Document information. Rev Date Details. A 04/06/2015 Draft. B 14/08/2015 Second draft. C 09/09/2015 Final. D 02/10/2015 Final

Transcription

1 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project (CL1056) 2 October 2015

2 Document information : Ausgrid Title: Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project Subtitle: (CL1056) Document No: A-CLM-RPT-1023 RevD Date: 2 October 2015 Rev Date Details A 04/06/2015 Draft B 14/08/2015 Second draft C 09/09/2015 Final D 02/10/2015 Final Author, Reviewer and Approver details Prepared by: Imogen Powell Date: 02/10/2015 Signature: Reviewed by: Amy Valentine Date: 02/10/2015 Signature: Approved by: Amy Valentine Date: 02/10/2015 Signature: Distribution Ausgrid, Parsons Brinckerhoff file, Parsons Brinckerhoff Library Parsons Brinckerhoff Australia Pty Limited 2015 Copyright in the drawings, information and data recorded in this document (the information) is the property of Parsons Brinckerhoff. This document and the information are solely for the use of the authorised recipient and this document may not be used, copied or reproduced in whole or part for any purpose other than that for which it was supplied by Parsons Brinckerhoff. Parsons Brinckerhoff makes no representation, undertakes no duty and accepts no responsibility to any third party who may use or rely upon this document or the information. Document owner Parsons Brinckerhoff Australia Pty Limited ABN Level 27 Ernst & Young Centre 680 George Street Sydney NSW 2000 GPO Box 5394 Sydney NSW 2001 Australia Tel: Fax: Certified to ISO 9001, ISO 14001, OHSAS 18001

3 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Contents Page number Abbreviations Executive summary iii iv 1. Introduction Objectives Scope of work Technical framework 2 2. Site information Site description Physical setting 3 3. Methodology Sampling rationale Preliminaries Soil sampling Laboratory analysis 6 4. Site assessment criteria Health based criteria 8 5. Results Subsurface conditions Field screening Soil laboratory results In situ waste classification Thermal resistivity testing QA/QC Data quality indicators Laboratory data quality indicators Field duplicates Summary of QA/QC Conclusions and recommendations 17 Parsons Brinckerhoff A-CLM-RPT-1023 RevD i

4 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 8. Limitations 18 List of tables Page number Table 2.1 Site details 3 Table 2.2 Physical site setting 3 Table 4.1 Soil assessment criteria HILs/HSLs 9 Table 5.1 Subsurface conditions 10 Table 6.1 DQI performance 13 List of appendices Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Figures Tables Laboratory reports Bore logs Thermal resistivity laboratory reports UCL 95 calculation sheets Parsons Brinckerhoff A-CLM-RPT-1023 RevD ii

5 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Abbreviations BTEX Benzene, toluene, ethylbenzene and xylene C6 C9 Light petroleum hydrocarbon chain fraction (for example, petrol) C10 C14 C15 C28 C29 C36 CEC DBYD ESA EPA Medium petroleum hydrocarbon chain fraction (for example, kerosene) Heavy petroleum hydrocarbon chain fraction (for example, diesel) Heavy petroleum hydrocarbon chain fraction (for example, lube oil) Cation exchange capacity Dial Before You Dig, online utility service Environmental site assessment Environment Protection Authority <1, <100 Less than the LOR, that is, less than 1 or 100 units LNAPL Light non-aqueous phase liquid LOR Laboratory limit of reporting m AHD Metres Australian height datum m BGL Metres below ground level m BTOC Metres below top of casing mg/l Milligram per litre ND (nd) Not detected above the LOR NHMRC National Health and Medical Research Council NL Not limiting OPP Organophosphorus pesticides OCP Organochlorine pesticides PAH Polycyclic aromatic hydrocarbon PID Photoionisation detector ppm Parts per million PQL Practical quantitation limit (of chemical concentration) RPD Relative percentage difference TDS Total dissolved solids, a measure of salinity TOC Total organic content TRH Total recoverable hydrocarbons mg/l Microgram per litre ms/cm MicroSiemens per centimetre VHC Volatile halogenated hydrocarbons VOC Volatile organic compound Parsons Brinckerhoff A-CLM-RPT-1023 RevD iii

6 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Executive summary Introduction and objectives Parsons Brinckerhoff Australia Pty Ltd (Parsons Brinckerhoff) was commissioned by Ausgrid to undertake a contamination and geotechnical investigation along the proposed underground 132 kv feeder route between Top Ryde and the Wentworth Point Underground Feeders (located in Homebush Bay), NSW ( the site ). The purpose of this investigation is to identify any contamination or hazardous material and assess thermal resistivity conditions that may be encountered during the redevelopment. The objectives of the investigation were to: minimise Ausgrid s liability in relation to the requirements of the Contaminated Land Management Act 1997, the Protection of the Environment Operations Act 1997 and other relevant legislation identify any unacceptable immediate risks of off-site contamination to human health or the environment provide in situ waste classification for samples collected from the site in accordance with the NSW Environmental Protection Agency (EPA) Waste Classification Guidelines Part 1: Classification of waste (2014) assess the geotechnical and thermal resistivity characteristics of the soil throughout the feeder route assess subsurface conditions to a depth of 1.5 m below the existing surface levels along the alignment of the proposed cable route assess rock depth where encountered within the nominated depth of investigation. Summary of site history The site is 4.5 km in length running from Gauthorpe Street, Rhodes to Princes Street, Ryde, NSW and is currently used as various roadways. A search of the NSW EPA contaminated sites database showed five contaminated sites with current and former notices near the site on the Rhodes Peninsula. Scope of work The scope of work comprised advancement of 36 soil investigation bores (SB1 to SB32 and SB34 to SB37) to a maximum depth of 1.5 metres below ground level (m BGL) with subsequent logging of subsurface conditions and soil sampling. Proposed bore location SB33 was not drilled for safety reasons posed by the proximity to traffic. Selected representative soil samples were collected and analysed by a laboratory for contaminants of concern comprising total recoverable hydrocarbons (TRH), benzene, toluene, ethylbenzene and xylene (BTEX), polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), eight heavy metals (arsenic, cadmium, chromium, copper, lead, mercury, nickel and zinc), polychlorinated biphenyls (PCBs), dioxins, furans, volatile halogenated hydrocarbons (VHCs) and asbestos in soil. Parsons Brinckerhoff A-CLM-RPT-1023 RevD iv

7 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Following the initial investigation additional drilling was undertaken at locations at SB3A, SB5A, SB15C and SB15D to refine the existing waste classification and at locations SB8A and SB8B to classify soil along a new section of the alignment. Results and conclusions Contaminant concentrations in soil were not identified above the heath based assessment criteria for vapour intrusion or dermal contact with soils by maintenance workers in a trench. However, concentrations of dioxins and furans were reported above the limits of reporting in soil sampled from the Rhodes peninsula (SB01 to SB08). There are no generic assessment criteria to compare these results to in Australia. It is recommended that either an assessment to derive site specific target levels is undertaken to determine the risk to maintenance workers in a trench or appropriate management procedures are put into place to remove the exposure to these contaminants of concern by workers in the trench. In addition, metals were detected at most locations and PAHs were detected at several of locations along the alignment. There are no generic criteria to assess these contaminants for the exposure scenario applicable to this project (direct contact by excavation workers), and a site specific risk assessment is recommended to determine appropriate controls. Based on the analytical results for SB09 to SB37 and within the usual limitations of environmental investigations (Section 8), concentrations of contaminants of concern which were assessed are not considered to present a risk to maintenance workers in a trench. Classifying waste based on in situ testing is restricted by the inability to visually assess all the material to be removed. Based on this, in situ waste classification is based on assumptions regarding similar materials, which are grouped by composition, chemical analysis and proximity. With these assumptions, material to be removed during the trenching work has been classified in sections based on the laboratory results and the similarity of materials in the boreholes. Material from SB01 to SB15D and SB15C to SB37 is classified as general solid waste providing the material is found to be fill material as described in this report, clay/sandy clay, shale or sandstone and the following are not observed during excavation of the trench: hydrocarbon odour or sheen black staining ash slag bitumen within the fill. If any of the above are observed or the material is different from the soil description used for the classification the soil should be stockpiled separately for additional laboratory testing. Additional sampling in the area between SB14 and SB16 has reduced the area classified as hazardous waste to a localised area around SB15, delineated by bores SB15C and SB15D. The material around SB15 is classified as hazardous waste and during works will be required to be separated and disposed of at a facility licenced to handle this classification of waste. A new alignment has been proposed since the initial investigation event and SB8 has been relocated and sampled as SB08A and SB08B. Material from SB08A and SB08B are below the criteria of general solid waste. Parsons Brinckerhoff A-CLM-RPT-1023 RevD v

8 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 1. Introduction Parsons Brinckerhoff Australia Pty Ltd (Parsons Brinckerhoff) was commissioned by Ausgrid to undertake waste classification, a contamination investigation and geotechnical investigation along the proposed underground 132 kv feeder route between Top Ryde and Wentworth Point Underground Feeders (located in Homebush Bay), NSW ( the site ). Ausgrid has indicated that they are planning to replace cables between the Wentworth Point Underground Feeders and East Ryde via substations located in Meadowbank and Top Ryde. The existing 132 kv cables are to be retired as part of a network wide project to retire fluid filled cables, particularly in areas where there is a water crossing. The existing cable at this site crosses the Parramatta River underwater. The trench proposed for the replacement cable will be 1.5 m deep and approximately 4.5 km in length. The site location is presented on Figure 1 in Appendix A. The purpose of this environmental investigation and geotechnical sampling is to identify any contamination or hazardous material and assess thermal resistivity conditions that may be encountered during the redevelopment. 1.1 Objectives The objectives of the waste classification, contamination investigation and geotechnical investigation were to: minimise Ausgrid s liability in relation to the requirements of the Contaminated Land Management Act 1997, the Protection of the Environment Operations Act 1997 and other relevant legislation identify any unacceptable immediate risks of off-site contamination to human health or the environment provide in situ waste classification for samples collected from the site in accordance with the NSW Environmental Protection Agency (EPA) Waste Classification Guidelines Part 1: Classification of waste (2014) assess the thermal resistivity characteristics of the soil throughout the feeder route assess subsurface conditions to a depth of 1.5 m below the existing surface levels along the alignment of the proposed cable route assess rock depth where encountered within the nominated depth of investigation. 1.2 Scope of work To achieve the above objectives the following scope of works was undertaken: fieldwork preliminaries comprising: 4 preparation of a health, environmental and safety plan (HESP) 4 a Dial Before You Dig (DBYD) underground utilities search site inspection, service scanning and intrusive investigation works comprising: 4 site inspection during drilling works for any obvious signs of contamination 4 service locating with an accredited service location contractor. These works were confirmed by an Ausgrid cable locator and Ausgrid s Senior Risk Mitigation Technician Parsons Brinckerhoff A-CLM-RPT-1023 RevD 1

9 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 4 advancement of 36 soil investigation bores (SB1 to SB32 and SB34 to SB37) to a maximum depth of 1.5 metres below ground level (m BGL) with subsequent logging of subsurface conditions and soil sampling (borehole locations are presented on Figure 2 in Appendix A) 4 advancement of an additional six soil investigation bores (SB3A, SB5A, SB8A, SB8B, SB15C and SB15D) to a maximum depth of 1.5 metres below ground level (m BGL) with subsequent logging of subsurface conditions and soil sampling (borehole locations are presented on Figure 2 in Appendix A) 4 screening of soil with a calibrated photoionisation detector (PID) to assess if volatile organic compounds (VOCs) are present 4 laboratory analysis of selected soil samples for total recoverable hydrocarbons (TRH), benzene, toluene, ethylbenzene and xylene (BTEX), polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), eight heavy metals (arsenic, cadmium, chromium, copper, lead, mercury, nickel and zinc), polychlorinated biphenyls (PCBs), dioxins, furans, volatile halogenated hydrocarbons (VHCs) and asbestos in soil classification of the materials through visual assessment and laboratory analysis of representative soil samples, in accordance with current guidance, into one of the six groups that pose risks to the environment and human health which are: 4 special waste (e.g. asbestos waste) 4 liquid waste 4 hazardous waste 4 restricted solid waste 4 general solid waste(putrescible) 4 general solid waste (non-putrescible). preparation of this report which documents the findings of the investigation. 1.3 Technical framework This investigation has been undertaken and reported in accordance with the following guidelines: Contaminated Land Management Act NSW National Environmental Protection Measure (Assessment of Site Contamination) Measure 1999 (NEPM; as amended 2013). NSW EPA 2014, Waste Classification Guidelines Part 1: Classification of waste. NSW EPA 2011, Guidelines for Consultants Reporting on Contaminated Sites. Department of Environment and Conservation (DEC) 2006, Guidelines for the NSW Site Auditor Scheme. Environmentally Hazardous Chemicals Act 1985 (EHC Act) It is understood that although there is currently no site auditor engaged for this project the reporting should be sufficient to satisfy the requirements of the auditor guidelines (NSW DEC, 2006) should an auditor be required at a later date. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 2

10 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 2. Site information 2.1 Site description Pertinent site details are provided in Table 2.1. The site location plan is presented on Figure 1 in Appendix A. Table 2.1 Site address Site details A linear site running from Gauthorpe Street, Rhodes to Princes Street, Ryde, NSW Site identifiers Size Current zoning Current site use Proposed site use Surrounding land uses Council roadway and Lot 1000 in Deposited Plan and Lot in Deposited Plan km in length Under the Canada Bay Local Environmental Plan 2013 (Canada Bay LEP) the western half of Gauthorpe Street is classified as R4 (high density residential), the eastern half as B4 (mixed use) and Walker Street as SP2 (infrastructure). Under the Ryde Local Environmental Plan 2014 (Ryde LEP) the alignment is classified as SP2 (Railway) from Meadowbank Wharf to Railway Street, B4 (Mixed Use) from Railway Street to See Street and R2 (low density residential) from See Street to Buffalo Road with the exception of Princes Street between Blaxland Road to Argyle Avenue which is RE1 (public recreation) and 50 m of Princes Street immediately north of Argyle Avenue and adjacent to Buffalo Creek which is E2 (environmental conservation). Roadways with mixed use adjacent Site use will remain the same The cable route is located within roadways and surrounded by high density residential to the west and railway track to the west in Rhodes; railway track to the west and mixed use to the west in Meadowbank; and low density residential in all directions in Ryde. The route passes through an area of public recreation and an area of environmental conservation on Princes Street in Ryde at the most northerly point of the route. One substation is located immediately adjacent to the route in Meadowbank at the corner of See and Macpherson Streets and a second substation is located at the end of the route on Buffalo Road, Ryde. 2.2 Physical setting Details of the site s physical setting are provided in Table 2.2. Table 2.2 Physical site setting Topography and drainage Geology The site is situated approximately 9 metres above Australian height datum (m AHD) at Rhodes and Meadowbank adjacent to the Parramatta River to 55 m AHD at the highest point of the route at the junction between Princes Street and Victoria Road. Groundwater in the area is expected to drain towards the Parramatta River. Based on Sydney 1:100,000 Geological Series Sheet 9130, Geological Survey of NSW, NSW Department of Mineral Resources, 1083, the site is underlain by Quaternary alluvium, gravel, sand, silt and clay in the Rhodes Peninsula from Gauthorpe Street to the northerly portion of Walker Street. The most northerly point of Walker Street is underlain by Bringelly Shale, Minchinbury Sandstone and Ashfield Shale comprising shale with some sandstone beds. The portion of the site from Meadowbank ferry Wharf to See Street in underlain by Hawkesbury Sandstone, comprising sandstone, quartz with some shale, and the remainder of the site is underlain by Bringelly Shale, Minchinbury Sandstone and Ashfield Shale once more. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 3

11 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Acid sulfate soils Groundwater Contaminated site search Sensitive receptors A search of the Australian Soil Resource Information System (ASRIS) ( conducted on 16 February 2015 indicated that the probability of occurrence of acid sulfate soils is: extremely low probability with very low confidence on the Rhodes Peninsula low probability in Meadowbank at the land adjacent to the railway track; the land bordering the south-eastern portion of the Meadowbank Peninsula has a high probability of occurrence, however, the cable is not proposed to be laid in this area low probability in the remainder of the route from Meadowbank to Buffalo Road, Top Ryde Acid sulfate soils were not further considered in this assessment. The nearest surface water body to the site is the Parramatta River, which the cable is proposed to cross using the Meadowbank railway bridge. The next nearest surface water body is Buffalo Creek located immediately east of Princes Street and approximately 50 m south of Clayton Street, in Ryde, at its nearest point and discharged to the Lane Cove River, located approximately 2.7 km east of the site. A search of licenced wells, undertaken on the Department of Natural Resources register on 16 February 2015, indicated there are six registered wells located within 500 m of the site. No information was available for any of the wells. A search of the NSW EPA contaminated sites database ( conducted on 26 February 2015 showed five contaminated sites with current and former notices near the study area, comprising: Allied Feeds, Walker Street, immediately adjacent to the site to the west. Seven notices for this site were revoked in Beds of Homebush Bay, approximately 100 m west of Gauthorpe Street. Four notices ended in 2014 and 2015 and one on-going maintenance order is current. Homebush Bay South Sediments, Alfred Street, approximately 640 m south-east. There are 10 former notices associated with this site and one current on-going maintenance order. Rhodes Waterside, Mary Street, approximately 360 m south of the site. There are two former notices associated with this site. Union Carbide Plant, Walker Street, immediately to the north of Gauthorpe Street and west of Walker Street. There are 41 former notices and 13 current notices associated with this site. Receptors for this project are considered to be workers in the Ausgrid cable trench. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 4

12 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 3. Methodology 3.1 Sampling rationale Sampling locations were positioned approximately every 100 m along the proposed cable route, also taking into account the presence of underground and aboveground infrastructure structures, the proximity to road junctions and Roads and Maritime Services (RMS) roads and the limitations of subsurface conditions. 3.2 Preliminaries A desktop search for underground services using the Dial Before You Dig service was undertaken prior to intrusive investigations. Sampling locations were cleared prior to the commencement of intrusive works by an experienced service locater. The service locater was provided with information/plans from the relevant asset owners and site-specific plans from Ausgrid. In accordance with Parsons Brinckerhoff policy, all works were undertaken in accordance with the HESP. Hand augering was used as a non-destructive technique to clear each borehole location prior to drilling. 3.3 Soil sampling The fieldworks methodologies adopted during the ESA were consistent with Parsons Brinckerhoff field procedures. These have been summarised in Table 3.1. Table 3.1 Task Field methodologies Details Service clearance Drilling method Soil logging Soil bore backfilling Prior to breaking ground, all investigation locations were checked for the presence of buried services by an experienced service locator and cross checked with the DBYD plans obtained from all asset owners. All bores were advanced using either hand auger when the geology comprised fill or hand auger in fill and solid stem auger in natural material to the maximum depth of investigation (1.5 mbgl). Soil logging was based on field interpretation and was generally consistent with Australian standard (AS) All soil bores were backfilled with washed sand. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 5

13 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Task Soil sampling method Sample preservation Quality assurance/quality control (QA/QC) Waste disposal Details Soil samples were collected directly from the hand auger or the drill auger using disposable nitrile gloves. All samples collected were placed in laboratory supplied containers with Teflon lined lids. Soil samples were generally collected from the following depths: surface ( mbgl) 0.5 mbgl 1.0 mbgl 1.5 m BGL at changes in lithology or evidence of contamination. All soil samples collected during the works were screened with a calibrated photoionisation detector (PID) to assess if volatile organic compounds (VOCs) were present. Samples were collected directly from the auger, with the sampling equipment cleaned with suitable phosphate-free detergent and rinsed with distilled water between sampling episodes to minimise the potential for cross contamination. Samples were stored in an insulated cooler box with ice immediately after sampling. Samples were kept chilled prior to and during delivery to the selected National Association of Testing Authorities (NATA) accredited laboratories via a courier under appropriate chain of custody documentation. The following QA/QC samples were collected: Duplicate samples were collected in the field at the rate of 1 in 20 primary samples for analysis by each of the primary and secondary laboratories. A rinsate blank sample at the completion of each sampling event. A trip blank was included in esky during transportation of samples to the laboratory. No waste was created during the work; excavated soil was sent to the laboratories for testing. 3.4 Laboratory analysis Australian Laboratory Services Pty Ltd (ALS) was the primary laboratory and Envirolab Pty ltd (Envirolab) was the secondary or check laboratory for the soil sample analysis. Both laboratories are accredited by the NATA for soil analysis. A summary of samples and analyses is listed in Table 3.2. Table 3.2 Laboratory analyses summary Analyte Primary Duplicate Triplicate Soil TRH/BTEX PAHs Heavy metals (except nickel) Nickel PCBs/OPPs/OCPs Phenols Asbestos in soil Dioxins Furans Parsons Brinckerhoff A-CLM-RPT-1023 RevD 6

14 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Analyte Primary Duplicate Triplicate Soil VHCs CEC, ph, iron and TOC Parsons Brinckerhoff A-CLM-RPT-1023 RevD 7

15 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 4. Site assessment criteria To assess the contamination status, the NSW Environment Protection Authority (EPA) refers to National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPM; as amended 2013), specifically Schedule B1, Investigation Levels For Soil and Groundwater. Schedule B1 provides a framework for the use of investigation and screening levels based on a matrix of human health and ecological risks. In addition, the Cooperative Research Council for Contamination Assessment and Remediation of the Environment (CRC CARE) Technical Report No. 10 (Friebel & Nadebaum, 2011) provides criteria for petroleum hydrocarbons, specifically for vapour inhalation for intrusive maintenance workers in shallow trenches and for direct contact. 4.1 Health based criteria Schedule B1 of the NEPM (2013) defines health investigation levels (HILs) that have been developed for a broad range of metals and organic contaminants in soil. HILs are scientifically based, generic assessment criteria designed to be used in the first stage (Tier 1 or screening ) of an assessment of potential risks to human health from chronic exposure to contaminants. The HILs are applicable to all soil types and generally apply to the top 3 m of soil so they are intentionally conservative and are based on a reasonable worst-case scenario for four generic land use settings: HIL A: Residential with garden/accessible soil (home grown produce <10% fruit and vegetable intake, (no poultry), also includes children s day care centres, preschools and primary schools) HIL B: Residential with minimal opportunities for soil access includes dwellings with fully and permanently paved yard space such as high-rise buildings and flats HIL C: Public open space such as parks, playgrounds, playing fields (e.g. ovals), secondary school fields and footpaths. It does not include undeveloped public open space (such as urban bushland and reserves) which should be subject to a site-specific assessment where appropriate HIL D: Commercial/industrial such as shops, offices, factories and industrial sites. Taking into consideration the use of the site as a roadway, which provides no access to the soil or groundwater beneath it, it is not considered appropriate to assess the site based upon its current zonings but to assess the site based on the potential risk to intrusive workers from vapour inhalation and for direct contact. Although generic exposure HIL criteria provided in the NEPM (2013) do not apply to the proposed work, potential contaminants, such as PAHs and metals, should be considered using a site-specific risk assessment based on the applicable exposure scenario. Additionally, there are no generic assessment criteria available for dioxins and furans, which should also be considered using a site-specific exposure assessment. For the purposes of this report, detections of contaminants which do not have criteria will be discussed. The HSLs provided in Friebel & Nadebaum (2011) vary with soil type and depth. For the purposes of this investigation, the criteria for sandy soils have been adopted with a depth profile of 0 m to less than 2 m as samples were collected from within these depths and the cable trench will be 1.5 m deep. The soil assessment criteria for this investigation is summarised in Table 4.1. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 8

16 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Table 4.1 Soil assessment criteria HILs/HSLs Maintenance/excavation workers Analyte HSLs (in sand) 2 (mg/kg) Direct contact 1 (mg/kg) 0 to <2 m TRH and BTEX TRH C 6-C 10 NL 82,000 TRH >C 10-C 16 NL 62,000 TRH >C 16-C 34 (F3) - 85,000 TRH >C 34-C 40 (F4) - 120,000 Benzene 77 1,100 Toluene NL 120,000 Ethylbenzene NL 85,000 Xylene (Total) NL 130,000 PAHs Naphthalene NL 29,000 (1) CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) (2) CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - No assessment criteria available NL Non-limiting due to maximum vapour concentrations being below the acceptable health risk level Parsons Brinckerhoff A-CLM-RPT-1023 RevD 9

17 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 5. Results 5.1 Subsurface conditions A summary of the subsurface geological profile encountered at the site is presented in Table 5.1 and bore logs are presented in Appendix D. Table 5.1 Subsurface conditions Depth (mbgl) General soil description 0.0 to 0.1 Asphalt, generally 0.0 to 0.3 Topsoil and sand in SB8B, SB09 and SB10 (immediate vicinity of Parramatta River) only 0.0 to 0.45 Concrete in SB06, SB07 and SB8A 0.0 to 0.5 Topsoil: brown low plasticity clay and gravel, medium grained sand with round gravel at SB28, SB34, SB to 1.5 Fill: variable between borehole locations comprising grey road base, grey brown coarse gravel with sand, silt, gravel and sandstone inclusions. 0.6 to 1.5 Clay and sandy clay: red and grey mottled, low plasticity, stiff (SB03, SB03A, SB05, SB05A,, SB07, SB14, SB16, SB18, SB19, SB23, SB24, SB25, SB27, SB28, SB29, SB30, SB31, SB32 and SB35). 1.0 to 1.5 Shale: weathered, weak (SB04) 0.4 to 1.5 Sandstone: red and white, weak to strong, weathered, coarse grained (SB8A, SB11 through SB15D, SB18, SB19, SB21, SB22, SB25, SB26, SB29, SB30, SB35, SB36 and SB37). 5.2 Field screening A maximum PID reading of 1.5 ppm was recorded, in the sample obtained from 0.1 m depth within borehole SB01 (sample SB01_0.1m), indicating minimal volatile organic compounds were present in the subsurface. 5.3 Soil laboratory results No concentrations of contaminants of concern were reported above the adopted health assessment criteria. No concentrations of BTEX, OCPs, OPPs or VHCs were reported above the LORs. Concentrations of TRH were reported above the LORs in soil samples from SB01, SB08, SB15, SB20, SB24 and SB36, ranging between 180 mg/kg and 13,400 mg/kg. The detected hydrocarbons were predominantly in the >C16-C34 and >C34-C40 fractions, although one result for >C10-C16 was reported. Concentrations of PAHs above LORs were reported in SB01, SB08A and SB08B, SB15, SB15D, SB24 and SB36. Detected total PAHs ranged from 8.4 mg/kg to 3,410 mg/kg. Benzo(a)pyrene was detected between 0.6 mg/kg and 153 mg/kg, and benzo(a)pyrene toxic equivalency quotient, a weighted sum of carcinogenic PAHs, was between 0.8 mg/kg and 208 mg/kg. There are no adopted criteria for PAHs as the HILs for generic exposure pathways are not applicable. Concentrations of most heavy metals were reported in the majority of the soil samples analysed. There are no generic assessment criteria for metals which were considered applicable. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 10

18 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Concentrations of dioxins and furans were reported above the LORs, however, there are no adopted assessment criteria for these contaminants of concern as no generic criteria were available. No asbestos (bonded ACM or respirable fibres) was detected in any of the soil samples analysed and asbestos or ACM was not visually observed in any of the boreholes at the site. A table of all laboratory results is provided in Appendix B with laboratory certificates provided in Appendix C. 5.4 In situ waste classification The results of the laboratory analyses were also compared to the contaminant threshold values for classifying waste by chemical assessment without the leaching test as detailed in Table 1 of the NSW EPA (2014) Waste Classification Guidelines Part 1: Classifying Waste. The following results were above the criteria for general solid waste: benzo(a)pyrene concentrations at at SB8, mbgl at SB8A and SB8B, mbgl and mbgl at location SB15, mbgl at SB15C and mbgl at location SB24 total PAH concentration at mbgl at location SB15 nickel concentrations at mbgl in SB3, at mbgl in Dup02 (duplicate of SB5), mbgl at SB8A and SB8B, mbgl at SB14, mbgl in SB20 and in SB32 Samples were subsequently submitted to the laboratory for analysis using the toxicity characteristic leaching procedure (TCLP) to confirm whether these elevated concentrations were considered to be leachable. The results were then compared to Table 2 of the NSW EPA (2014) guidelines for classifying waste with the TCLP test. At SB3 and SB5, TCLP was unable to be undertaken on the elevated sample as the soil samples had been disposed by the laboratory. To refine the waste classification additional samples from locations SB3A and SB5A were collected to replicate the original exceedance or obtain sufficient data to calculate the 95% upper confidence limit (UCL) of the mean concentration. The additional data from SB3A and SB5A was included in the original data set and the 95% UCL calculated. At SB3A, the 95% UCL was marginally above the criteria for nickel at 42 mg/kg and as such, TCLP analysis was undertaken on the highest available concentration. All TCLP was recorded below the LOR suggesting nickel collected from samples around this location are not leachable and the elevated concentration from the original SB3 concentration can be assessed against the SCC1 from the waste classification guidelines. SB5A reported a 95% UCL of 34 mg/kg which is below the current SCC1 guidelines for general solid waste. Based on this, the material in each borehole is classified as general solid waste with the exception of borehole SB15, which is classified as hazardous waste. UCL 95 calculations are presented in Appendix F. Classifying waste based on in situ testing is restricted by the inability to visually assess all the material to be removed. Based on this, in situ waste classification is based on assumptions regarding similar materials, which are grouped by composition, chemical analysis and proximity. With these assumptions, material to be removed during the trenching work has been classified in sections based on the laboratory results and the similarity of materials in the boreholes. Material from SB01 to SB15D and SB15C to SB37 is classified as general solid waste. Material between SB15D and SB15C is classified as hazardous waste based on the presence of benzo(a)pyrene exceeding the restricted solid waste criteria. Summary tables of results in comparison to waste classification criteria are provided as Tables 1 to 6 in Appendix B. Waste classification for the trench by area is presented on Figure 2 in Appendix A. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 11

19 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 5.5 Thermal resistivity testing Representative samples of the native soil were obtained from 35 of the nominated 36 boreholes over the two phases of the site investigation (18/02/2015 to 26/02/2015 and 7/05/2015 to 8/05/2015). Borehole SB33 was not drilled and SB9 was abandoned at 0.7m depth due to collapsing of the side walls. The sampling technique was confirmed by Parsons Brinckerhoff in the presence of a representative of Geotherm. Laboratory thermal resistivity testing was conducted by Geotherm in accordance with IEEE Standard Guide for Soil Thermal Resistivity Measurements, ASTM Standard D5334 and Ausgrid standard NS130, Appendix K. In the laboratory, the samples were re-compacted to 98% of standard Proctor compaction effort. The moisture content during sample preparation was not altered from that which was contained in the samples when received, until the final dry out process. The moisture content was determined in accordance with AS and the dry density determined by mass per volume calculation. The results of the thermal resistivity testing are presented in Appendix E. In summary, the material standard Proctor density ranged from 1.87 to 2.18 T/m 3 with the dry density in the range 1.40 to 1.97 T/m 3. The test sample moisture content ranged from 0.8% (SB13, silt) to 33.5% (SB28, clay). The thermal resistivity at the wet moisture content typically ranged from 0.47 to 1.09 Km/W with one exception of 1.53 Km/W at SB13. The fully dry thermal resistivity ranged from 0.96 to 2.04 Km/W. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 12

20 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 6. QA/QC 6.1 Data quality indicators The data quality indicators (DQIs) for the project are presented in Table 6.1. Table 6.1 DQI performance DQI Item Conformance Completeness (a measure of the amount of useable data from a data collection activity) Comparability (the confidence (expressed qualitatively) that data may be considered to be equivalent for each sampling and analytical event) Representativeness (the confidence (expressed qualitatively) that data are representative of each media present on the site) Precision (a quantitative measure of the variability (or reproducibility) of data) Accuracy (bias) (a quantitative measure of the closeness of reported data to the true value) All critical locations sampled Parsons Brinckerhoff documented procedures which are based on accepted industry standard practices complied with Experienced samplers Correct documentation Same standard operating procedures (SOPs) used on each occasion Experience sampler Climatic conditions (temperature, rainfall, etc.) Same type of samples collected Appropriate media sampled according to proposal All media identified in proposal sampled Standard operating procedures (SOPs) appropriate and complied with SOPs appropriate and complied with Majority - one location was not completed due to access restrictions Yes Yes Yes Yes Yes Weather conditions were not considered to have affected the results Yes Yes Yes, where present Yes Yes 6.2 Laboratory data quality indicators DQIs for the laboratory analysis are summarised in Table 6.2. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 13

21 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Table 6.2 Laboratory data quality indicators DQI Item Conformance Completeness All critical samples analysed Yes All contaminants of concern analysed Appropriate methods and PQL Sample documentation complete Sample holding times complied with Yes Yes Yes Yes Comparability Sample analytical method used Yes Sample PQL (justify or quantify if different) Same laboratories (justify or quantify if different) Same units (justify or quantify if different) Yes NA Yes Representativeness All relevant samples analysed Yes Precision Analysis of laboratory duplicates Yes - results are considered to be acceptable and representative of site conditions Analysis of field duplicates Analysis of laboratory prepared volatile trip spikes Yes Yes Accuracy (bias) Analysis of trip and rinsate blanks (one per batch) Yes - results indicate cross contamination was unlikely, decontamination procedures were adequate and ambient conditions were unlikely to affect the quality of results Analysis of reagent blanks Analysis of method blanks Yes - Refer to laboratory certificates of analysis Analysis of matrix spikes and matrix spikes duplicates Analysis of surrogate spikes and laboratoryprepared spikes Analysis of reference materials/control samples 6.3 Field duplicates The purpose of duplicate samples are to estimate the variability of a given characteristic or contaminant associated with a population. Blind (intra-laboratory) and split (inter-laboratory) duplicate soil samples were collected for analysis. Duplicate samples were labelled so as to conceal their relationship to the primary sample from the laboratory. Field duplicate soil samples were collected from soil immediately adjacent to the primary sample by placing approximately equal portions of the primary sample into two sample jars. The field QA/QC sampling program comprised two blind duplicates sent to the primary laboratory (sample DUP02 and DUP04) and two split duplicates (sample TRIP02 and TRIP04) sent to a secondary laboratory. This conformed to the NEPM QA/QC specified ratio of 1 in 20 samples. In addition, five equipment rinsate Parsons Brinckerhoff A-CLM-RPT-1023 RevD 14

22 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) was collected for analysis along with five trip blanks and five trip spikes. Relative percentage differences (RPDs) were calculated for the primary and duplicate samples for assessment of the data quality, in particular for assessment of the reproducibility of the analytical data measurements or precision given the adopted field and laboratory methods. The RPDs were calculated using the formula below. where Ro is the primary sample and Rd is the primary duplicate. The RPD values were compared to the 30% RPD acceptance criterion outlined in NEPM (2013). RPDs for results less than the laboratory practical quantitation limit (PQL) were not calculated. In instances where results were greater than the PQL for the one sample, but below PQL for the corresponding primary or duplicate sample, a result equal to the PQL value was adopted where necessary in order to make a calculation possible. In general, the calculated RPD did not exceed RPD acceptance limits with the exception of: an exceedance for arsenic for primary sample SB05_0.5 and its corresponding intra-laboratory duplicate (DUP02) of 46% an exceedance for arsenic for primary sample SB19_1.0 and its corresponding inter-laboratory duplicate (TRIP04) of 55% an exceedances for cadmium for primary sample SB19_1.0 and its corresponding intra-laboratory duplicate (DUP04) of 67% and inter-laboratory duplicate (TRIP04) of 133% an exceedance for chromium for primary sample SB19_1.0 and its corresponding inter-laboratory duplicate (TRIP04) of 42% exceedances for copper for primary sample SB05_0.5 and its corresponding intra-laboratory duplicate (DUP02) of 123% and inter-laboratory duplicate (TRIP02) of 42% an exceedance for copper for primary sample SB19_1.0 and its corresponding intra-laboratory duplicate (DUP04) of 46% an exceedance for lead for primary sample SB05_0.5 and its corresponding intra-laboratory duplicate (DUP02) of 97% exceedances for nickel for primary sample SB05_0.5 and its corresponding intra-laboratory duplicate (DUP02) of 165% and inter-laboratory duplicate (TRIP02) of 86% an exceedance for zinc for primary sample SB05_0.5 and its corresponding intra-laboratory duplicate (DUP02) of 146% an exceedance for zinc for primary sample SB19_1.0 and its corresponding inter-laboratory duplicate (TRIP04) of 86% It is likely that the RPD exceedance for metals between primary, duplicate and triplicate samples is due to the heterogeneity of the soils, which is common for fill material. The primary laboratory reported laboratory control spike recoveries less than the lower control limit in a total of three samples, a regular sample surrogate recovery less than the lower data quality limit objective in one sample an a regular sample surrogate recovery great than the lower data quality limit objective in one sample. One trip spike sample was analysed three days after the date it was due for analysis. Laboratory analytical reports and QA/QC reports are presented in Appendix C. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 15

23 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 6.4 Summary of QA/QC The sampling methods (including sample preservation, transport and decontamination procedures) and laboratory methods followed during the investigation were consistent with Parsons Brinckerhoff s protocols. It is considered that the data are adequate for the purpose of the study. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 16

24 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 7. Conclusions and recommendations Contaminant concentrations in soil were not identified above the heath based assessment criteria for vapour intrusion or dermal contact with soils by maintenance workers in a trench, however, concentrations of dioxins and furans were reported above the LORs in soil sampled from the Rhodes peninsula (SB01 to SB08). There are no generic assessment criteria for these compounds. It is recommended that an assessment to derive site specific target levels is undertaken to determine the risk to maintenance workers in a trench. In addition, metals were detected at most locations and PAHs were detected at several of locations along the alignment. There are no generic criteria to assess these contaminants for the exposure scenario applicable to this project (direct contact by excavation workers), and it is recommended that either an assessment to derive site specific target levels is undertaken to determine the risk to maintenance workers in a trench or appropriate management procedures are put into place to remove the exposure to these contaminants of concern by workers in the trench. Based on the analytical results for SB09 to SB37 and within the usual limitations of environmental investigations (Section 8), concentrations of contaminants of concern which have been assessed are not considered to present a risk to maintenance workers in a trench. Based on the laboratory analytical results and the additional sampling program including SB3A, SB5A and SB8A, material from SB1 to SB15D, SB15C to SB32 and SB34 to SB37 can be disposed of as general solid waste providing the material is found to be fill material as described in this report, clay/sandy clay, shale or sandstone and the following are not observed during excavation of the trench: hydrocarbon odour or sheen black staining ash slag bitumen within the fill. If any of the above are observed or the material is different from the soil description used for the classification the soil should be stockpiled separately for additional laboratory testing. The material around SB15, between SB15D and SB15C, is classified as hazardous waste and during works will be required to be separated and disposed of at a facility licenced to handle this classification of waste. A new alignment has been proposed since the initial investigation event and SB8 has been relocated and sampled as SB08A and SB08B. Material from SB08A and SB08B are below the criteria of general solid waste. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 17

25 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) 8. Limitations Scope of services This environmental site assessment report (the report) has been prepared in accordance with the scope of services set out in the contract, or as otherwise agreed, between the client and Parsons Brinckerhoff (scope of services). In some circumstances the scope of services may have been limited by a range of factors such as time, budget, access and/or site disturbance constraints. Reliance on data In preparing the report, Parsons Brinckerhoff has relied upon data, surveys, analyses, designs, plans and other information provided by the client and other individuals and organisations, most of which are referred to in the report (the data). Except as otherwise stated in the report, Parsons Brinckerhoff has not verified the accuracy or completeness of the data. To the extent that the statements, opinions, facts, information, conclusions and/or recommendations in the report (conclusions) are based in whole or part on the data, those conclusions are contingent upon the accuracy and completeness of the data. Parsons Brinckerhoff will not be liable in relation to incorrect conclusions should any data, information or condition be incorrect or have been concealed, withheld, misrepresented or otherwise not fully disclosed to Parsons Brinckerhoff. Environmental conclusions In accordance with the scope of services, Parsons Brinckerhoff has relied upon the data and has conducted environmental field monitoring and/or testing in the preparation of the report. The nature and extent of monitoring and/or testing conducted is described in the report. On all sites, varying degrees of non-uniformity of the vertical and horizontal soil or groundwater conditions are encountered. Hence no monitoring, common testing or sampling technique can eliminate the possibility that monitoring or testing results/samples are not totally representative of soil and/or groundwater conditions encountered. The conclusions are based upon the data and the environmental field monitoring and/or testing and are therefore merely indicative of the environmental condition of the site at the time of preparing the report, including the presence or otherwise of contaminants or emissions. Also, it should be recognised that site conditions, including the extent and concentration of contaminants, can change with time. Within the limitations imposed by the scope of services, the monitoring, testing, sampling and preparation of this report have been undertaken and performed in a professional manner, in accordance with generally accepted practices and using a degree of skill and care ordinarily exercised by reputable environmental consultants under similar circumstances. No other warranty, expressed or implied, is made. Report for benefit of client The report has been prepared for the benefit of the client and no other party. Parsons Brinckerhoff assumes no responsibility and will not be liable to any other person or organisation for or in relation to any matter dealt with or conclusions expressed in the report, or for any loss or damage suffered by any other person or organisation arising from matters dealt with or conclusions expressed in the report (including without limitation matters arising from any negligent act or omission of Parsons Brinckerhoff or for any loss or damage suffered by any other party relying upon the matters dealt with or conclusions expressed in the report). Other parties should not rely upon the report or the accuracy or completeness of any conclusions and should make their own enquiries and obtain independent advice in relation to such matters. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 18

26 Ausgrid Waste Classification, Contamination Investigation and Geotechnical Investigation for the Top Ryde to Wentworth Point Underground Feeders cable project - (CL1056) Other limitations Parsons Brinckerhoff will not be liable to update or revise the report to take into account any events or emergent circumstances or facts occurring or becoming apparent after the date of the report. The scope of services did not include any assessment of the title to or ownership of the properties, buildings and structures referred to in the report nor the application or interpretation of laws in the jurisdiction in which those properties, buildings and structures are located. Parsons Brinckerhoff A-CLM-RPT-1023 RevD 19

27 Appendix A Figures

28 NU E ST RE ET ROAD TE NN YS O KEMP ST STREET W VIE BAY RO AD N TR EE T ID BASS A ST RE FR ET AN CE S RO AD REE T RO AD W AR NE R ST SP RE EN ET CE CH R AP S TR M AN EE T ST RE ET ET STR EET PO TT SS TR EE T AV E ET TR EE T PUTNEY ST RE ET T EE TR ST RE ET AR NO LD FR E KS R IC E D STRE ER HT RO AD EY AZ L BE E NE Y PU T N RO AD CR ES SY CR E NT IV DR ST AN LE YS LLI SI M ITC HE LL S PE M OR RI SO RO AD RO AD KE LL S PA RA DE BR IG DO LA N AC AC IA SCH LE SS CH AR RO AD DO UE PA RR Y TR EE T AD DT AR CI SU SA N TR EE T EN N AV Y WA Y DE LA NG E RO CO NC OR D UE CAVELL A VEN D WALKER STREET BLAXLAN D ROA E ET BU FF AL O S TR E T E ES CE FO RR ES T HIL L ST ON EA VE NU E GL AD ST RE ET PR IN LT CE O SS N UG PA ST TR LA YT RE EE SS EN T ET TR S TR EE EE T T M OR ES LI O 'R BO U DRIV E INE SH OREL Source: Land and Property Information (a division of the Department of Finance and Services) 2012 LLEWELLY N STR N IR VI N ST RE ET E ST RE CH ET OS UR BO CH RN ST EA RE VE ET NU E BE L PO RT ER N AL LS EET TR E STREE T RHODES AI TC HA ND AR AR GY LE ST RE ET TU C OR EL LIN AN ST RE E ET DEV BE LM VICTO RIA ROAD R ST RO AD SM NS UE AV EN AD CL AY TO Y NR HE HI LL PS O EE T STR E GAUTHO RP Ausgrid route LEEDS ST REET NU E RCUIT RO SIM TSO WA OA D PE AK Cadastre ER LE IEW RV TE WA BU RR OW AY R MATT A RI V P LO O PARR A AV E E NL AV RYDE UE AR RA S REE T TR EE T TR EE T ST E S YER O TR EE NG S T KE R SH EP HE RD DE N BO W N UE EN BAY DR IVE ST RE ET EE T ST R E OW CRE ME AD RO W OR IR AV EGA CA R TH TR EET G NA N SQ U EA S T CE N ST RE ET FO GR RSY IFF TH ITH ST S A REE VE T NU E LA NE NO OK GRAN D AV ENUE FEDERAL RO AD MEADOWBANK SE AN GAS STR EET ST RE RE W ROAD ES M STREET JA ST RE ET TR EE T W AT T ST RE ET ES PO PE S AD RO BANK STREET A ND ST RE ET T EE ET STITU TION RH OD TR NS REET IDE ST ADELA CON T IO STA DEAKIN STREET SITE LOCATION HE S PA RK ES S EN REET MONS AVENUE HUXLEY ST HU G AUSGRID TOP RYDE TO HOMEBUSH AUSGRID m [ Figure 1 Site location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F001_A1.mxd Author: MitchellEm 22/05/2015

29 AUSGRID TOP RYDE TO HOMEBUSH AUSGRID NINA GRAY AVENUE TIMBROL 5 CAVELL AVENUE PARRAMATTA RIVER SHORELINE DRIVE PEAKE AVENUE BLAXLAND ROAD RHODES WALKER STREET CONCORD ROAD 1 GAUTHORPE LLEWELLYN STREET MARQUET STREET Source: Land and Property Information (a division of the Department of Finance and Services) Borehole locations Ausgrid route Cadastre Waste classification General solid waste m [ Figure 2a Borehole location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

30 NINA GRAY AVENUE SHORELINE DRIVE AUSGRID TOP RYDE TO HOMEBUSH AUSGRID DARLING AVENUE MEREDITH AVENUE PARRAMATTA 6 7 WALKER BLAXLAND 9 BOWDEN STREET LEEDS STREET Source: Land and Property Information (a division of the Department of Finance and Services) Borehole locations Ausgrid route Cadastre Waste classification General solid waste m Figure 2b Borehole location plan [ \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

31 ANGAS STREET AUSGRID TOP RYDE TO HOMEBUSH AUSGRID MEADOW CRESCENT BANK RAILWAY 15C UNDERDALE LANE FARADAY LANE CONSTITUTION ROAD SEE STREET PARRAMATTA RIVER BOWDEN 16 Source: Land and Property Information (a division of the Department of Finance and Services) Borehole locations Ausgrid route Cadastre Waste classification General solid waste Hazardous waste m Figure 2c Borehole location plan [ \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

32 AUSGRID TOP RYDE TO HOMEBUSH AUSGRID ANDERSON LANE MACPHERSON STREET VICTORIA ROAD SEE STREET MACPHERSON LANE BOWDEN STREET SHEPHERD STREET STONE STREET SQUIRE STREET ANGAS STREET ANGAS LANE RICHARD JOHNSON CRESCENT THORN STREET SUTHERLAND AVENUE YERONG STREET Source: Land and Property Information (a division of the Department of Finance and Services) Borehole locations Ausgrid route Cadastre Waste classification General solid waste m [ Figure 2d Borehole location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

33 DEVLIN STREET AUSGRID TOP RYDE TO HOMEBUSH AUSGRID VICTORIA ROAD WILLANDRA STREET WANDOO 23 YERONG STREET BELMORE 24 MORRISON 27 REGENT 22 SUTHERLAND AVENUE SUTTOR AVENUE CHURCH STREET SIMPSON STREET THISTLE STREET SMALL STREET Source: Land and Property Information (a division of the Department of Finance and Services) Borehole locations Ausgrid route Cadastre Waste classification General solid waste m [ Figure 2e Borehole location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

34 AUSGRID TOP RYDE TO HOMEBUSH AUSGRID REGENT STREET WANDOO AVENUE EAGLE STREET HATTON LANE HATTON STREET WILLIAM LANE GLADSTONE AVENUE COWELL STREET VICTORIA MORRISON ROAD FERNLEIGH CLOSE NOTTINGHAM LINLEY WAY SAN STEFANO PLACE BOULTON STREET Source: Land and Property Information (a division of the Department of Finance and Services) 2012 PLACE O'REGAN Borehole locations Ausgrid route Cadastre Waste classification General solid waste m [ Figure 2f Borehole location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

35 AUSGRID TOP RYDE TO HOMEBUSH AUSGRID WATT AVENUE CRESCENT AVENUE BLAXLAND ROAD ARGYLE AVENUE RYDE GARDENER BUFFALO ROAD O'REGAN AVENUE AVENUE MA ZE TURNER AVENUE CLAYTON STREET KELLS ROAD VICTORIA ROAD Source: Land and Property Information (a division of the Department of Finance and Services) 2012 RATCLIFFE Borehole locations Ausgrid route Cadastre Waste classification General solid waste m [ Figure 2g Borehole location plan \\APSYDFIL03\proj\A\Ausgrid\ A_CLM_NSW_TOP_RYDE_TO_HOMEBUSH\10_GIS\Projects\_Drawings_Figures_Sketches\ A_GIS_F002_A2.mxd Author: MitchellEm 14/08/2015

36 Appendix B Tables

37 Table 1 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - TRH/BTEXN compounds TRH BTEX C6 - C9 Fraction C10 - C14 Fraction C15 - C28 Fraction C29-C36 Fraction +C10 - C36 (Sum of total) TPH C6-C10 C6 - C10 Fraction minus BTEX (F1) C10 - C16 Fraction TRH >C10-C16 less Naphthalene (F2) C16 - C34 Fraction C34 - C40 Fraction C10 - C40 Fraction (Sum) Benzene Toluene Ethylbenzene Xylene (m & p) Xylene (o) Xylene Total Total BTEX mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion NL - NL NL NL - - NL - CRC CARE (2011) Table B4 Soil HSLs for direct contact , ,000 12, ,000 85, ,000 - NSW 2014 General Solid Waste (CT1) , NSW 2014 General Solid Waste (TCLP1) NSW 2014 General Solid Waste (SCC1) NSW 2014 Restricted Solid Waste (CT1) , NSW 2014 Restricted Solid Waste (TCLP1) NSW 2014 Restricted Solid Waste (SSC1) Field ID Location Depth Date SB1_0.5 SB /02/2015 <10 < < <10 <10 <50 < < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB2_1.0 SB2 1 18/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB3_0.2 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB3A_0.5 SB3A /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 DUP06 SB3A /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 TRIP06 SB3A /07/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - SB4_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB5_0.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 DUP02 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 TRIP02 SB /02/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - SB6_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB7_1.0 SB7 1 19/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB8_0.6 SB /02/2015 <10 < <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB8A_0.5 SB8A /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB8B_0.5 SB8B /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB9_0.1 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB10_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB11_1.0 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB12_0.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB13_0.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB14_0.25 SB /02/2015 <10 < <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB15_0.25 SB /02/2015 < <10 < <1 <1 <1 <1 <1 <0.5 <0.2 SB15_0.5 SB /02/ SB15C_0.5 SB15C /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB15D_0.5 SB15C /07/2015 <10 <50 <100 <100 <50 <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB16_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB17_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB18_1.0 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB19_1.0 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 DUP04 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 Trip04 SB /02/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - SB20_0.2 SB /02/2015 <10 < <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB21_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB22_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB23_0.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB24_0.16 SB /02/2015 <10 < <10 <10 <50 < <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB25_1.5 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB26_1.5 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB27_1.0 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB28_0.5 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB29_1.0 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB30_1.0 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB31_0.5 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB32_0.2 SB /05/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB34_1.0 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB35_0.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 SB36_0.2 SB /02/2015 <10 < <10 <10 <50 < <0.2 <0.5 < SB37_1.5 SB /02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 1 Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

38 Table 2 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - PAHs and PCBs PAH PCB Acenaphthene Acenaphthylene Anthracene Benz(a)anthracene Benzo(a) pyrene Benzo(a) pyrene TCLP Benzo(a)pyrene TEQ (zero) Benzo(b)&(k)fluoranthene Benzo(b&j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-c,d)pyrene Naphthalene Phenanthrene Pyrene Polycylic aromatic hydrocarbons EPA448 PCBs (Sum of total) mg/kg mg/kg mg/kg mg/kg mg/kg mg/l mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion NL CRC CARE (2011) Table B4 Soil HSLs for direct contact , NSW 2014 General Solid Waste (CT1) NSW 2014 General Solid Waste (TCLP1) NSW 2014 General Solid Waste (SCC1) NSW 2014 Restricted Solid Waste (CT1) NSW 2014 Restricted Solid Waste (TCLP1) NSW 2014 Restricted Solid Waste (SSC1) Field ID Location Depth Date SB1_0.5 SB /02/2015 <0.5 <0.5 < <0.5 < < <0.5 <0.5 < <0.1 SB2_1.0 SB2 1 18/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB3_0.2 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB3A_0.5 SB3A /07/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP06 SB3A /07/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 TRIP06 SB3A /07/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 SB4_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB5_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP02 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 TRIP02 SB /02/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 SB6_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB7_1.0 SB7 1 19/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB8_0.6 SB /02/2015 <0.5 < < < < <0.1 SB8A_0.5 SB8A /07/2015 <0.5 <0.5 < < < <0.5 <0.5 < < <0.1 SB8B_0.5 SB8B /07/2015 <0.5 <0.5 < < <0.5 <0.5 <0.5 < <0.1 SB9_0.1 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB10_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB11_1.0 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB12_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB13_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB14_0.25 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB15_0.25 SB /02/ <0.1 SB15_0.5 SB /02/ SB15C_0.5 SB15C /07/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB15D_0.5 SB15C /07/ < <0.1 SB16_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB17_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB18_1.0 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB19_1.0 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP04 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 Trip04 SB /02/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 SB20_0.2 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB21_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB22_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB23_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB24_0.16 SB /02/2015 < < < < < <0.1 SB25_1.5 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB26_1.5 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB27_1.0 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB28_0.5 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB29_1.0 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB30_1.0 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB31_0.5 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB32_0.2 SB /05/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB34_1.0 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB35_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 SB36_0.2 SB /02/2015 <0.5 <0.5 < <0.5 - < <0.5 < < <0.5 <0.5 < <0.1 SB37_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 - <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 1 Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

39 Table 3 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - Metals and asbestos Metals mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion 5 CRC CARE (2011) Table B4 Soil HSLs for direct contact 4 NSW 2014 General Solid Waste (CT1) 1 NSW 2014 General Solid Waste (TCLP1) 2 NSW 2014 General Solid Waste (SCC1) 3 NSW 2014 Restricted Solid Waste (CT1) 1 NSW 2014 Restricted Solid Waste (TCLP1) 2 NSW 2014 Restricted Solid Waste (SSC1) 3 Arsenic Cadmium Chromium Copper Lead Mercury Nickel Nickel TCLP Zinc Asbestos Field ID Location Depth Date SB1_0.5 SB /02/ < < ND SB2_1.0 SB2 1 18/02/2015 <5 < <0.1 <2 - <5 ND SB3_0.2 SB /02/2015 <5 < < ND SB3A_0.1 SB3A /07/2015 <5 < SB3A_0.3 SB3A /07/2015 <5 < < < SB3A_0.3 SB3A /07/ SB3A_0.3 SB3A /07/ < SB3A_0.3 SB3A /07/ SB3A_0.5 SB3A /07/ < < < DUP06 SB3A /07/ < < TRIP06 SB3A /07/ < < SB3A_0.5 SB3A /07/ < SB3A_0.5 SB3A /07/ SB3A_0.5 SB3A /07/ SB3A_0.7 SB3A /07/ < SB3A_1.0 SB3A 1 15/07/2015 <5 < SB4_1.5 SB /02/2015 <5 < ND SB5_0.5 SB /02/ < < ND DUP02 SB /02/2015 <5 < ND TRIP02 SB /02/ < < SB5A_0.5 SB5A /07/2015 <5 < <0.1 <2 <5 - SB5A_0.5 SB5A /07/ SB5A_0.5 SB5A /07/ SB5A_0.5 SB5A /07/ SB5_1.0 SB5A 1 15/07/ < < SB5_1.0 SB5A 1 15/07/ SB5_1.0 SB5A 1 15/07/ SB5_1.0 SB5A 1 15/07/ SB5A_1.5 SB5A /07/2015 <5 < <2-5 - SB6_1.5 SB /02/ < ND SB7_1.0 SB7 1 19/02/ < <2 - <5 ND SB8_0.6 SB /02/ < ND SB8A_0.5 SB8A /07/2015 <5 < < ND SB8B_0.5 SB8B /07/ < < < ND SB9_0.1 SB /02/2015 <5 < <0.1 <2-30 ND SB10_1.5 SB /02/2015 <5 < <0.1 <2-12 ND SB11_1.0 SB /02/2015 <5 < < ND SB12_0.5 SB /02/2015 <5 < < ND SB13_0.5 SB /02/2015 <5 < < ND SB14_0.25 SB /02/2015 <5 < <5 < ND SB15_0.25 SB /02/2015 <5 < < ND SB15_0.5 SB /02/ SB15C_0.5 SB15C /07/2015 <5 < < SB15D_0.5 SB15C /07/2015 <5 < < SB16_1.5 SB /02/ <1 32 <5 11 <0.1 <2 - <5 ND SB17_1.5 SB /02/2015 <5 <1 44 <5 <5 <0.1 <2 - <5 ND SB18_1.0 SB /02/ <1 40 <5 9 <0.1 <2 - <5 ND SB19_1.0 SB /02/ <2 - <5 ND DUP04 SB /02/ <5 22 <0.1 <2 - <5 ND Trip04 SB /02/ < <0.1 <1-2 - SB20_0.2 SB /02/2015 < <5 < < ND SB21_1.5 SB /02/ < <0.1 <2-6 ND SB22_1.5 SB /02/ < < ND SB23_0.5 SB /02/ < ND

40 Table 3 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - Metals and asbestos Metals mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion 5 CRC CARE (2011) Table B4 Soil HSLs for direct contact 4 NSW 2014 General Solid Waste (CT1) 1 NSW 2014 General Solid Waste (TCLP1) 2 NSW 2014 General Solid Waste (SCC1) 3 NSW 2014 Restricted Solid Waste (CT1) 1 NSW 2014 Restricted Solid Waste (TCLP1) 2 NSW 2014 Restricted Solid Waste (SSC1) 3 Arsenic Cadmium Chromium Copper Lead Mercury Nickel Nickel TCLP Zinc Asbestos Field ID Location Depth Date SB24_0.16 SB /02/2015 <5 < ND SB25_1.5 SB /05/2015 <5 < <0.1 <2-18 ND SB26_1.5 SB /05/ < ND SB27_1.0 SB /05/ < ND SB28_0.5 SB /05/ < ND SB29_1.0 SB /05/ < < ND SB30_1.0 SB /02/ <0.1 <2-9 ND SB31_0.5 SB /05/ < < ND SB32_0.2 SB /05/2015 <5 < < < ND SB34_1.0 SB /02/ < ND SB35_0.5 SB /02/ <0.1 <2 - <5 ND SB36_0.2 SB /02/2015 <5 < < ND SB37_1.5 SB /02/ <0.1 <2-6 ND 1 Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available ND = no asbestos detected

41 Table 4 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - OCPs and OPPs OCP OPP 4,4-DDE a-bhc Aldrin Aldrin + Dieldrin b-bhc chlordane Chlordane (cis) Chlordane (trans) d-bhc DDD DDT DDT+DDE+DDD Dieldrin Endosulfan Endosulfan I Endosulfan II Endosulfan sulphate Endrin Endrin aldehyde Endrin ketone g-bhc (Lindane) Heptachlor Heptachlor epoxide Hexachlorobenzene Methoxychlor Azinophos methyl Bromophos-ethyl Carbophenothion Chlorfenvinphos Chlorpyrifos Chlorpyrifos-methyl Demeton-S-methyl Diazinon Dichlorvos Dimethoate Ethion mg/kg mg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg mg/kg mg/kg µg/kg µg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion CRC CARE (2011) Table B4 Soil HSLs for direct contact NSW 2014 General Solid Waste (CT1) NSW 2014 General Solid Waste (TCLP1) NSW 2014 General Solid Waste (SCC1) NSW 2014 Restricted Solid Waste (CT1) NSW 2014 Restricted Solid Waste (TCLP1) NSW 2014 Restricted Solid Waste (SSC1) Field ID Location Depth Date SB1_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB2_1.0 SB2 1 18/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB3_0.2 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB3A_0.5 SB3A /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 DUP06 SB3A /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 TRIP06 SB3A /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB4_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB5_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 DUP02 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 TRIP02 SB /02/2015 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <100 - <0.1 <0.1 <0.1 <100 <0.1 <0.1 < <0.1 <0.1 - <0.1 <0.1 <0.1 <0.1 SB6_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB7_1.0 SB7 1 19/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB8_0.6 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB8A_0.5 SB8A /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB8B_0.5 SB8B /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB9_0.1 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB10_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB11_1.0 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB12_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB13_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB14_0.25 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB15_0.25 SB /02/2015 <0.25 <0.25 <0.25 <0.25 <0.25 <250 <0.25 <0.25 <0.25 <0.25 <1 <0.25 <0.25 <250 <0.25 <0.25 <0.25 <0.25 <250 <250 <0.25 <0.25 <0.25 <250 <1 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 SB15_0.5 SB /02/ SB15C_0.5 SB15C /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB15D_0.5 SB15C /07/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB16_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB17_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB18_1.0 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB19_1.0 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 DUP04 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Trip04 SB /02/2015 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <100 - <0.1 <0.1 <0.1 <100 <0.1 <0.1 < <0.1 <0.1 - <0.1 <0.1 <0.1 <0.1 SB20_0.2 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB21_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB22_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB23_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB24_0.16 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB25_1.5 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB26_1.5 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB27_1.0 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB28_0.5 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB29_1.0 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB30_1.0 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB31_0.5 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB32_0.2 SB /05/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB34_1.0 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB35_0.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 SB36_0.2 SB /02/2015 <0.25 <0.25 <0.25 <0.25 <0.25 <250 <0.25 <0.25 <0.25 <0.25 <1 <0.25 <0.25 <250 <0.25 <0.25 <0.25 <0.25 <250 <250 <0.25 <0.25 <0.25 <250 <1 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 SB37_1.5 SB /02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

42 Table 4 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - OCPs and OPPs OPP EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion 5 CRC CARE (2011) Table B4 Soil HSLs for direct contact 4 NSW 2014 General Solid Waste (CT1) 1 NSW 2014 General Solid Waste (TCLP1) 2 NSW 2014 General Solid Waste (SCC1) 3 NSW 2014 Restricted Solid Waste (CT1) 1 NSW 2014 Restricted Solid Waste (TCLP1) 2 NSW 2014 Restricted Solid Waste (SSC1) 3 Fenamiphos Fenitrothion Fenthion Malathion Methyl parathion Monocrotophos Parathion Pirimphos-ethyl Prothiofos Ronnel mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Field ID Location Depth Date SB1_0.5 SB /02/2015 SB2_1.0 SB2 1 18/02/2015 SB3_0.2 SB /02/2015 SB3A_0.5 SB3A /07/2015 DUP06 SB3A /07/2015 TRIP06 SB3A /07/2015 SB4_1.5 SB /02/2015 SB5_0.5 SB /02/2015 DUP02 SB /02/2015 TRIP02 SB /02/2015 SB6_1.5 SB /02/2015 SB7_1.0 SB7 1 19/02/2015 SB8_0.6 SB /02/2015 SB8A_0.5 SB8A /07/2015 SB8B_0.5 SB8B /07/2015 SB9_0.1 SB /02/2015 SB10_1.5 SB /02/2015 SB11_1.0 SB /02/2015 SB12_0.5 SB /02/2015 SB13_0.5 SB /02/2015 SB14_0.25 SB /02/2015 SB15_0.25 SB /02/2015 SB15_0.5 SB /02/2015 SB15C_0.5 SB15C /07/2015 SB15D_0.5 SB15C /07/2015 SB16_1.5 SB /02/2015 SB17_1.5 SB /02/2015 SB18_1.0 SB /02/2015 SB19_1.0 SB /02/2015 DUP04 SB /02/2015 Trip04 SB /02/2015 SB20_0.2 SB /02/2015 SB21_1.5 SB /02/2015 SB22_1.5 SB /02/2015 SB23_0.5 SB /02/2015 SB24_0.16 SB /02/2015 SB25_1.5 SB /05/2015 SB26_1.5 SB /05/2015 SB27_1.0 SB /05/2015 SB28_0.5 SB /05/2015 SB29_1.0 SB /05/2015 SB30_1.0 SB /02/2015 SB31_0.5 SB /05/2015 SB32_0.2 SB /05/2015 SB34_1.0 SB /02/2015 SB35_0.5 SB /02/2015 SB36_0.2 SB /02/2015 SB37_1.5 SB /02/2015 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.1 - < < <0.1 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.25 <0.25 <1 <1 <1 <0.25 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.1 - < < <0.1 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < < <0.25 <0.25 <1 <1 <1 <0.25 < < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < Contaminant threshold values (CT1 and CT2) for classifying waste by chemical a 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chem 3 These chemicals are assessed using the specific contaminant concentrations (S 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

43 Table 5 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - VHCs VHCs 1,1,1,2-tetrachloroethane 1,1,1-trichloroethane 1,1,2,2-tetrachloroethane 1,1,2-trichloroethane 1,1-dichloroethane 1,1-dichloroethene 1,1-dichloropropene 1,2,3-trichlorobenzene 1,2,3-trichloropropane 1,2,4-trichlorobenzene 1,2-dibromo-3-chloropropane 1,2-dibromoethane mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion 5 CRC CARE (2011) Table B4 Soil HSLs for direct contact 4 NSW 2014 General Solid Waste (CT1) 1 NSW 2014 General Solid Waste (TCLP1) 2 NSW 2014 General Solid Waste (SCC1) 3 NSW 2014 Restricted Solid Waste (CT1) 1 NSW 2014 Restricted Solid Waste (TCLP1) 2 NSW 2014 Restricted Solid Waste (SSC1) 3 1,2-dichlorobenzene 1,2-dichloroethane 1,2-dichloropropane 1,3-dichlorobenzene 1,3-dichloropropane ,4-dichlorobenzene 2,2-dichloropropane 2-chlorotoluene 4-chlorotoluene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene Field ID Location Depth Date SB1_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB2_1.0 SB2 1 18/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB3_0.2 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB4_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB5_0.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 DUP02 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 TRIP02 SB /02/2015 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 SB6_1.5 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB7_1.0 SB7 1 19/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB8_0.6 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB9_0.1 SB /02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 SB10_1.5 SB /02/ SB11_1.0 SB /02/ SB12_0.5 SB /02/ SB13_0.5 SB /02/ SB14_0.25 SB /02/ SB15_0.25 SB /02/ SB15_0.5 SB /02/ SB16_1.5 SB /02/ SB17_1.5 SB /02/ SB18_1.0 SB /02/ SB19_1.0 SB /02/ DUP04 SB /02/ Trip04 SB /02/ SB20_0.2 SB /02/ SB21_1.5 SB /02/ SB22_1.5 SB /02/ SB23_0.5 SB /02/ SB24_0.16 SB /02/ SB25_1.5 SB /05/ SB26_1.5 SB /05/ SB27_1.0 SB /05/ SB28_0.5 SB /05/ SB29_1.0 SB /05/ SB30_1.0 SB /02/ SB31_0.5 SB /05/ SB32_0.2 SB /05/ SB34A_1.0 SB /02/ SB35A_0.5 SB /02/ SB36A_0.2 SB /02/ SB37_1.5 SB /02/ Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

44 Table 5 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - VHCs VOC EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion 5 CRC CARE (2011) Table B4 Soil HSLs for direct contact 4 NSW 2014 General Solid Waste (CT1) 1 NSW 2014 General Solid Waste (TCLP1) 2 NSW 2014 General Solid Waste (SCC1) 3 NSW 2014 Restricted Solid Waste (CT1) 1 NSW 2014 Restricted Solid Waste (TCLP1) 2 NSW 2014 Restricted Solid Waste (SSC1) 3 cis-1,4-dichloro-2-butene Dibromomethane Dichlorodifluoromethane Hexachlorobutadiene Iodomethane Pentachloroethane TCE mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Tetrachloroethene trans-1,2-dichloroethene trans-1,3-dichloropropene trans-1,4-dichloro-2-butene Trichlorofluoromethane Vinyl chloride Field ID Location Depth Date SB1_0.5 SB /02/2015 SB2_1.0 SB2 1 18/02/2015 SB3_0.2 SB /02/2015 SB4_1.5 SB /02/2015 SB5_0.5 SB /02/2015 DUP02 SB /02/2015 TRIP02 SB /02/2015 SB6_1.5 SB /02/2015 SB7_1.0 SB7 1 19/02/2015 SB8_0.6 SB /02/2015 SB9_0.1 SB /02/2015 SB10_1.5 SB /02/2015 SB11_1.0 SB /02/2015 SB12_0.5 SB /02/2015 SB13_0.5 SB /02/2015 SB14_0.25 SB /02/2015 SB15_0.25 SB /02/2015 SB15_0.5 SB /02/2015 SB16_1.5 SB /02/2015 SB17_1.5 SB /02/2015 SB18_1.0 SB /02/2015 SB19_1.0 SB /02/2015 DUP04 SB /02/2015 Trip04 SB /02/2015 SB20_0.2 SB /02/2015 SB21_1.5 SB /02/2015 SB22_1.5 SB /02/2015 SB23_0.5 SB /02/2015 SB24_0.16 SB /02/2015 SB25_1.5 SB /05/2015 SB26_1.5 SB /05/2015 SB27_1.0 SB /05/2015 SB28_0.5 SB /05/2015 SB29_1.0 SB /05/2015 SB30_1.0 SB /02/2015 SB31_0.5 SB /05/2015 SB32_0.2 SB /05/2015 SB34A_1.0 SB /02/2015 SB35A_0.5 SB /02/2015 SB36A_0.2 SB /02/2015 SB37_1.5 SB /02/2015 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 - <1 <1 <1 - - <1 <1 <1 <1 - <1 <1 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 < Contaminant threshold values (CT1 and CT2) for classifying waste by chemical a 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chem 3 These chemicals are assessed using the specific contaminant concentrations (SC 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

45 Table 6 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW Soil analytical results - Dioxins and furans Dioxins Furans HpCDD HxCDD HxCDD HxCDD PeCDD 2,3,7,8-TCDD (dioxin) Hepta-Dioxins Hexa-Dioxins OCDD Octa-Dioxin Penta-Dioxins Tetra-Dioxins Total TEQ I-TEQ1 (zero) Total TEQ I-TEQ2 (0.5 LOR) Total TEQ I-TEQ3 (LOR) Total TEQ WHO-TEQ1 (zero) Total TEQ WHO-TEQ2 (0.5 LOR) Total TEQ WHO-TEQ3 (LOR) HpCDF HpCDF HxCDF HxCDF HxCDF PeCDF HxCDF PeCDF 2378-TCDF Hepta-Furans Hexa-Furans OCDF Octa-Furan Penta-Furans Tetra-Furans pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g EQL CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion CRC CARE (2011) Table B4 Soil HSLs for direct contact NSW 2014 General Solid Waste (CT1) NSW 2014 General Solid Waste (TCLP1) NSW 2014 General Solid Waste (SCC1) NSW 2014 Restricted Solid Waste (CT1) NSW 2014 Restricted Solid Waste (TCLP1) NSW 2014 Restricted Solid Waste (SSC1) Field ID Location Depth Date SB1_0.5 SB /02/ < < < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < <32.3 <7.4 SB2_1.0 SB2 1 18/02/ < <2.5 < <4.9 < <2.5 < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <7.4 <4.9 <4.9 < SB3_0.2 SB /02/ <2.5 <2.5 <2.5 < < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < <2.5 <0.5 SB4_1.5 SB /02/ < <2.5 < , < <2.5 < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < <2.5 <4.9 < SB5_0.5 SB /02/ < < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < < DUP02 SB /02/ < < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < <24.5 <5.9 SB6_1.5 SB /02/ <2.5 < <2.5 < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <5 < SB7_1.0 SB7 1 19/02/ < , <2.5 < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <7.4 <2.5 <4.9 <9.8 <2.9 SB8_0.6 SB /02/ < < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < < SB9_0.1 SB /02/ < <2.5 < < < <2.5 <2.5 <2.5 <2.5 < < Contaminant threshold values (CT1 and CT2) for classifying waste by chemical assessment without leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 2 Contaminant threshold values (TCLP1 and TCLP2) for classifying waste by chemical assessment with leaching (TCLP) test - NSW EPA (2014) Waste Classification Guidelines 3 These chemicals are assessed using the specific contaminant concentrations (SCC1 and SCC2) 4 CRC CARE (2011) Table B4 Soil HSLs for direct contact (mg/kg) 5 CRC CARE (2011) Table B3 Soil HSLs for vapour intrusion (mg/kg) - no assessment criteria available

46 Table 7 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - TRH/BTEXN compounds TRH BTEX C6 - C9 Fraction C10 - C14 Fraction C15 - C28 Fraction C29-C36 Fraction +C10 - C36 (Sum of total) TPH C6-C10 C6 - C10 Fraction minus BTEX (F1) C10 - C16 Fraction TRH >C10-C16 less Naphthalene (F2) C16 - C34 Fraction C34 - C40 Fraction C10 - C40 Fraction (Sum) Benzene Toluene Ethylbenzene Xylene (m & p) Xylene (o) Xylene Total Total BTEX mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL Field ID Location Date SB5_0.5 SB5 19/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 DUP02 SB5 19/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 RPD (%) SB5_0.5 SB5 19/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 TRIP02 SB5 19/02/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - RPD (%) SB19_1.0 SB19 24/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 Trip04 SB19 24/02/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - RPD (%) DUP04 SB19 24/02/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 Trip04 SB19 24/02/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - RPD (%) SB3A_0.5 SB3A 15/07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 DUP06 SB3A 15/07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 RPD (%) SB3A_0.5 SB3A 15/07/2015 <10 <50 <100 <100 <50 <10 <10 <50 <50 <100 <100 <50 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 TRIP06 SB5 15/07/2015 <25 <50 <100 <100 - <25 <25 <50 <50 <100 <100 - <0.2 <0.5 <1 <2 <1 - - RPD (%)

47 Table 8 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - PAHs and PCBs PAH PCB Acenaphthene Acenaphthylene Anthracene Benz(a)anthracene Benzo(a) pyrene Benzo(a) pyrene TCLP Benzo(a)pyrene TEQ (half LOR) Benzo(a)pyrene TEQ (LOR) Benzo(b)&(k)fluoranthene Benzo(b&j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-c,d)pyrene Naphthalene Phenanthrene Pyrene PCBs (Sum of total) mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL Field ID Location Date SB5_0.5 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP02 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 RPD (%) SB5_0.5 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 TRIP02 SB5 19/02/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 RPD (%) SB19_1.0 SB19 24/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP04 SB19 24/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 RPD (%) SB19_1.0 SB19 24/02/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 Trip04 SB19 24/02/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 RPD (%) SB3A_0.5 SB3A 15/07/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 DUP06 SB3A 15/07/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 RPD (%) SB3A_0.5 SB3A 15/07/2015 <0.5 <0.5 <0.5 <0.5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.1 TRIP06 SB5 15/07/2015 <0.1 <0.1 <0.1 <0.1 < <0.5 <0.2 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 RPD (%)

48 Table 9 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - Metals and asbestos Metals Arsenic Cadmium Chromium Copper Lead Mercury Nickel Zinc mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL Field ID Location Date SB5_0.5 SB5 19/02/ < < DUP02 SB5 19/02/2015 <5 < RPD (%) 46% - 5% 123% 97% 0% 165% 146% SB5_0.5 SB5 19/02/ < < TRIP02 SB5 19/02/ < < RPD (%) 29% - 5% 42% 4% - 86% 86% SB19_1.0 SB19 24/02/ <2 <5 DUP04 SB19 24/02/ <5 22 <0.1 <2 <5 RPD (%) 25% 67% 23% 46% 13% SB19_1.0 SB19 24/02/ <2 <5 Trip04 SB19 24/02/ < <0.1 <1 2 RPD (%) 55% 133% 42% 12% 0% % SB3A_0.5 SB3A 15/07/ < < DUP06 SB3A 15/07/ < RPD (%) 18% - 6% 9% 0% - 15% 0% SB3A_0.5 SB3A 15/07/ < < TRIP06 SB5 15/07/ < < RPD (%) 29% - 0% 15% 11% - 15% 11%

49 Table 10 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - OCPs and OPPs OCP 4,4-DDE a-bhc Aldrin Aldrin + Dieldrin b-bhc chlordane Chlordane (cis) Chlordane (trans) d-bhc DDD DDT DDT+DDE+DDD Dieldrin Endosulfan Endosulfan I Endosulfan II Endosulfan sulphate Endrin Endrin aldehyde Endrin ketone g-bhc (Lindane) Heptachlor Heptachlor epoxide Hexachlorobenzene Methoxychlor mg/kg mg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg mg/kg mg/kg µg/kg µg/kg mg/kg mg/kg mg/kg µg/kg mg/kg EQL Field ID Location Date SB5_0.5 SB5 19/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 DUP02 SB5 19/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 RPD (%) SB5_0.5 SB5 19/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 TRIP02 SB5 19/02/2015 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <100 - <0.1 <0.1 <0.1 <100 <0.1 RPD (%) SB19_1.0 SB19 24/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 DUP04 SB19 24/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 RPD (%) SB19_1.0 SB19 24/02/2015 <0.05 <0.05 <0.05 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <0.2 <0.05 <0.05 <50 <0.05 <0.05 <0.05 <0.05 <50 <50 <0.05 <0.05 <0.05 <50 <0.2 Trip04 SB19 24/02/2015 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <0.1 - <0.1 - <0.1 <0.1 <0.1 <0.1 <100 - <0.1 <0.1 <0.1 <100 <0.1 RPD (%)

50 Table 10 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - OCPs and OPPs OPP EQL Azinophos methyl Bromophos-ethyl Carbophenothion Chlorfenvinphos Chlorpyrifos Chlorpyrifos-methyl Demeton-S-methyl Diazinon Dichlorvos Dimethoate Ethion Fenamiphos Fenitrothion Fenthion Malathion Methyl parathion Monocrotophos Parathion Pirimphos-ethyl Prothiofos Ronnel mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Field ID Location Date SB5_0.5 SB5 19/02/2015 DUP02 SB5 19/02/2015 RPD (%) SB5_0.5 SB5 19/02/2015 TRIP02 SB5 19/02/2015 RPD (%) SB19_1.0 SB19 24/02/2015 DUP04 SB19 24/02/2015 RPD (%) SB19_1.0 SB19 24/02/2015 Trip04 SB19 24/02/2015 RPD (%) <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.1 < <0.1 <0.1 - <0.1 <0.1 <0.1 <0.1 - <0.1 - < < < <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 < <0.05 <0.05 <0.2 <0.2 <0.2 <0.05 < <0.1 < <0.1 <0.1 - <0.1 <0.1 <0.1 <0.1 - <0.1 - < < <

51 Table 11 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - VOCs VOC 1,1,1,2-tetrachloroethane 1,1,1-trichloroethane 1,1,2,2-tetrachloroethane 1,1,2-trichloroethane 1,1-dichloroethane 1,1-dichloroethene 1,1-dichloropropene 1,2,3-trichlorobenzene 1,2,3-trichloropropane 1,2,4-trichlorobenzene 1,2-dibromo-3-chloropropane 1,2-dibromoethane 1,2-dichlorobenzene 1,2-dichloroethane 1,2-dichloropropane 1,3-dichlorobenzene 1,3-dichloropropane 1,4-dichlorobenzene 2,2-dichloropropane 2-chlorotoluene 4-chlorotoluene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene cis-1,4-dichloro-2-butene Dibromomethane Dichlorodifluoromethane Hexachlorobutadiene mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg EQL Field ID Location Date SB5_0.5 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <5 <0.5 DUP02 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <5 <0.5 RPD (%) SB5_0.5 SB5 19/02/2015 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 <5 <0.5 <0.5 <0.5 <5 <0.5 <5 <0.5 <0.5 <0.5 <0.5 <5 <0.5 TRIP02 SB5 19/02/2015 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 - <1 <1 <1 RPD (%)

52 Table 11 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - VOCs VOC EQL Iodomethane Pentachloroethane TCE Tetrachloroethene trans-1,2-dichloroethene trans-1,3-dichloropropene trans-1,4-dichloro-2-butene Trichlorofluoromethane Vinyl chloride mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Field ID Location Date SB5_0.5 SB5 19/02/2015 DUP02 SB5 19/02/2015 RPD (%) SB5_0.5 SB5 19/02/2015 TRIP02 SB5 19/02/2015 RPD (%) <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 < <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5 <5 - - <1 <1 <1 <1 - <1 <

53 Table 12 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - Dioxins and furans Dioxins Furans HpCDD HxCDD HxCDD HxCDD PeCDD 2,3,7,8-TCDD (dioxin) Hepta-Dioxins Hexa-Dioxins OCDD Octa-Dioxin Penta-Dioxins Tetra-Dioxins Total TEQ I-TEQ1 (zero) Total TEQ I-TEQ2 (0.5 LOR) Total TEQ I-TEQ3 (LOR) Total TEQ WHO-TEQ1 (zero) Total TEQ WHO-TEQ2 (0.5 LOR) Total TEQ WHO-TEQ3 (LOR) HpCDF HpCDF HxCDF HxCDF HxCDF PeCDF HxCDF PeCDF 2378-TCDF Hepta-Furans Hexa-Furans OCDF Octa-Furan Penta-Furans Tetra-Furans pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g pg/g EQL Field ID Location Date SB5_0.5 SB5 19/02/ < < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < < DUP02 SB5 19/02/ < < , < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < < <24.5 <5.9 RPD (%) 0% - 10% 4% - 3% 2% 6% 7% 7% - 15% 7% 6% 6% 6% 6% 5% 34% % - 26% 26% - -

54 Table 13 Waste classification, contamination assessment and geotechnical investigation Top Ryde to Homebush cable project, NSW QA/QC Soil analytical results - Rinsate and trip blank analysis TRH BTEX PAH EQL TPH C6-C10 C10 - C16 Fraction C16 - C34 Fraction C34 - C40 Fraction C10 - C40 Fraction (Sum) C6 - C10 Fraction minus BTEX (F1) TRH >C10-C16 less Naphthalene (F2) Benzene Toluene Ethylbenzene Xylene (m & p) Xylene (o) Xylene Total Total BTEX Acenaphthene Acenaphthylene µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l ug/l Anthracene Benz(a)anthracene Benzo(a) pyrene Benzo(a)pyrene TEQ (zero) Benzo(g,h,i)perylene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-c,d)pyrene Naphthalene Phenanthrene Pyrene Total polycylic aromatic hydrocarbons Field ID Date sampled RB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 < < RB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 < < RB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 RB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 RB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /02/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 RB_ /07/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <0.5 <0.5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 TB_ /07/2015 <20 <100 <100 <100 <100 <20 <100 <1 <2 <2 <2 <2 <2 < <

55 Appendix C Laboratory reports

56

57

58

59 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 4 Order number : C-O-C number : 75646, & Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : RHODES Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 20-FEB-2015 Issue Date : 23-FEB :26 Requested Due Date 02-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 02-MAR-2015 : Carrier Temperature : 19.6'C - Ice bricks present : 2 ESKIES No. of samples received : 39 : N/A No. of samples analysed : 18 Sample containers do not comply to pretreatment / preservation standards (AS, APHA, USEPA). Please refer to the Sample Container(s)/Preservation Non-Compliance Log at the end of this report for details. TOC analysis will be conducted by ALS Brisbane Asbestos analysis will be conducted by ALS Newcastle. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Sample(s) requiring volatile organic compound analysis received in airtight containers (ZHE). Dioxin analysis split into ES Sample TRIP02 forward to Envirolab Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

60 Issue Date Page Work Order : : : 23-FEB :26 : 2 of 4 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. Method sample ID EA200 : Asbestos Identification in Soils SB2_1.0 SB9_0.1 SB4_1.5 DUP02 SB3_0.2 Sample Container Received - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS Preferred Sample Container for Analysis - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID ES FEB :00 SB1_0.1 (On Hold) SOIL No analysis requested SOIL - EA002 ph (1:5) SOIL - EA200 Asbestos Identification in Soils - SOIL - ED008 Def Exchangeable Cations with SOIL - EG005T (solids) Total Metals by ICP-AES SOIL - EP003 Total Organic Carbon (TOC ) in Soil SOIL - EP074DEFG (solids) VOC - Fumigants, Hal Aliphatics, Hal SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals ES FEB :00 SB1_0.5 ES FEB :00 DUP01 ES FEB :00 TRIP01 ES FEB :00 SB1_1.4 ES FEB :00 SB2_0.1 ES FEB :00 SB2_0.5 ES FEB :00 SB2_1.0 ES FEB :00 SB2_1.5 ES FEB :00 SB8_0.1 ES FEB :00 SB8_0.6 ES FEB :00 SB8_0.8 ES FEB :00 SB8_1.5 ES FEB :00 SB9_0.1 ES FEB :00 SB9_0.5 ES FEB :00 SB4_0.1 ES FEB :00 SB4_0.5 ES FEB :00 SB4_1.5 ES FEB :00 SB5_0.1 ES FEB :00 SB5_0.5 ES FEB :00 DUP02 ES FEB :00 SB5_1.0 ES FEB :00 SB5_1.5 ES FEB :00 SB6_0.5 ES FEB :00 SB6_1.5 ES FEB :00 SB7_0.5 ES FEB :00 SB7_1.0

61 Issue Date Page Work Order : : : 23-FEB :26 : 3 of 4 ES PARSONS BRINCKERHOFF AUST P/L ES FEB :00 SB7_1.5 ES FEB :00 SB3_0.5 (On Hold) SOIL No analysis requested SOIL - EA002 ph (1:5) SOIL - EA200 Asbestos Identification in Soils - SOIL - ED008 Def Exchangeable Cations with SOIL - EG005T (solids) Total Metals by ICP-AES SOIL - EP003 Total Organic Carbon (TOC ) in Soil SOIL - EP074DEFG (solids) VOC - Fumigants, Hal Aliphatics, Hal SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals ES FEB :00 SB3_0.2 ES FEB :00 SB3_1.5 Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - S-18 (NO MOIST) TRH(C6-C9)/BTEXN with No Moisture ES FEB :00 TRIP SPIKE 10 ES FEB :00 TRIP SPIKE 7 ES FEB :00 TSC10-16/2/15 ES FEB :00 TSC 7-16/2/15 Matrix: WATER Laboratory sample ID sampling date / time sample ID WATER - W-04 TRH/BTEXN WATER - W-07 TRH/BTEXN/PAH ES FEB :00 RB_ ES FEB :00 TB_ ES FEB :00 RB_ ES FEB :00 TB_ Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis.

62 Issue Date Page Work Order : : : 23-FEB :26 : 4 of 4 Requested Deliverables ES PARSONS BRINCKERHOFF AUST P/L KELLIE LYNCH - *AU Certificate of Analysis - NATA kelynch@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) kelynch@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT kelynch@pb.com.au - A4 - AU Tax Invoice kelynch@pb.com.au - Chain of Custody (CoC) kelynch@pb.com.au - EDI Format - ENMRG kelynch@pb.com.au - EDI Format - ESDAT kelynch@pb.com.au MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

63 False False Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 25 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : 75646, & Date Samples Received : 20-FEB-2015 Sampler : Issue Date : 02-MAR-2015 Site : RHODES No. of samples received : 39 Quote number : EN/008/14 No. of samples analysed : 18 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Descriptive Results Surrogate Control Limits Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

64 Page : 2 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs. Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero. EA200 Legend EA200 'Am' EA200 'Ch' EA200 'Cr' Amosite (brown asbestos) Chrysotile (white asbestos) Crocidolite (blue asbestos) EA200 'Trace' - Asbestos fibres ("Free Fibres") detected by trace analysis per AS4964. The result can be interpreted that the sample contains detectable 'respirable' asbestos fibres EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended. EA200: As only one sample container was submitted for multiple tests, sub sampling was conducted on samples ES , 014, 018, 021 & 032 prior to Asbestos analysis. As this has the potential to understate detection, results should be scrutinised accordingly and NATA accreditation does not apply to analysis on these samples. EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining. EA200: Negative results for vinyl tiles should be confirmed by an independent analytical technique. ED007 and ED008: When Exchangeable Al is reported from these methods, it should be noted that Rayment & Lyons (2011) suggests Exchange Acidity by 1M KCl (Method 15G1) is a more suitable method for the determination of exchange acidity (H+ + Al3+).

65 Page : 3 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Ankit Joshi Inorganic Chemist Sydney Inorganics Dian Dao Inorganic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Inorganics Sydney Organics Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Shaun Spooner Asbestos Identifier Newcastle - Asbestos Shobhna Chandra Metals Coordinator Sydney Inorganics

66 Page : 4 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 Compound CAS Number sampling date / time LOR Unit 18-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 EA055: Moisture Content Moisture Content 103 C) 1.0 % EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg ES No No No No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- S.SPOONER S.SPOONER S.SPOONER S.SPOONER S.SPOONER EG005T: Total Metals by ICP-AES Arsenic mg/kg 8 <5 7 <5 <5 Cadmium mg/kg <1 <1 <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg 18 <2 19 <2 11 Zinc mg/kg 186 < EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 < < EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Aldrin mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Dieldrin mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDE mg/kg <0.05 <0.05 <0.05 <0.05 <0.05

67 Page : 5 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 18-FEB :00 18-FEB :00 18-FEB :00 18-FEB :00 19-FEB :00 Compound CAS Number LOR Unit ES ES ES ES ES EP068A: Organochlorine Pesticides (OC) - Continued Endrin mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 beta-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDD mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDT mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Prothiofos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 EP074D: Fumigants 2.2-Dichloropropane mg/kg <0.5 <0.5 <0.5 <0.5 < Dichloropropane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5

68 Page : 6 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 18-FEB :00 18-FEB :00 18-FEB :00 18-FEB :00 19-FEB :00 Compound EP074D: Fumigants - Continued cis-1.3-dichloropropylene CAS Number LOR 0.5 Unit mg/kg ES <0.5 ES <0.5 ES <0.5 ES <0.5 ES <0.5 trans-1.3-dichloropropylene mg/kg <0.5 <0.5 <0.5 <0.5 < Dibromoethane (EDB) mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 EP074E: Halogenated Aliphatic Compounds Dichlorodifluoromethane mg/kg <5 <5 <5 <5 <5 Chloromethane mg/kg <5 <5 <5 <5 <5 Vinyl chloride mg/kg <5 <5 <5 <5 <5 Bromomethane mg/kg <5 <5 <5 <5 <5 Chloroethane mg/kg <5 <5 <5 <5 <5 Trichlorofluoromethane mg/kg <5 <5 <5 <5 <5 1.1-Dichloroethene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Iodomethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 trans-1.2-dichloroethene mg/kg <0.5 <0.5 <0.5 <0.5 < Dichloroethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 cis-1.2-dichloroethene mg/kg <0.5 <0.5 <0.5 <0.5 < Trichloroethane mg/kg <0.5 <0.5 <0.5 <0.5 < Dichloropropylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Carbon Tetrachloride mg/kg <0.5 <0.5 <0.5 <0.5 < Dichloroethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Trichloroethene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Dibromomethane mg/kg <0.5 <0.5 <0.5 <0.5 < Trichloroethane mg/kg <0.5 <0.5 <0.5 <0.5 < Dichloropropane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Tetrachloroethene mg/kg <0.5 <0.5 <0.5 <0.5 < Tetrachloroethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 trans-1.4-dichloro-2-butene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 cis-1.4-dichloro-2-butene mg/kg <0.5 <0.5 <0.5 <0.5 < Tetrachloroethane mg/kg <0.5 <0.5 <0.5 <0.5 < Trichloropropane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Pentachloroethane mg/kg <0.5 <0.5 <0.5 <0.5 < Dibromo-3-chloropropane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Hexachlorobutadiene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 EP074F: Halogenated Aromatic Compounds

69 Page : 7 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 18-FEB :00 18-FEB :00 18-FEB :00 18-FEB :00 19-FEB :00 Compound CAS Number LOR Unit ES ES ES ES ES EP074F: Halogenated Aromatic Compounds - Continued Chlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Bromobenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 2-Chlorotoluene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 4-Chlorotoluene mg/kg <0.5 <0.5 <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 < Trichlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 < Trichlorobenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 EP074G: Trihalomethanes Chloroform mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Bromodichloromethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Dibromochloromethane mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Bromoform mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Phenanthrene mg/kg 2.1 < <0.5 <0.5 Anthracene mg/kg <0.5 < <0.5 <0.5 Fluoranthene mg/kg 1.9 < <0.5 <0.5 Pyrene mg/kg 1.6 < <0.5 <0.5 Benz(a)anthracene mg/kg 0.8 < <0.5 <0.5 Chrysene mg/kg 0.7 < <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg 0.7 < <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 < <0.5 <0.5 Benzo(a)pyrene mg/kg 0.6 < <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 < <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 < <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 < <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg 8.4 < <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg 0.8 < <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg

70 Page : 8 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 Compound CAS Number EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued sampling date / time LOR Unit 18-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 <10 <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 <50 <50 C15 - C28 Fraction 100 mg/kg 100 < <100 <100 C29 - C36 Fraction 100 mg/kg <100 < <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg 100 < <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 <10 <10 <10 ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 10 mg/kg ES <10 <10 <10 <10 <10 >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 <50 <50 >C16 - C34 Fraction 100 mg/kg 180 < <100 <100 >C34 - C40 Fraction 100 mg/kg <100 < <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg 180 < <50 <50 ^ >C10 - C16 Fraction minus Naphthalene (F2) 50 mg/kg <50 <50 <50 <50 <50 EP080: BTEXN Benzene mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Toluene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ortho-xylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Naphthalene mg/kg <1 <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP074S: VOC Surrogates

71 Page : 9 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 18-FEB :00 18-FEB :00 18-FEB :00 18-FEB :00 19-FEB :00 Compound EP074S: VOC Surrogates - Continued 1.2-Dichloroethane-D4 CAS Number LOR 0.1 Unit % ES ES ES ES ES Toluene-D % Bromofluorobenzene % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

72 Page : 10 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 Compound CAS Number sampling date / time LOR Unit 19-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 EA055: Moisture Content Moisture Content 103 C) 1.0 % EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg ES No No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- S.SPOONER S.SPOONER S.SPOONER EG005T: Total Metals by ICP-AES Arsenic mg/kg 8 <5 13 Cadmium mg/kg <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg < EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 Aldrin mg/kg <0.05 <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 Dieldrin mg/kg <0.05 <0.05 < `-DDE mg/kg <0.05 <0.05 <0.05

73 Page : 11 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 19-FEB :00 Compound CAS Number LOR Unit ES ES ES ES ES EP068A: Organochlorine Pesticides (OC) - Continued Endrin mg/kg <0.05 <0.05 <0.05 beta-endosulfan mg/kg <0.05 <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 < `-DDD mg/kg <0.05 <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 < `-DDT mg/kg <0.2 <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 Prothiofos mg/kg <0.05 <0.05 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 EP074D: Fumigants 2.2-Dichloropropane mg/kg <0.5 <0.5 < Dichloropropane mg/kg <0.5 <0.5 <0.5

74 Page : 12 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 19-FEB :00 Compound EP074D: Fumigants - Continued cis-1.3-dichloropropylene CAS Number LOR 0.5 Unit mg/kg ES <0.5 ES <0.5 ES ES ES <0.5 trans-1.3-dichloropropylene mg/kg <0.5 <0.5 < Dibromoethane (EDB) mg/kg <0.5 <0.5 <0.5 EP074E: Halogenated Aliphatic Compounds Dichlorodifluoromethane mg/kg <5 <5 <5 Chloromethane mg/kg <5 <5 <5 Vinyl chloride mg/kg <5 <5 <5 Bromomethane mg/kg <5 <5 <5 Chloroethane mg/kg <5 <5 <5 Trichlorofluoromethane mg/kg <5 <5 <5 1.1-Dichloroethene mg/kg <0.5 <0.5 <0.5 Iodomethane mg/kg <0.5 <0.5 <0.5 trans-1.2-dichloroethene mg/kg <0.5 <0.5 < Dichloroethane mg/kg <0.5 <0.5 <0.5 cis-1.2-dichloroethene mg/kg <0.5 <0.5 < Trichloroethane mg/kg <0.5 <0.5 < Dichloropropylene mg/kg <0.5 <0.5 <0.5 Carbon Tetrachloride mg/kg <0.5 <0.5 < Dichloroethane mg/kg <0.5 <0.5 <0.5 Trichloroethene mg/kg <0.5 <0.5 <0.5 Dibromomethane mg/kg <0.5 <0.5 < Trichloroethane mg/kg <0.5 <0.5 < Dichloropropane mg/kg <0.5 <0.5 <0.5 Tetrachloroethene mg/kg <0.5 <0.5 < Tetrachloroethane mg/kg <0.5 <0.5 <0.5 trans-1.4-dichloro-2-butene mg/kg <0.5 <0.5 <0.5 cis-1.4-dichloro-2-butene mg/kg <0.5 <0.5 < Tetrachloroethane mg/kg <0.5 <0.5 < Trichloropropane mg/kg <0.5 <0.5 <0.5 Pentachloroethane mg/kg <0.5 <0.5 < Dibromo-3-chloropropane mg/kg <0.5 <0.5 <0.5 Hexachlorobutadiene mg/kg <0.5 <0.5 <0.5 EP074F: Halogenated Aromatic Compounds

75 Page : 13 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 19-FEB :00 Compound CAS Number LOR Unit ES ES ES ES ES EP074F: Halogenated Aromatic Compounds - Continued Chlorobenzene mg/kg <0.5 <0.5 <0.5 Bromobenzene mg/kg <0.5 <0.5 <0.5 2-Chlorotoluene mg/kg <0.5 <0.5 <0.5 4-Chlorotoluene mg/kg <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 < Dichlorobenzene mg/kg <0.5 <0.5 < Trichlorobenzene mg/kg <0.5 <0.5 < Trichlorobenzene mg/kg <0.5 <0.5 <0.5 EP074G: Trihalomethanes Chloroform mg/kg <0.5 <0.5 <0.5 Bromodichloromethane mg/kg <0.5 <0.5 <0.5 Dibromochloromethane mg/kg <0.5 <0.5 <0.5 Bromoform mg/kg <0.5 <0.5 <0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 <0.5 Anthracene mg/kg <0.5 <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5 <0.5 Pyrene mg/kg <0.5 <0.5 <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 <0.5 Chrysene mg/kg <0.5 <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg

76 Page : 14 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 Compound CAS Number EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued sampling date / time LOR Unit 19-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 < <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 <100 C29 - C36 Fraction 100 mg/kg <100 <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 < <10 ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 10 mg/kg ES <10 < <10 >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 <100 >C34 - C40 Fraction 100 mg/kg <100 <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 <50 ^ >C10 - C16 Fraction minus Naphthalene (F2) 50 mg/kg <50 <50 <50 EP080: BTEXN Benzene mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Toluene mg/kg <0.5 < <0.5 Ethylbenzene mg/kg <0.5 < <0.5 meta- & para-xylene mg/kg <0.5 < <0.5 ortho-xylene mg/kg <0.5 < <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 < <0.2 ^ Total Xylenes mg/kg <0.5 < <0.5 Naphthalene mg/kg <1 <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP074S: VOC Surrogates

77 Page : 15 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 TRIP SPIKE 10 TRIP SPIKE 7 SB6_1.5 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 19-FEB :00 Compound EP074S: VOC Surrogates - Continued 1.2-Dichloroethane-D4 CAS Number LOR 0.1 Unit % ES ES ES ES ES Toluene-D % Bromofluorobenzene % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

78 Page : 16 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 Compound CAS Number sampling date / time LOR Unit 19-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES EA002 : ph (Soils) ph Value 0.1 ph Unit 6.3 EA055: Moisture Content Moisture Content 103 C) 1.0 % EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- S.SPOONER S.SPOONER ED008: Exchangeable Cations Exchangeable Calcium 0.1 meq/100g 0.9 Exchangeable Magnesium 0.1 meq/100g 3.8 Exchangeable Potassium 0.1 meq/100g 0.4 Exchangeable Sodium 0.1 meq/100g 2.4 Cation Exchange Capacity 0.1 meq/100g 7.6 EG005T: Total Metals by ICP-AES Iron mg/kg Arsenic mg/kg 13 <5 Cadmium mg/kg <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg <2 72 Zinc mg/kg <5 35 EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg 0.1 <0.1 EP004: Organic Matter Total Organic Carbon 0.5 % <0.5 EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05

79 Page : 17 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 Compound CAS Number LOR Unit ES ES ES ES EP068A: Organochlorine Pesticides (OC) - Continued gamma-bhc mg/kg <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 Aldrin mg/kg <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 Dieldrin mg/kg <0.05 < `-DDE mg/kg <0.05 <0.05 Endrin mg/kg <0.05 <0.05 beta-endosulfan mg/kg <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 < `-DDD mg/kg <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 < `-DDT mg/kg <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 Malathion mg/kg <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 Parathion mg/kg <0.2 <0.2

80 Page : 18 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 Compound CAS Number LOR Unit ES ES ES ES EP068B: Organophosphorus Pesticides (OP) - Continued Pirimphos-ethyl mg/kg <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 Prothiofos mg/kg <0.05 <0.05 Ethion mg/kg <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 EP074D: Fumigants 2.2-Dichloropropane mg/kg <0.5 < Dichloropropane mg/kg <0.5 <0.5 cis-1.3-dichloropropylene mg/kg <0.5 <0.5 trans-1.3-dichloropropylene mg/kg <0.5 < Dibromoethane (EDB) mg/kg <0.5 <0.5 EP074E: Halogenated Aliphatic Compounds Dichlorodifluoromethane mg/kg <5 <5 Chloromethane mg/kg <5 <5 Vinyl chloride mg/kg <5 <5 Bromomethane mg/kg <5 <5 Chloroethane mg/kg <5 <5 Trichlorofluoromethane mg/kg <5 <5 1.1-Dichloroethene mg/kg <0.5 <0.5 Iodomethane mg/kg <0.5 <0.5 trans-1.2-dichloroethene mg/kg <0.5 < Dichloroethane mg/kg <0.5 <0.5 cis-1.2-dichloroethene mg/kg <0.5 < Trichloroethane mg/kg <0.5 < Dichloropropylene mg/kg <0.5 <0.5 Carbon Tetrachloride mg/kg <0.5 < Dichloroethane mg/kg <0.5 <0.5 Trichloroethene mg/kg <0.5 <0.5 Dibromomethane mg/kg <0.5 < Trichloroethane mg/kg <0.5 <0.5

81 Page : 19 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 Compound CAS Number LOR Unit ES ES ES ES EP074E: Halogenated Aliphatic Compounds - Continued 1.3-Dichloropropane mg/kg <0.5 <0.5 Tetrachloroethene mg/kg <0.5 < Tetrachloroethane mg/kg <0.5 <0.5 trans-1.4-dichloro-2-butene mg/kg <0.5 <0.5 cis-1.4-dichloro-2-butene mg/kg <0.5 < Tetrachloroethane mg/kg <0.5 < Trichloropropane mg/kg <0.5 <0.5 Pentachloroethane mg/kg <0.5 < Dibromo-3-chloropropane mg/kg <0.5 <0.5 Hexachlorobutadiene mg/kg <0.5 <0.5 EP074F: Halogenated Aromatic Compounds Chlorobenzene mg/kg <0.5 <0.5 Bromobenzene mg/kg <0.5 <0.5 2-Chlorotoluene mg/kg <0.5 <0.5 4-Chlorotoluene mg/kg <0.5 < Dichlorobenzene mg/kg <0.5 < Dichlorobenzene mg/kg <0.5 < Dichlorobenzene mg/kg <0.5 < Trichlorobenzene mg/kg <0.5 < Trichlorobenzene mg/kg <0.5 <0.5 EP074G: Trihalomethanes Chloroform mg/kg <0.5 <0.5 Bromodichloromethane mg/kg <0.5 <0.5 Dibromochloromethane mg/kg <0.5 <0.5 Bromoform mg/kg <0.5 <0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 Anthracene mg/kg <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5

82 Page : 20 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 Compound CAS Number sampling date / time LOR Unit 19-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued Pyrene mg/kg <0.5 <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 Chrysene mg/kg <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 < C10 - C14 Fraction 50 mg/kg <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 C29 - C36 Fraction 100 mg/kg <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 < ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 10 mg/kg <10 < >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 >C34 - C40 Fraction 100 mg/kg <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 ^ >C10 - C16 Fraction minus Naphthalene (F2) 50 mg/kg <50 <50 EP080: BTEXN Benzene mg/kg <0.2 < Toluene mg/kg <0.5 < Ethylbenzene mg/kg <0.5 < meta- & para-xylene mg/kg <0.5 <

83 Page : 21 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB7_1.0 SB3_0.2 TSC10-16/2/15 TSC 7-16/2/15 sampling date / time 19-FEB :00 19-FEB :00 16-FEB :00 16-FEB :00 Compound EP080: BTEXN - Continued ortho-xylene CAS Number LOR 0.5 Unit mg/kg ES <0.5 ES <0.5 ES ES ^ Sum of BTEX 0.2 mg/kg <0.2 < ^ Total Xylenes mg/kg <0.5 < Naphthalene mg/kg <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP074S: VOC Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

84 Page : 22 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) sample ID RB_ TB_ RB_ TB_ Compound CAS Number sampling date / time LOR Unit 19-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene µg/l <1.0 <1.0 Acenaphthylene µg/l <1.0 <1.0 Acenaphthene µg/l <1.0 <1.0 Fluorene µg/l <1.0 <1.0 Phenanthrene µg/l <1.0 <1.0 Anthracene µg/l <1.0 <1.0 Fluoranthene µg/l <1.0 <1.0 Pyrene µg/l <1.0 <1.0 Benz(a)anthracene µg/l <1.0 <1.0 Chrysene µg/l <1.0 <1.0 Benzo(b+j)fluoranthene µg/l <1.0 <1.0 Benzo(k)fluoranthene µg/l <1.0 <1.0 Benzo(a)pyrene µg/l <0.5 <0.5 Indeno(1.2.3.cd)pyrene µg/l <1.0 <1.0 Dibenz(a.h)anthracene µg/l <1.0 <1.0 Benzo(g.h.i)perylene µg/l <1.0 <1.0 ^ Sum of polycyclic aromatic hydrocarbons 0.5 µg/l <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 µg/l <0.5 <0.5 EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 20 µg/l <20 <20 <20 <20 C10 - C14 Fraction 50 µg/l <50 <50 <50 <50 C15 - C28 Fraction 100 µg/l <100 <100 <100 <100 C29 - C36 Fraction 50 µg/l <50 <50 <50 <50 ^ C10 - C36 Fraction (sum) 50 µg/l <50 <50 <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 20 µg/l <20 <20 <20 <20 ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 20 µg/l <20 <20 <20 <20 >C10 - C16 Fraction >C10_C µg/l <100 <100 <100 <100 >C16 - C34 Fraction 100 µg/l <100 <100 <100 <100 >C34 - C40 Fraction 100 µg/l <100 <100 <100 <100 ^ >C10 - C40 Fraction (sum) 100 µg/l <100 <100 <100 <100 ^ >C10 - C16 Fraction minus Naphthalene (F2) 100 µg/l <100 <100 <100 <100

85 Page : 23 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) sample ID RB_ TB_ RB_ TB_ sampling date / time 19-FEB :00 19-FEB :00 19-FEB :00 19-FEB :00 Compound EP080: BTEXN Benzene CAS Number LOR 1 Unit µg/l ES <1 ES <1 ES <1 ES <1 Toluene µg/l <2 <2 <2 <2 Ethylbenzene µg/l <2 <2 <2 <2 meta- & para-xylene µg/l <2 <2 <2 <2 ortho-xylene µg/l <2 <2 <2 <2 ^ Total Xylenes µg/l <2 <2 <2 <2 ^ Sum of BTEX 1 µg/l <1 <1 <1 <1 Naphthalene µg/l <5 <5 <5 <5 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

86 Page : 24 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Descriptive Results Sub-Matrix: SOIL Method: Compound sample ID - sampling date / time EA200: AS Identification of Asbestos in bulk samples EA200: Description SB1_ FEB :00 EA200: Description SB2_ FEB :00 EA200: Description SB8_ FEB :00 EA200: Description SB9_ FEB :00 EA200: Description SB4_ FEB :00 EA200: Description SB5_ FEB :00 EA200: Description DUP02-19-FEB :00 EA200: Description SB6_ FEB :00 EA200: Description SB7_ FEB :00 EA200: Description SB3_ FEB :00 Analytical Results Mid grey clay soil with concrete debris. Pale brown clay soil with grey and red rcoks. Mid brown clay soil with grey rocks. Mid grey sandy soil with shell debris. Mid grey - brown clay soil with grey rocks. Mid brown clay soil with grey and orange rocks. Mid orange - brown clay soil with grey rocks. Mid grey - brown clay soil with grey rocks. Mid orange clay soil with red rocks. Mid grey clay soil with grey rocks.

87 Page : 25 of 25 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: SOIL Recovery Limits (%) Compound CAS Number Low High EP066S: PCB Surrogate Decachlorobiphenyl EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE EP068T: Organophosphorus Pesticide Surrogate DEF EP074S: VOC Surrogates 1.2-Dichloroethane-D Toluene-D Bromofluorobenzene EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D Toluene-D Bromofluorobenzene Sub-Matrix: WATER Recovery Limits (%) Compound CAS Number Low High EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D Toluene-D Bromofluorobenzene

88 False False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 20 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RHODES C-O-C number : 75646, & Date Samples Received : 20-FEB-2015 Sampler : Issue Date : 02-MAR-2015 Order number : No. of samples received : 39 Quote number : EN/008/14 No. of samples analysed : 18 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

89 Page : 2 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Ankit Joshi Inorganic Chemist Sydney Inorganics Dian Dao Inorganic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Inorganics Sydney Organics Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Shaun Spooner Asbestos Identifier Newcastle - Asbestos Shobhna Chandra Metals Coordinator Sydney Inorganics

90 Page : 3 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA002 : ph (Soils) (QC Lot: ) ES ES Anonymous Anonymous EA055: Moisture Content (QC Lot: ) ES ES Anonymous SB3_0.2 ED008: Exchangeable Cations (QC Lot: ) ES SB7_1.0 EG005T: Total Metals by ICP-AES (QC Lot: ) ES ES Anonymous SB1_0.5 EG035T: Total Recoverable Mercury by FIMS (QC Lot: ) ES ES Anonymous SB1_0.5 EP004: Organic Matter (QC Lot: ) ES SB7_1.0 EP066: Polychlorinated Biphenyls (PCB) (QC Lot: ) ES ES Anonymous SB2_1.0 EP068A: Organochlorine Pesticides (OC) (QC Lot: ) EA002: ph Value 0.1 ph Unit % - 20% EA002: ph Value 0.1 ph Unit % - 20% EA : Moisture Content 103 C) 1.0 % % - 20% EA : Moisture Content 103 C) 1.0 % No Limit ED008: Exchangeable Calcium 0.1 meq/100g % - 20% ED008: Exchangeable Magnesium 0.1 meq/100g % - 20% ED008: Exchangeable Potassium 0.1 meq/100g % - 20% ED008: Exchangeable Sodium 0.1 meq/100g % - 20% ED008: Cation Exchange Capacity 0.1 meq/100g % - 20% EG005T: Cadmium mg/kg <1 <1 0.0 No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG005T: Cadmium mg/kg <1 <1 0.0 No Limit EG005T: Chromium mg/kg % - 50% EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg % - 20% EG035T: Mercury mg/kg No Limit EG035T: Mercury mg/kg < No Limit EP004: Total Organic Carbon 0.5 % <0.5 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit

91 Page : 4 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: ) - continued ES ES Anonymous SB2_1.0 EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit

92 Page : 5 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: ) - continued ES SB2_1.0 EP068B: Organophosphorus Pesticides (OP) (QC Lot: ) ES ES Anonymous SB2_1.0 EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit

93 Page : 6 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP074D: Fumigants (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP074E: Halogenated Aliphatic Compounds (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP074: 2.2-Dichloropropane mg/kg <0.5 < No Limit EP074: 1.2-Dichloropropane mg/kg <0.5 < No Limit EP074: cis-1.3-dichloropropylene mg/kg <0.5 < No Limit EP074: trans-1.3-dichloropropylene mg/kg <0.5 < No Limit EP074: 1.2-Dibromoethane (EDB) mg/kg <0.5 < No Limit EP074: 2.2-Dichloropropane mg/kg <0.5 < No Limit EP074: 1.2-Dichloropropane mg/kg <0.5 < No Limit EP074: cis-1.3-dichloropropylene mg/kg <0.5 < No Limit EP074: trans-1.3-dichloropropylene mg/kg <0.5 < No Limit EP074: 1.2-Dibromoethane (EDB) mg/kg <0.5 < No Limit EP074: 1.1-Dichloroethene mg/kg <0.5 < No Limit EP074: Iodomethane mg/kg <0.5 < No Limit EP074: trans-1.2-dichloroethene mg/kg <0.5 < No Limit EP074: 1.1-Dichloroethane mg/kg <0.5 < No Limit EP074: cis-1.2-dichloroethene mg/kg <0.5 < No Limit EP074: Trichloroethane mg/kg <0.5 < No Limit EP074: 1.1-Dichloropropylene mg/kg <0.5 < No Limit EP074: Carbon Tetrachloride mg/kg <0.5 < No Limit EP074: 1.2-Dichloroethane mg/kg <0.5 < No Limit EP074: Trichloroethene mg/kg <0.5 < No Limit EP074: Dibromomethane mg/kg <0.5 < No Limit EP074: Trichloroethane mg/kg <0.5 < No Limit EP074: 1.3-Dichloropropane mg/kg <0.5 < No Limit EP074: Tetrachloroethene mg/kg <0.5 < No Limit EP074: Tetrachloroethane mg/kg <0.5 < No Limit EP074: trans-1.4-dichloro-2-butene mg/kg <0.5 < No Limit EP074: cis-1.4-dichloro-2-butene mg/kg <0.5 < No Limit EP074: Tetrachloroethane mg/kg <0.5 < No Limit EP074: Trichloropropane mg/kg <0.5 < No Limit EP074: Pentachloroethane mg/kg <0.5 < No Limit EP074: 1.2-Dibromo-3-chloropropane mg/kg <0.5 < No Limit EP074: Hexachlorobutadiene mg/kg <0.5 < No Limit EP074: Dichlorodifluoromethane mg/kg <5 <5 0.0 No Limit EP074: Chloromethane mg/kg <5 <5 0.0 No Limit EP074: Vinyl chloride mg/kg <5 <5 0.0 No Limit EP074: Bromomethane mg/kg <5 <5 0.0 No Limit EP074: Chloroethane mg/kg <5 <5 0.0 No Limit EP074: Trichlorofluoromethane mg/kg <5 <5 0.0 No Limit EP074: 1.1-Dichloroethene mg/kg <0.5 < No Limit

94 Page : 7 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP074E: Halogenated Aliphatic Compounds (QC Lot: ) - continued ES SB3_0.2 EP074F: Halogenated Aromatic Compounds (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP074: Iodomethane mg/kg <0.5 < No Limit EP074: trans-1.2-dichloroethene mg/kg <0.5 < No Limit EP074: 1.1-Dichloroethane mg/kg <0.5 < No Limit EP074: cis-1.2-dichloroethene mg/kg <0.5 < No Limit EP074: Trichloroethane mg/kg <0.5 < No Limit EP074: 1.1-Dichloropropylene mg/kg <0.5 < No Limit EP074: Carbon Tetrachloride mg/kg <0.5 < No Limit EP074: 1.2-Dichloroethane mg/kg <0.5 < No Limit EP074: Trichloroethene mg/kg <0.5 < No Limit EP074: Dibromomethane mg/kg <0.5 < No Limit EP074: Trichloroethane mg/kg <0.5 < No Limit EP074: 1.3-Dichloropropane mg/kg <0.5 < No Limit EP074: Tetrachloroethene mg/kg <0.5 < No Limit EP074: Tetrachloroethane mg/kg <0.5 < No Limit EP074: trans-1.4-dichloro-2-butene mg/kg <0.5 < No Limit EP074: cis-1.4-dichloro-2-butene mg/kg <0.5 < No Limit EP074: Tetrachloroethane mg/kg <0.5 < No Limit EP074: Trichloropropane mg/kg <0.5 < No Limit EP074: Pentachloroethane mg/kg <0.5 < No Limit EP074: 1.2-Dibromo-3-chloropropane mg/kg <0.5 < No Limit EP074: Hexachlorobutadiene mg/kg <0.5 < No Limit EP074: Dichlorodifluoromethane mg/kg <5 <5 0.0 No Limit EP074: Chloromethane mg/kg <5 <5 0.0 No Limit EP074: Vinyl chloride mg/kg <5 <5 0.0 No Limit EP074: Bromomethane mg/kg <5 <5 0.0 No Limit EP074: Chloroethane mg/kg <5 <5 0.0 No Limit EP074: Trichlorofluoromethane mg/kg <5 <5 0.0 No Limit EP074: Chlorobenzene mg/kg <0.5 < No Limit EP074: Bromobenzene mg/kg <0.5 < No Limit EP074: 2-Chlorotoluene mg/kg <0.5 < No Limit EP074: 4-Chlorotoluene mg/kg <0.5 < No Limit EP074: 1.3-Dichlorobenzene mg/kg <0.5 < No Limit EP074: 1.4-Dichlorobenzene mg/kg <0.5 < No Limit EP074: 1.2-Dichlorobenzene mg/kg <0.5 < No Limit EP074: Trichlorobenzene mg/kg <0.5 < No Limit EP074: Trichlorobenzene mg/kg <0.5 < No Limit EP074: Chlorobenzene mg/kg <0.5 < No Limit EP074: Bromobenzene mg/kg <0.5 < No Limit EP074: 2-Chlorotoluene mg/kg <0.5 < No Limit

95 Page : 8 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP074F: Halogenated Aromatic Compounds (QC Lot: ) - continued ES SB3_0.2 EP074G: Trihalomethanes (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) ES ES Anonymous SB2_1.0 EP074: 4-Chlorotoluene mg/kg <0.5 < No Limit EP074: 1.3-Dichlorobenzene mg/kg <0.5 < No Limit EP074: 1.4-Dichlorobenzene mg/kg <0.5 < No Limit EP074: 1.2-Dichlorobenzene mg/kg <0.5 < No Limit EP074: Trichlorobenzene mg/kg <0.5 < No Limit EP074: Trichlorobenzene mg/kg <0.5 < No Limit EP074: Chloroform mg/kg <0.5 < No Limit EP074: Bromodichloromethane mg/kg <0.5 < No Limit EP074: Dibromochloromethane mg/kg <0.5 < No Limit EP074: Bromoform mg/kg <0.5 < No Limit EP074: Chloroform mg/kg <0.5 < No Limit EP074: Bromodichloromethane mg/kg <0.5 < No Limit EP074: Dibromochloromethane mg/kg <0.5 < No Limit EP074: Bromoform mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit

96 Page : 9 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) - continued ES SB2_1.0 EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES Anonymous SB2_1.0 EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous SB2_1.0 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES SB1_0.5 SB3_0.2 EP080: BTEXN (QC Lot: ) ES SB1_ mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit

97 Page : 10 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080: BTEXN (QC Lot: ) - continued ES ES Sub-Matrix: WATER SB1_0.5 SB3_0.2 EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 <1 0.0 No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 <1 0.0 No Limit Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES Anonymous Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous Anonymous EP080: BTEXN (QC Lot: ) ES ES Anonymous Anonymous EP080: C6 - C9 Fraction 20 µg/l No Limit EP080: C6 - C9 Fraction 20 µg/l No Limit EP080: C6 - C10 Fraction C6_C10 20 µg/l No Limit EP080: C6 - C10 Fraction C6_C10 20 µg/l No Limit EP080: Benzene µg/l <1 <1 0.0 No Limit EP080: Toluene µg/l <2 <2 0.0 No Limit EP080: Ethylbenzene µg/l <2 <2 0.0 No Limit EP080: meta- & para-xylene µg/l <2 <2 0.0 No Limit EP080: ortho-xylene µg/l <2 <2 0.0 No Limit EP080: Naphthalene µg/l <5 <5 0.0 No Limit EP080: Benzene µg/l <1 <1 0.0 No Limit EP080: Toluene µg/l <2 <2 0.0 No Limit EP080: Ethylbenzene µg/l <2 <2 0.0 No Limit EP080: meta- & para-xylene µg/l <2 <2 0.0 No Limit EP080: ortho-xylene µg/l <2 <2 0.0 No Limit EP080: Naphthalene µg/l <5 <5 0.0 No Limit

98 Page : 11 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Spike (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High ED008: Exchangeable Cations (QCLot: ) ED008: Exchangeable Calcium 0.1 meq/100g <0.1 1 meq/100g ED008: Exchangeable Magnesium 0.1 meq/100g < meq/100g ED008: Exchangeable Potassium 0.1 meq/100g < meq/100g ED008: Exchangeable Sodium 0.1 meq/100g < meq/100g ED008: Cation Exchange Capacity 0.1 meq/100g <0.1 EG005T: Total Metals by ICP-AES (QCLot: ) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg # EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg < mg/kg EG005T: Iron mg/kg < mg/kg EG005T: Lead mg/kg < mg/kg # EG005T: Nickel mg/kg < mg/kg EG005T: Zinc mg/kg < mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG035T: Mercury mg/kg < mg/kg EP004: Organic Matter (QCLot: ) EP004: Total Organic Carbon 0.5 % < % EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) EP068: alpha-bhc mg/kg < mg/kg EP068: Hexachlorobenzene (HCB) mg/kg < mg/kg EP068: beta-bhc mg/kg < mg/kg EP068: gamma-bhc mg/kg < mg/kg EP068: delta-bhc mg/kg < mg/kg EP068: Heptachlor mg/kg < mg/kg EP068: Aldrin mg/kg < mg/kg EP068: Heptachlor epoxide mg/kg < mg/kg EP068: trans-chlordane mg/kg < mg/kg EP068: alpha-endosulfan mg/kg < mg/kg EP068: cis-chlordane mg/kg < mg/kg

99 Page : 12 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068A: Organochlorine Pesticides (OC) (QCLot: ) - continued EP068: Dieldrin mg/kg < mg/kg EP068: 4.4`-DDE mg/kg < mg/kg EP068: Endrin mg/kg < mg/kg EP068: beta-endosulfan mg/kg < mg/kg EP068: 4.4`-DDD mg/kg < mg/kg EP068: Endrin aldehyde mg/kg < mg/kg EP068: Endosulfan sulfate mg/kg < mg/kg EP068: 4.4`-DDT mg/kg < mg/kg EP068: Endrin ketone mg/kg < mg/kg EP068: Methoxychlor mg/kg < mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) EP068: Dichlorvos mg/kg < mg/kg EP068: Demeton-S-methyl mg/kg < mg/kg EP068: Monocrotophos mg/kg < mg/kg EP068: Dimethoate mg/kg < mg/kg EP068: Diazinon mg/kg < mg/kg EP068: Chlorpyrifos-methyl mg/kg < mg/kg EP068: Parathion-methyl mg/kg < mg/kg EP068: Malathion mg/kg < mg/kg EP068: Fenthion mg/kg < mg/kg EP068: Chlorpyrifos mg/kg < mg/kg EP068: Parathion mg/kg < mg/kg EP068: Pirimphos-ethyl mg/kg < mg/kg EP068: Chlorfenvinphos mg/kg < mg/kg EP068: Bromophos-ethyl mg/kg < mg/kg EP068: Fenamiphos mg/kg < mg/kg EP068: Prothiofos mg/kg < mg/kg EP068: Ethion mg/kg < mg/kg EP068: Carbophenothion mg/kg < mg/kg EP068: Azinphos Methyl mg/kg < mg/kg EP074D: Fumigants (QCLot: ) EP074: 2.2-Dichloropropane mg/kg <0.5 1 mg/kg EP074: 1.2-Dichloropropane mg/kg <0.5 1 mg/kg EP074: cis-1.3-dichloropropylene mg/kg <0.5 1 mg/kg EP074: trans-1.3-dichloropropylene mg/kg <0.5 1 mg/kg EP074: 1.2-Dibromoethane (EDB) mg/kg <0.5 1 mg/kg

100 Page : 13 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP074E: Halogenated Aliphatic Compounds (QCLot: ) EP074: Dichlorodifluoromethane mg/kg <5 10 mg/kg EP074: Chloromethane mg/kg <5 10 mg/kg EP074: Vinyl chloride mg/kg <5 10 mg/kg EP074: Bromomethane mg/kg <5 10 mg/kg EP074: Chloroethane mg/kg <5 10 mg/kg EP074: Trichlorofluoromethane mg/kg <5 10 mg/kg EP074: 1.1-Dichloroethene mg/kg <0.5 1 mg/kg EP074: Iodomethane mg/kg <0.5 1 mg/kg EP074: trans-1.2-dichloroethene mg/kg <0.5 1 mg/kg EP074: 1.1-Dichloroethane mg/kg <0.5 1 mg/kg EP074: cis-1.2-dichloroethene mg/kg <0.5 1 mg/kg EP074: Trichloroethane mg/kg <0.5 1 mg/kg EP074: 1.1-Dichloropropylene mg/kg <0.5 1 mg/kg EP074: Carbon Tetrachloride mg/kg <0.5 1 mg/kg EP074: 1.2-Dichloroethane mg/kg <0.5 1 mg/kg EP074: Trichloroethene mg/kg <0.5 1 mg/kg EP074: Dibromomethane mg/kg <0.5 1 mg/kg EP074: Trichloroethane mg/kg <0.5 1 mg/kg EP074: 1.3-Dichloropropane mg/kg <0.5 1 mg/kg EP074: Tetrachloroethene mg/kg <0.5 1 mg/kg EP074: Tetrachloroethane mg/kg <0.5 1 mg/kg EP074: trans-1.4-dichloro-2-butene mg/kg <0.5 1 mg/kg EP074: cis-1.4-dichloro-2-butene mg/kg <0.5 1 mg/kg EP074: Tetrachloroethane mg/kg <0.5 1 mg/kg EP074: Trichloropropane mg/kg <0.5 1 mg/kg EP074: Pentachloroethane mg/kg <0.5 1 mg/kg # EP074: 1.2-Dibromo-3-chloropropane mg/kg <0.5 1 mg/kg EP074: Hexachlorobutadiene mg/kg <0.5 1 mg/kg EP074F: Halogenated Aromatic Compounds (QCLot: ) EP074: Chlorobenzene mg/kg <0.5 1 mg/kg EP074: Bromobenzene mg/kg <0.5 1 mg/kg EP074: 2-Chlorotoluene mg/kg <0.5 1 mg/kg EP074: 4-Chlorotoluene mg/kg <0.5 1 mg/kg EP074: 1.3-Dichlorobenzene mg/kg <0.5 1 mg/kg EP074: 1.4-Dichlorobenzene mg/kg <0.5 1 mg/kg EP074: 1.2-Dichlorobenzene mg/kg <0.5 1 mg/kg EP074: Trichlorobenzene mg/kg <0.5 1 mg/kg

101 Page : 14 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP074F: Halogenated Aromatic Compounds (QCLot: ) - continued EP074: Trichlorobenzene mg/kg <0.5 1 mg/kg EP074G: Trihalomethanes (QCLot: ) EP074: Chloroform mg/kg <0.5 1 mg/kg EP074: Bromodichloromethane mg/kg <0.5 1 mg/kg EP074: Dibromochloromethane mg/kg <0.5 1 mg/kg EP074: Bromoform mg/kg <0.5 1 mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene mg/kg <0.5 4 mg/kg EP075(SIM): Acenaphthylene mg/kg <0.5 4 mg/kg EP075(SIM): Acenaphthene mg/kg <0.5 4 mg/kg EP075(SIM): Fluorene mg/kg <0.5 4 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 4 mg/kg EP075(SIM): Anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Chrysene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 4 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 mg/kg < mg/kg EP071: C15 - C28 Fraction 100 mg/kg < mg/kg EP071: C29 - C36 Fraction 100 mg/kg < mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 10 mg/kg <10 26 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg < mg/kg EP071: >C16 - C34 Fraction 100 mg/kg < mg/kg EP071: >C34 - C40 Fraction 50 mg/kg < mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 31 mg/kg

102 Page : 15 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080: BTEXN (QCLot: ) EP080: Benzene mg/kg <0.2 1 mg/kg EP080: Toluene mg/kg <0.5 1 mg/kg EP080: Ethylbenzene mg/kg <0.5 1 mg/kg EP080: meta- & para-xylene mg/kg <0.5 2 mg/kg EP080: ortho-xylene mg/kg <0.5 1 mg/kg EP080: Naphthalene mg/kg <1 1 mg/kg Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthylene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthene µg/l <1.0 5 µg/l EP075(SIM): Fluorene µg/l <1.0 5 µg/l EP075(SIM): Phenanthrene µg/l <1.0 5 µg/l EP075(SIM): Anthracene µg/l <1.0 5 µg/l EP075(SIM): Fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Pyrene µg/l <1.0 5 µg/l EP075(SIM): Benz(a)anthracene µg/l <1.0 5 µg/l EP075(SIM): Chrysene µg/l <1.0 5 µg/l EP075(SIM): Benzo(b+j)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(k)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l EP075(SIM): Indeno(1.2.3.cd)pyrene µg/l <1.0 5 µg/l EP075(SIM): Dibenz(a.h)anthracene µg/l <1.0 5 µg/l EP075(SIM): Benzo(g.h.i)perylene µg/l <1.0 5 µg/l EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 µg/l < µg/l EP071: C15 - C28 Fraction 100 µg/l < µg/l EP071: C29 - C36 Fraction 50 µg/l < µg/l EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 20 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C µg/l < µg/l EP071: >C16 - C34 Fraction 100 µg/l < µg/l

103 Page : 16 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) - continued EP071: >C34 - C40 Fraction 50 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 20 µg/l < µg/l EP080: BTEXN (QCLot: ) EP080: Benzene µg/l <1 10 µg/l EP080: Toluene µg/l <2 10 µg/l EP080: Ethylbenzene µg/l <2 10 µg/l EP080: meta- & para-xylene µg/l <2 10 µg/l EP080: ortho-xylene µg/l <2 10 µg/l EP080: Naphthalene µg/l <5 10 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005T: Arsenic mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg ES Anonymous EG035T: Mercury mg/kg EP004: Organic Matter (QCLot: ) ES SB7_1.0 EP004: Total Organic Carbon 0.65 % EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) ES Anonymous EP066: Total Polychlorinated biphenyls 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) ES Anonymous EP068: gamma-bhc mg/kg EP068: Heptachlor mg/kg MS Low High

104 Page : 17 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP068A: Organochlorine Pesticides (OC) (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP068: Aldrin mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: 4.4`-DDT mg/kg ES Anonymous EP068: Diazinon mg/kg EP074E: Halogenated Aliphatic Compounds (QCLot: ) EP068: Chlorpyrifos-methyl mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Bromophos-ethyl mg/kg EP068: Prothiofos mg/kg ES SB1_0.5 EP074: 1.1-Dichloroethene mg/kg EP074F: Halogenated Aromatic Compounds (QCLot: ) EP074: Trichloroethene mg/kg ES SB1_0.5 EP074: Chlorobenzene mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) ES Anonymous EP075(SIM): Acenaphthene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP075(SIM): Pyrene mg/kg ES Anonymous EP071: C10 - C14 Fraction 560 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C15 - C28 Fraction 2370 mg/kg EP071: C29 - C36 Fraction 1695 mg/kg ES SB1_0.5 EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES SB1_0.5 EP080: BTEXN (QCLot: ) EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 3190 mg/kg EP071: >C34 - C40 Fraction 1087 mg/kg EP080: C6 - C10 Fraction C6_C mg/kg ES SB1_0.5 EP080: Benzene mg/kg EP080: Toluene mg/kg EP080: Ethylbenzene mg/kg MS Low High

105 Page : 18 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP080: BTEXN (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES SB1_0.5 EP080: meta- & para-xylene mg/kg EP080: ortho-xylene mg/kg Sub-Matrix: WATER EP080: Naphthalene mg/kg Laboratory sample ID sample ID Method: Compound CAS Number EP080/071: Total Petroleum Hydrocarbons (QCLot: ) Spike Concentration MS Matrix Spike (MS) Report Low SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP080: C6 - C9 Fraction 325 µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: BTEXN (QCLot: ) EP080: C6 - C10 Fraction C6_C µg/l ES Anonymous EP080: Benzene µg/l EP080: Toluene µg/l EP080: Ethylbenzene µg/l EP080: meta- & para-xylene µg/l EP080: ortho-xylene µg/l EP080: Naphthalene µg/l MS Low High High Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QCLot: ) ES Anonymous EP068: gamma-bhc mg/kg MS MSD Low High Value RPDs (%) EP068: Heptachlor mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: 4.4`-DDT mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) ES Anonymous EP068: Diazinon mg/kg Control Limit

106 Page : 19 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP068B: Organophosphorus Pesticides (OP) (QCLot: ) - continued ES Anonymous EP068: Chlorpyrifos-methyl mg/kg MS MSD Low High Value RPDs (%) EP068: Pirimphos-ethyl mg/kg EP068: Bromophos-ethyl mg/kg EP068: Prothiofos mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) ES Anonymous EP066: Total Polychlorinated biphenyls 1 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES Anonymous EP071: C10 - C14 Fraction 560 mg/kg EP071: C15 - C28 Fraction 2370 mg/kg EP071: C29 - C36 Fraction 1695 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 3190 mg/kg EP071: >C34 - C40 Fraction 1087 mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) ES Anonymous EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES SB1_0.5 EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES SB1_0.5 EP080: C6 - C10 Fraction C6_C mg/kg EP080: BTEXN (QCLot: ) ES SB1_0.5 EP080: Benzene mg/kg EP080: Toluene mg/kg EP080: Ethylbenzene mg/kg EP080: meta- & para-xylene mg/kg EP080: ortho-xylene mg/kg EP080: Naphthalene mg/kg EP074E: Halogenated Aliphatic Compounds (QCLot: ) ES SB1_0.5 EP074: 1.1-Dichloroethene mg/kg EP074: Trichloroethene mg/kg EP074F: Halogenated Aromatic Compounds (QCLot: ) ES SB1_0.5 EP074: Chlorobenzene mg/kg Control Limit

107 Page : 20 of 20 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP004: Organic Matter (QCLot: ) ES SB7_1.0 EP004: Total Organic Carbon 0.65 % EG005T: Total Metals by ICP-AES (QCLot: ) ES Anonymous EG005T: Arsenic mg/kg MS MSD Low High Value RPDs (%) EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) ES Anonymous EG035T: Mercury mg/kg Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES Anonymous EP080: C6 - C9 Fraction 325 µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: C6 - C10 Fraction C6_C µg/l EP080: BTEXN (QCLot: ) ES Anonymous EP080: Benzene µg/l MS MSD Low High Value RPDs (%) EP080: Toluene µg/l EP080: Ethylbenzene µg/l EP080: meta- & para-xylene µg/l EP080: ortho-xylene µg/l Control Limit Control Limit EP080: Naphthalene µg/l

108 True Environmental INTERPRETIVE QUALITY CONTROL REPORT Work Order : ES Page : 1 of 10 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RHODES C-O-C number : 75646, & Date Samples Received : 20-FEB-2015 Sampler : Issue Date : 02-MAR-2015 Order number : No. of samples received : 39 Quote number : EN/008/14 No. of samples analysed : 18 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Interpretive Quality Control Report contains the following information: Analysis Holding Time Compliance Quality Control Parameter Frequency Compliance Brief Method Summaries Summary of Outliers Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

109 Page : 2 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Dates Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA002 : ph (Soils) Soil Glass Jar - Unpreserved (EA002) SB7_1.0 EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EA ) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_ FEB FEB FEB FEB FEB FEB FEB MAR FEB FEB MAR-2015 EA200: AS Identification of Asbestos in bulk samples Snap Lock Bag - Separate bag received (EA200) SB1_0.5, SB8_ FEB AUG MAR AUG-2015 Snap Lock Bag - Separate bag received (EA200) SB5_0.5, SB6_1.5, 19-FEB AUG MAR AUG-2015 SB7_1.0 Snap Lock Bag - Subsampled by ALS (EA200) SB2_1.0, SB9_ FEB AUG MAR AUG-2015 Snap Lock Bag - Subsampled by ALS (EA200) SB4_1.5, DUP02, 19-FEB AUG MAR AUG-2015 SB3_0.2 ED008: Exchangeable Cations Soil Glass Jar - Unpreserved (ED008) SB7_1.0 EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EG005T) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_ FEB FEB MAR FEB MAR FEB FEB AUG FEB AUG FEB FEB AUG FEB AUG-2015

110 Page : 3 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG035T: Total Recoverable Mercury by FIMS Soil Glass Jar - Unpreserved (EG035T) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EG035T) SB4_1.5, DUP02, SB7_1.0, EP004: Organic Matter Soil Glass Jar - Unpreserved (EP004) SB7_1.0 EP066: Polychlorinated Biphenyls (PCB) Soil Glass Jar - Unpreserved (EP066) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP066) SB4_1.5, DUP02, SB7_1.0, EP068A: Organochlorine Pesticides (OC) Soil Glass Jar - Unpreserved (EP068) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP068) SB4_1.5, DUP02, SB7_1.0, EP068B: Organophosphorus Pesticides (OP) Soil Glass Jar - Unpreserved (EP068) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP068) SB4_1.5, DUP02, SB7_1.0, EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP071) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP071) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_ FEB FEB MAR MAR MAR FEB FEB MAR MAR MAR FEB MAR MAR MAR MAR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR FEB FEB MAR FEB APR-2015

111 Page : 4 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP074D: Fumigants Soil Glass Jar - Unpreserved (EP074) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP074) SB4_1.5, DUP02, SB7_1.0, EP074E: Halogenated Aliphatic Compounds Soil Glass Jar - Unpreserved (EP074) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP074) SB4_1.5, DUP02, SB7_1.0, EP074F: Halogenated Aromatic Compounds Soil Glass Jar - Unpreserved (EP074) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP074) SB4_1.5, DUP02, SB7_1.0, EP074G: Trihalomethanes Soil Glass Jar - Unpreserved (EP074) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP074) SB4_1.5, DUP02, SB7_1.0, EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP075(SIM)) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_ FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB FEB MAR FEB APR FEB FEB MAR FEB APR-2015

112 Page : 5 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP080: BTEXN Soil Glass Jar - Unpreserved (EP080) TRIP SPIKE 10, TRIP SPIKE 7, TSC10-16/2/15, TSC 7-16/2/15 Soil Glass Jar - Unpreserved (EP080) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP080) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_0.2 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions Soil Glass Jar - Unpreserved (EP080) TRIP SPIKE 10, TRIP SPIKE 7, TSC10-16/2/15, TSC 7-16/2/15 Soil Glass Jar - Unpreserved (EP080) SB1_0.5, SB8_0.6, Soil Glass Jar - Unpreserved (EP080) SB4_1.5, DUP02, SB7_1.0, SB2_1.0, SB9_0.1 SB5_0.5, SB6_1.5, SB3_ FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR-2015 Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions Amber Glass Bottle - Unpreserved (EP071) RB_190215, TB_190215, RB_180215, TB_ FEB FEB FEB FEB APR-2015 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) RB_190215, RB_ FEB FEB FEB APR-2015 EP080: BTEXN Amber VOC Vial - Sulfuric Acid (EP080) RB_190215, RB_180215, EP080/071: Total Petroleum Hydrocarbons Amber VOC Vial - Sulfuric Acid (EP080) RB_190215, RB_180215, TB_190215, TB_ TB_190215, TB_ FEB FEB FEB MAR FEB MAR FEB FEB MAR FEB MAR-2015

113 Page : 6 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Exchangeable Cations with pre-treatment Moisture Content Organic Matter PAH/Phenols (SIM) Pesticides by GCMS ph (1:5) Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Volatile Organic Compounds Laboratory Control Samples (LCS) Exchangeable Cations with pre-treatment Organic Matter PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Volatile Organic Compounds Method Blanks (MB) Exchangeable Cations with pre-treatment Organic Matter PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Volatile Organic Compounds Matrix Spikes (MS) Organic Matter Method ED008 EA EP004 EP075(SIM) EP068 EA002 EP066 EG035T EG005T EP071 EP080 EP074 ED008 EP004 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP074 ED008 EP004 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP074 EP004 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

114 Page : 7 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Quality Control Sample Type Analytical Methods Matrix Spikes (MS) - Continued PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Volatile Organic Compounds Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (GC/MS - SIM) TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (GC/MS - SIM) TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) TRH Volatiles/BTEX Method EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP074 Method EP080 EP075(SIM) EP071 EP080 EP075(SIM) EP071 EP080 EP080 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Count QC Regular Actual Quality Control Specification Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

115 Page : 8 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix ph (1:5) EA002 SOIL Moisture Content EA SOIL Asbestos Identification in Soils EA200 SOIL Exchangeable Cations with pre-treatment ED008 SOIL Total Metals by ICP-AES EG005T SOIL Total Mercury by FIMS EG035T SOIL Organic Matter EP004 SOIL Polychlorinated Biphenyls (PCB) EP066 SOIL Pesticides by GCMS EP068 SOIL TRH - Semivolatile Fraction EP071 SOIL Volatile Organic Compounds EP074 SOIL PAH/Phenols (SIM) EP075(SIM) SOIL TRH Volatiles/BTEX EP080 SOIL Method Descriptions In house: Referenced to APHA 21st ed., 4500H+. ph is determined on soil samples after a 1:5 soil/water leach. This method is compliant with NEPM (2013) Schedule B(3) (Method 103) In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). AS Method for the qualitative identification of asbestos in bulk samples Analysis by Polarised Light Microscopy including dispersion staining In house: Referenced to Rayment & Higginson (2011) Method 15A2. Soluble salts are removed from the sample prior to analysis. Cations are exchanged from the sample by contact with Ammonium Chloride. They are then quantitated in the final solution by ICPAES and reported as meq/100g of original soil. This method is compliant with NEPM (2013) Schedule B(3) (Method 301) In house: Referenced to APHA 21st ed., 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS 3550, APHA 21st ed., 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS , Dichromate oxidation method after Walkley and Black. This method is compliant with NEPM (2013) Schedule B(3) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 504) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This technique is compliant with NEPM (2013) Schedule B(3) (Method 504,505) (USEPA SW A) Sample extracts are analysed by Capillary GC/FID and quantified against alkane standards over the range C10 - C40. (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 501) (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve.

116 Page : 9 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Methods Method Matrix TRH - Semivolatile Fraction EP071 WATER PAH/Phenols (GC/MS - SIM) EP075(SIM) WATER TRH Volatiles/BTEX EP080 WATER Preparation Methods Method Matrix Exchangeable Cations Preparation Method ED007PR SOIL 1:5 solid / water leach for soluble EN34 SOIL analytes Organic Matter EP004-PR SOIL Methanolic Extraction of Soils for Purge * ORG16 SOIL and Trap Tumbler Extraction of Solids ORG17 SOIL Separatory Funnel Extraction of Liquids ORG14 WATER Method Descriptions USEPA SW A The sample extract is analysed by Capillary GC/FID and quantification is by comparison against an established 5 point calibration curve of n-alkane standards. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW B Water samples are directly purged prior to analysis by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. Alternatively, a sample is equilibrated in a headspace vial and a portion of the headspace determined by GCMS analysis. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) Method Descriptions Rayment & Higginson (1992) method 15A1. A 1M NH4Cl extraction by end over end tumbling at a ratio of 1:20. There is no pretreatment for soluble salts. Extracts can be run by ICP for cations. 10 g of soil is mixed with 50 ml of distilled water and tumbled end over end for 1 hour. Water soluble salts are leached from the soil by the continuous suspension. Samples are settled and the water filtered off for analysis. AS , Dichromate oxidation method after Walkley and Black. This method is compliant with NEPM (2013) Schedule B(3) (Method 105) (USEPA SW A) 5g of solid is shaken with surrogate and 10mL methanol prior to analysis by Purge and Trap - GC/MS. In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis. USEPA SW B 100 ml to 1L of sample is transferred to a separatory funnel and serially extracted three times using 60mL DCM for each extract. The resultant extracts are combined, dehydrated and concentrated for analysis. This method is compliant with NEPM (2013) Schedule B(3). ALS default excludes sediment which may be resident in the container.

117 Page : 10 of 10 Work Order : ES Project : A AUSGRID CABLE ROUTE Summary of Outliers Outliers : Quality Control Samples The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This report displays QC Outliers (breaches) only. Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes Matrix: SOIL Compound Group Name Laboratory Control Spike (LCS) Recoveries EG005T: Total Metals by ICP-AES EG005T: Total Metals by ICP-AES EP074E: Halogenated Aliphatic Compounds Laboratory Sample ID Sample ID Analyte CAS Number Cadmium % % Recovery less than lower control limit Lead % % Recovery less than lower control limit Pentachloroethane % % Recovery less than lower control limit Data Limits Comment For all matrices, no Method Blank value outliers occur. For all matrices, no Duplicate outliers occur. For all matrices, no Matrix Spike outliers occur. Regular Sample Surrogates Sub-Matrix: SOIL Compound Group Name Laboratory Sample ID Sample ID Analyte CAS Number Data Samples Submitted EP075(SIM)S: Phenolic Compound Surrogates ES SB1_ Tribromophenol % Outliers : Analysis Holding Time Compliance This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed. No Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples The following report highlights breaches in the Frequency of Quality Control Samples. No Quality Control Sample Frequency Outliers exist. Limits % Comment Recovery less than lower data quality objective

118 False True Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 7 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : 75646, & Date Samples Received : 20-FEB-2015 Sampler : Issue Date : 10-MAR-2015 Site : RHODES No. of samples received : 10 Quote number : EN/008/14 No. of samples analysed : 10 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Surrogate Control Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Peter Blow Position HRMS Chemist Accreditation Category GC/HR-MS Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

119 Page : 2 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting

120 Page : 3 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 Compound Dioxins - Individual 2378-TCDD CAS Number LOR 0.25 Unit pg/g ES ES <0.5 ES ES ES < PeCDD pg/g <2.5 <2.5 <2.4 <2.5 < HxCDD pg/g <2.5 <2.5 <2.4 <2.5 < HxCDD pg/g HxCDD pg/g < HpCDD pg/g OCDD pg/g TCDF pg/g <0.5 < < PeCDF pg/g <2.5 <2.5 <2.4 <2.5 < PeCDF pg/g <2.5 <2.5 <2.4 <2.5 < HxCDF pg/g < < HxCDF pg/g <2.5 <2.5 <2.4 <2.5 < HxCDF pg/g <2.5 <2.5 <2.4 <2.5 < HxCDF pg/g <2.5 <2.5 <2.4 <2.5 < HpCDF pg/g 6.1 < < HpCDF pg/g <2.5 <2.5 <2.4 <2.5 <2.5 OCDF pg/g 25.0 < <4.9 Total TEQ 0 pg/g Dioxins - Total Tetra-Dioxins 0.25 pg/g 18.0 < Penta-Dioxins 1.25 pg/g <22.3 <4.9 <22.0 <24.7 <9.9 Hexa-Dioxins 1.25 pg/g Hepta-Dioxins 1.25 pg/g Octa-Dioxin 5 pg/g Tetra-Furans 0.25 pg/g < Penta-Furans 1.25 pg/g <32.3 <12.3 <22.0 <22.2 <19.7 Hexa-Furans 1.25 pg/g <19.9 <7.4 < Hepta-Furans 1.25 pg/g 17.2 < <2.5 Octa-Furan 2.5 pg/g 25.0 < <4.9 Dioxins - Individual 2378-TCDD (13C12) % PeCDD (13C12) % HxCDD (13C12) % HxCDD (13C12) %

121 Page : 4 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB1_0.5 SB2_1.0 SB8_0.6 SB9_0.1 SB4_1.5 sampling date / time 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 Compound Dioxins - Individual - Continued HpCDD (13C12) CAS Number LOR 0.1 Unit % ES ES ES ES ES OCDD (13C12) % TCDF (13C12) % PeCDF (13C12) % PeCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HpCDF (13C12) % HpCDF (13C12) %

122 Page : 5 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 SB6_1.5 SB7_1.0 SB3_0.2 sampling date / time 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 Compound Dioxins - Individual 2378-TCDD CAS Number LOR 0.25 Unit pg/g ES ES ES <0.5 ES <0.5 ES PeCDD pg/g <2.5 <2.5 < < HxCDD pg/g <2.5 <2.5 < < HxCDD pg/g < < HxCDD pg/g < HpCDD pg/g OCDD pg/g TCDF pg/g <0.5 <0.5 <0.5 <0.5 < PeCDF pg/g <2.5 <2.5 <2.5 <2.5 < PeCDF pg/g <2.5 <2.5 <2.5 <2.5 < HxCDF pg/g <2.5 <2.5 < < HxCDF pg/g <2.5 <2.5 <2.5 <2.5 < HxCDF pg/g <2.5 <2.5 <2.5 <2.5 < HxCDF pg/g <2.5 <2.5 <2.5 <2.5 < HpCDF pg/g <2.5 <2.5 < HpCDF pg/g <2.5 <2.5 <2.5 <2.5 <2.5 OCDF pg/g <5.0 < Total TEQ 0 pg/g Dioxins - Total Tetra-Dioxins 0.25 pg/g Penta-Dioxins 1.25 pg/g <19.7 <27.0 < <20.0 Hexa-Dioxins 1.25 pg/g Hepta-Dioxins 1.25 pg/g Octa-Dioxin 5 pg/g Tetra-Furans 0.25 pg/g 3.2 < <2.9 <0.5 Penta-Furans 1.25 pg/g <9.8 <24.5 <10.0 <9.8 <2.5 Hexa-Furans 1.25 pg/g <19.7 <27.0 <2.5 <7.4 <12.5 Hepta-Furans 1.25 pg/g <5.0 < Octa-Furan 2.5 pg/g <5.0 < Dioxins - Individual 2378-TCDD (13C12) % PeCDD (13C12) % HxCDD (13C12) % HxCDD (13C12) %

123 Page : 6 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB5_0.5 DUP02 SB6_1.5 SB7_1.0 SB3_0.2 sampling date / time 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 20-FEB :00 Compound Dioxins - Individual - Continued HpCDD (13C12) CAS Number LOR 0.1 Unit % ES ES ES ES ES OCDD (13C12) % TCDF (13C12) % PeCDF (13C12) % PeCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HxCDF (13C12) % HpCDF (13C12) % HpCDF (13C12) %

124 Page : 7 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: SOIL Recovery Limits (%) Compound CAS Number Low High Dioxins - Individual 2378-TCDD (13C12) PeCDD (13C12) HxCDD (13C12) HxCDD (13C12) HpCDD (13C12) OCDD (13C12) TCDF (13C12) PeCDF (13C12) PeCDF (13C12) HxCDF (13C12) HxCDF (13C12) HxCDF (13C12) HxCDF (13C12) HpCDF (13C12) HpCDF (13C12)

125

126

127

128 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : C-O-C number : 75646, & Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : RHODES Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 20-FEB-2015 Issue Date : 24-FEB :00 Requested Due Date 10-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 10-MAR-2015 : Carrier Temperature : 19.6'C - Ice bricks present : 2 ESKIES No. of samples received : 10 : N/A No. of samples analysed : 10 Samples received in appropriately pretreated and preserved containers. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. This batch is for Dioxins analysis only and split from ES Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Brisbane. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

129 Issue Date Page Work Order : : : 24-FEB :00 : 2 of 2 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exists. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - HRMS - Combined Dioxins and Furans (SOILS) ES FEB :00 SB1_0.5 ES FEB :00 SB2_1.0 ES FEB :00 SB8_0.6 ES FEB :00 SB9_0.1 ES FEB :00 SB4_1.5 ES FEB :00 SB5_0.5 ES FEB :00 DUP02 ES FEB :00 SB6_1.5 ES FEB :00 SB7_1.0 ES FEB :00 SB3_0.2 Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables KELLIE LYNCH - *AU Certificate of Analysis - NATA kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT kelynch@pb.com.au - A4 - AU Tax Invoice kelynch@pb.com.au - AU Certificate of Analysis - DIOXINS/HRMS ( DIONA ) kelynch@pb.com.au - AU QC Report - DIOXINS/HRMS ( DQCNA ) kelynch@pb.com.au - Chain of Custody (CoC) kelynch@pb.com.au - EDI Format - ENMRG kelynch@pb.com.au - EDI Format - ESDAT kelynch@pb.com.au MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - AU Certificate of Analysis - DIOXINS/HRMS ( DIONA ) ipowell@pb.com.au - AU QC Report - DIOXINS/HRMS ( DQCNA ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

130 CERTIFICATE OF ANALYSIS PARSONS BRINCKERHOFF AUST P/L Laboratory : Environmental Division Sydney Contact Address: Project Order # KELLIE LYNCH GPO BOX 5394 SYDNEY NSW, AUSTRALIA A AUSGRID CABLE ROUT - Not provided - C-O-C # 75646, & Site RHODES kelynch@pb.com.au Contact Address: Quote # LAB.MANAGER.ES Woodpark Road Smithfield NSW 2164 Australia EN/008/14 sydney@alsglobal.com Work Order: Received: Issued Number of Samples ES Feb Mar of 11 Phone Fax Phone Fax Received: Analysed: 10 Notes 1 I -TEQ(zero) and WHO-TEQ(zero) calculated treating <LOR as zero concentration LOR = Limit of reporting 2 I -TEQ(0.5 LOR) and WHO-TEQ(0.5 zero) calculated treating <LOR as 0.5 LoR concentration I-TEF = International toxic equivalency factor 3 I-TEQ(LOR) and WHO-TEQ(LOR) calculated treating <LOR as LoR concentration I-TEQ = International toxic equivalence 4 Totals LORs are calculated by multiplying the number of peaks by the individual LOR per compound WHO-TEF = World Health Organistaion toxic equivalency factor 5 13C12 Rec(%) = The absolute recovery of Isotopically labelled compound added by the Laboratory to WHO-TEQ = World Health Organisation toxic equivalence both quantitate and measure extraction efficiency. Samples analysed 'as received', results reported on 'dry weight' basis. T = tetra Pe = penta Hx = hexa Hp =hepta O = octa CDD, dioxin = chlorinated dibenzo-p-dioxin CDF, furan = chlorinated dibenzofuran ALSE - Excellence in Analytical Testing NATA Accredited Laboratory This document is issued in accordance with NATA's accreditation requirements. This document has been digitally signed by those names that appear on this report and are the authorised signatories. Digital signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatory Peter Blow Position HRMS Chemist Department GC/HR-MS - NATA 825 (818 - Brisbane) Accredited for compliance with ISO/IED 17025

131 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB1_0.5 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans < Penta-Furans < Hexa-Furans < Hepta-Furans Octa-Furan S PCDD/Fs of 11 An ALS Limited Company

132 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB2_1.0 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD < PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF HxCDF < HxCDF < HxCDF < HpCDF < HpCDF < OCDF < Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins < Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans < Hepta-Furans < Octa-Furan < S PCDD/Fs of 11 An ALS Limited Company

133 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB8_0.6 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans < Hepta-Furans Octa-Furan S PCDD/Fs of 11 An ALS Limited Company

134 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB9_0.1 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD HxCDD < HpCDD OCDD TCDF PeCDF < PeCDF < HxCDF HxCDF < HxCDF < HxCDF < HpCDF HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans Hepta-Furans Octa-Furan S PCDD/Fs of 11 An ALS Limited Company

135 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB4_1.5 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD < PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF HxCDF < HxCDF < HxCDF < HpCDF < HpCDF < OCDF < Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans Hepta-Furans < Octa-Furan < S PCDD/Fs of 11 An ALS Limited Company

136 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB5_0.5 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans < Hepta-Furans Octa-Furan S PCDD/Fs of 11 An ALS Limited Company

137 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: DUP02 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans < Penta-Furans < Hexa-Furans < Hepta-Furans Octa-Furan S PCDD/Fs of 11 An ALS Limited Company

138 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB6_1.5 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD < PeCDD < HxCDD < HxCDD < HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF < HpCDF < OCDF < Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans Penta-Furans < Hexa-Furans < Hepta-Furans < Octa-Furan < S PCDD/Fs of 11 An ALS Limited Company

139 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB7_1.0 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD < PeCDD HxCDD HxCDD HxCDD HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF HxCDF < HxCDF < HxCDF < HpCDF < HpCDF < OCDF < Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans < Penta-Furans < Hexa-Furans < Hepta-Furans < Octa-Furan < S PCDD/Fs of 11 An ALS Limited Company

140 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Method Code EP300 Compound Laboratory Sample ID: Sample ID: Conc pg/g LOR pg/g ANALYTICAL RESULTS FOR DIOXINS AND FURANS ES Qc Lot Number: SB3_0.2 Sample Matrix: SOIL WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) Date Sampled: Date Extracted: Date Analysed: 2378-TCDD PeCDD < HxCDD < HxCDD < HxCDD < HpCDD OCDD TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCDF < HpCDF < OCDF Total TEQ I-TEQ3 (LOR) 20-Feb Mar Mar C12 Rec(%) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins Penta-Dioxins < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans < Penta-Furans < Hexa-Furans < Hepta-Furans Octa-Furan S PCDD/Fs Report version : QC_NA of 11 An ALS Limited Company

141 Contact Address: PARSONS BRINCKERHOFF AUST P MS IMOGEN POWELL GPO BOX 5394 SYDNEY NSW, AUSTRALIA 2001 QUALITY CONTROL REPORT Laboratory : Contact Environmental Division Sydney LAB.MANAGER.ES Address: Smithfield NSW 2164 Australia Work Order: ES of 5 Project A AUSGRID CABLE ROUT Order # - Not provided - C-O-C # 75646, & Site RHODES ipowell@pb.com.au Phone Fax Quote # Phone Fax EN/008/14 Received: 20 Feb 2015 Issued 10 Mar 2015 sydney@alsglobal.com Number of Samples Received: Analysed: 11 Samples analysed 'as received', results reported on 'dry weight' basis. ALSE - Excellence in Analytical Testing NATA Accredited Laboratory This document is issued in accordance with NATA's accreditation requirements. Accredited for compliance with ISO/IED This document has been digitally signed by those names that appear on this report and are the authorised signatories. Digital signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatory Position Department Peter Blow HRMS Chemist GC/HR-MS - NATA 825 (818 - Brisbane)

142 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Quality Control Report Laboratory Duplicates (DUP) Original Result Duplicate Result Laboratory Sample Id : Sample Id : Sample Mass (g) : Qc Lot Number : Moisture Content (%) : EB Anonymous Anonymous Compound Conc pg/g LOR pg/g Conc pg/g LOR pg/g RPD (%) 2378-TCDD < < PeCDD < < HxCDD < < HxCDD < < HxCDD < < HpCDD < OCDD TCDF < < PeCDF < < PeCDF < < HxCDF < < HxCDF < < HxCDF < < HxCDF < < HpCDF < < HpCDF < < OCDF < < Group Totals Conc pg/g LOR pg/g Conc pg/g LOR pg/g RPD (%) Tetra-Dioxins < < Penta-Dioxins < < Hexa-Dioxins < < Hepta-Dioxins < Octa-Dioxin Tetra-Furans < < Penta-Furans < < Hexa-Furans < < Hepta-Furans < < Octa-Furan < < S PCDD/Fs Notes LOR = Limit of reporting T = tetra Pe = penta Hx = hexa Hp = hepta O = octa CDD, dioxin = chlorinated debenzo-p-dioxin CDF, furan = chlorinated debenzofuran RPD = relative per cent difference Permitted ranges for RPD are depencant upon the magnitude of the result in comparison to the LOR. Result < 10x LOR, no limit, result between 10x and 20x LOR, 50%; result > 20x LOR, 20% - = Where results are less than the LOR, no RPD is reported. 2 of 5 An ALS Limited Company

143 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Quality Control Report Laboratory Duplicates (DUP) Original Result Duplicate Result Laboratory Sample Id : Sample Id : Sample Mass (g) : Qc Lot Number : Moisture Content (%) : ES SB1_ SB1_ Compound Conc pg/g LOR pg/g Conc pg/g LOR pg/g RPD (%) 2378-TCDD PeCDD < < HxCDD < < HxCDD HxCDD HpCDD OCDD TCDF < < PeCDF < < PeCDF < < HxCDF < < HxCDF < < HxCDF < < HxCDF < < HpCDF HpCDF < < OCDF Group Totals Conc pg/g LOR pg/g Conc pg/g LOR pg/g RPD (%) Tetra-Dioxins Penta-Dioxins < < Hexa-Dioxins Hepta-Dioxins Octa-Dioxin Tetra-Furans < < Penta-Furans < < Hexa-Furans < < Hepta-Furans Octa-Furan S PCDD/Fs Notes LOR = Limit of reporting T = tetra Pe = penta Hx = hexa Hp = hepta O = octa CDD, dioxin = chlorinated debenzo-p-dioxin CDF, furan = chlorinated debenzofuran RPD = relative per cent difference Permitted ranges for RPD are depencant upon the magnitude of the result in comparison to the LOR. Result < 10x LOR, no limit, result between 10x and 20x LOR, 50%; result > 20x LOR, 20% - = Where results are less than the LOR, no RPD is reported. 3 of 5 An ALS Limited Company

144 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Quality Control Results Laboratory Control Samples(LCS) Laboratory Sample Id : QC Lot Number : Sample Name : Compound BCR 529 Sandy soil Conc pg/g Lower 1 pg/g Upper 1 pg/g 13C12 Rec(%) Lower 2 (%) Upper 2 (%) 2378-TCDD PeCDD HxCDD HxCDD HxCDD TCDF PeCDF PeCDF HxCDF HxCDF HxCDF HxCDF Notes 1. Acceptable concentration limits are as quoted on the analytical certificate for the cerified reference material 2. Acceptable recovery limits are derived from EPA1613 Revision B T = tetra Pe = penta Hx = hexa Hp = hepta O = octa 4 of 5 An ALS Limited Company

145 PARSONS BRINCKERHOFF AUST P/L : Work Order : Project : A AUSGRID CABLE ROUTE ALS Quote Reference : ES EN/008/14 Quality Control Report Method Blank (MB) Laboratory Sample ID: Qc Lot Number : Sample Matrix: Date Extracted: Date Analysed: SOIL 04-Mar Mar-2015 Compound Conc pg/g LOR pg/g WHO-TEF WHO-TEQ1 (zero) WHO-TEQ2 (0.5 LOR) WHO-TEQ3 (LOR) I-TEF I-TEQ1 (zero) I-TEQ2 (0.5 LOR) I-TEQ3 (LOR) 13C12 Rec(%) 2378-TCDD < PeCDD < HxCDD < HxCDD < HxCDD < HpCD < OCDD < TCDF < PeCDF < PeCDF < HxCDF < HxCDF < HxCDF < HxCDF < HpCD < HpCD < OCDF < S TEQ(WHO) S TEQ(I) Group Totals Conc pg/g LOR4 pg/g No. of Peaks Tetra-Dioxins < Penta-Dioxins < Hexa-Dioxins < Hepta-Dioxins < Octa-Dioxin < Tetra-Furans < Penta-Furans < Hexa-Furans < Hepta-Furans < Octa-Furan < S PCDD/Fs 0.00 Notes LOR = Limit of reporting I-TEF = International toxic equivalency factor I-TEQ = International toxic equivalence (pg/g) WHO-TEF = World Health Organistaion toxic equivalency factor WHO-TEQ = World Health Organisation toxic equivalence (pg/g) T = tetra Pe = penta Hx = hexa Hp =hepta O = octa CDD, dioxin = chlorinated dibenzo-p-dioxin CDF, furan = chlorinated dibenzofuran 1 I -TEQ(zero) and WHO-TEQ(zero) calculated treating <LOR as zero concentration (pg/g) 2 I-TEQ(0.5 LOR) and WHO-TEQ(0.5 LOR) calculated treating <LOR as 50% LoR concentration (pg/g) 3 I-TEQ(LOR) and WHO-TEQ(LOR) calculated treating <LOR as LoR concentration (pg/g) 4 Totals LORs are calculated by mutiplying the number of peaks by the individual LOR per compound Report version : QC_NA of 5 An ALS Limited Company

146

147

148

149

150

151 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 4 Order number : C-O-C number : Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : MEADOWBANK Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 25-FEB-2015 Issue Date : 26-FEB :26 Requested Due Date 06-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 06-MAR-2015 : Carrier Temperature : 24.2'C : 2 ESKIES No. of samples received : 54 : Not intact. No. of samples analysed : 23 Sample containers do not comply to pretreatment / preservation standards (AS, APHA, USEPA). Please refer to the Sample Container(s)/Preservation Non-Compliance Log at the end of this report for details. Asbestos analysis will be conducted by ALS Newcastle. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Sample TRIP04 sent to Envirolab as per COC Sample ES , 041 ID are SB15_0.2 and SB18_0.5 on the COC, but received labelled as SB15_0.25 on the bottle, Lab will use sample ID as per bottle received. Sample TS and TSC do not mark which analysis on the COC, Lab will conducted TPH C6-C9/BTEX analysis, Please confirm Sample SB14_1.0 was not received, but received extra SB11_1.5 and place on hold, Please confirm Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

152 Issue Date Page Work Order : : : 26-FEB :26 : 2 of 4 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. Method sample ID EA200 : Asbestos Identification in Soils SB13_0.5 DUP04 SB22_1.5 Sample Container Received - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS Preferred Sample Container for Analysis - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID (On Hold) SOIL No analysis requested SOIL - EA002 ph (1:5) SOIL - EA200 Asbestos Identification in Soils - SOIL - ED008 Def Exchangeable Cations with SOIL - EG005T (solids) Total Metals by ICP-AES SOIL - EP004 (Carbon) Organic Matter & Total Organic SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals SOIL - S-18 (NO MOIST) TRH(C6-C9)/BTEXN with No Moisture ES FEB :00 SB10_1.5 ES FEB :00 SB11_1.0 ES FEB :00 SB12_0.5 ES FEB :00 SB14_0.25 ES FEB :00 SB15_0.25 ES FEB :00 SB16_1.5 ES FEB :00 SB17_1.5 ES FEB :00 SB18_1.0 ES FEB :00 SB24_0.16 ES FEB :00 SB13_0.5 ES FEB :00 SB19_1.0 ES FEB :00 DUP04 ES FEB :00 SB20_0.2 ES FEB :00 SB22_1.5 ES FEB :00 SB23_0.5 ES FEB :00 TS9 ES FEB :00 TS8 ES FEB :00 TSC9 ES FEB :00 SB10_0.2 ES FEB :00 SB10_0.5 ES FEB :00 SB11_0.1 ES FEB :00 SB11_0.5 ES FEB :00 SB12_0.1 ES FEB :00 SB12_1.5 ES FEB :00 SB14_0.5 ES FEB :00 SB11_1.5 ES FEB :00 SB14_1.5 ES FEB :00 SB15_0.5 ES FEB :00 SB16_0.25 ES FEB :00 SB16_0.5

153 Issue Date Page Work Order : : : 26-FEB :26 : 3 of 4 ES PARSONS BRINCKERHOFF AUST P/L ES FEB :00 SB17_0.25 ES FEB :00 SB17_0.5 ES FEB :00 SB18_0.25 ES FEB :00 SB18_0.5 ES FEB :00 DUP03 ES FEB :00 TRIP03 ES FEB :00 SB18_1.5 ES FEB :00 SB24_0.5 ES FEB :00 SB24_1.5 ES FEB :00 SB13_0.2 ES FEB :00 SB19_0.2 ES FEB :00 SB19_0.5 ES FEB :00 SB19_1.5 ES FEB :00 SB20_0.5 ES FEB :00 SB20_1.5 ES FEB :00 SB22_0.2 ES FEB :00 SB22_0.5 ES FEB :00 SB23_0.2 ES FEB :00 SB23_1.5 (On Hold) SOIL No analysis requested SOIL - EA002 ph (1:5) SOIL - EA200 Asbestos Identification in Soils - SOIL - ED008 Def Exchangeable Cations with SOIL - EG005T (solids) Total Metals by ICP-AES SOIL - EP004 (Carbon) Organic Matter & Total Organic SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals SOIL - S-18 (NO MOIST) TRH(C6-C9)/BTEXN with No Moisture ES FEB :00 TSC8 Matrix: WATER Laboratory sample ID sampling date / time sample ID WATER - W-07 TRH/BTEXN/PAH ES FEB :00 RB_ ES FEB :00 TB_ ES FEB :00 TB_ ES FEB :00 RB_ Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis.

154 Issue Date Page Work Order : : : 26-FEB :26 : 4 of 4 Requested Deliverables ES PARSONS BRINCKERHOFF AUST P/L MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

155 ES CERTIFICATE OF ANALYSIS Work Order : Page : 1 of 6 Amendment : 1 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : B SYD_WAT_ESA's_VA QC Level : Order number : Date Samples Received : 13-May :45 C-O-C number : Date Analysis Commenced : 14-May-2015 Sampler : Issue Date : 03-Jun :04 Site : VAUCLUSE No. of samples received : 1 Quote number : No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Shobhna Chandra Metals Coordinator Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

156 Page : 2 of 6 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests. This report has been amended and re-released to allow the removal at the clients request of EA200 and EA200N analytical data. Due to an error on the chain of custody asbestos analysis of a duplicate samples was requested. Asbestos results have been removed from this laboratory report. The asbestos result was non-detect This report has been amended due to an error on the chain of custody asbestos analysis of a duplicate samples was requested. Asbestos results have been removed from this laboratory report. The asbestos result was non-detect. EA200: As only one sample container was submitted for multiple tests, at the client's request, sub sampling was conducted prior to Asbestos analysis. As this has the potential to understate detection, results should be scrutinised accordingly. EA200N: Asbestos weights and percentages are not covered under the Scope of NATA Accreditation. Weights of Asbestos are based on extracted bulk asbestos, fibre bundles, and/or ACM and do not include respirable fibres (if present) The Friable Asbestos weight is calculated from the extracted Fibrous Asbestos and Asbestos Fines as an equivalent weight of 100% Asbestos Percentages for Asbestos content in ACM are based on the 2013 NEPM default values. All calculations of percentage Asbestos under this method are approximate and should be used as a guide only. EA200 'Am' Amosite (brown asbestos) EA200 'Cr' Crocidolite (blue asbestos) EA200 'Trace' - Asbestos fibres ("Free Fibres") detected by trace analysis per AS4964. The result can be interpreted that the sample contains detectable 'respirable' asbestos fibres EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining. EA200 Legend EA200 'Ch' Chrysotile (white asbestos) EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended. EA200: Negative results for vinyl tiles should be confirmed by an independent analytical technique. EA200N: ALS laboratory procedures and methods used for the identification and quantitation of asbestos are consistent with AS and the requirements of the 2013 NEPM for Assessment of Site Contamination Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs. EA200: For samples larger than 30g, the <2mm fraction may be sub-sampled prior to trace analysis as outlined in ISO23909:2008(E) Sect

157 Page : 3 of 6 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EA055: Moisture Content ^ Moisture Content 103 C) CAS Number sample ID sampling date / time LOR 1 Unit % DUP1A_VA 12-May :00 ES Result Result Result Result Result 6.6 EG005T: Total Metals by ICP-AES Arsenic mg/kg <5 Cadmium mg/kg <1 Chromium mg/kg 39 Copper mg/kg 14 Lead mg/kg 14 Nickel mg/kg 30 Zinc mg/kg 33 EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 beta-bhc mg/kg <0.05 gamma-bhc mg/kg <0.05 delta-bhc mg/kg <0.05 Heptachlor mg/kg <0.05 Aldrin mg/kg <0.05 Heptachlor epoxide mg/kg <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 trans-chlordane mg/kg <0.05 alpha-endosulfan mg/kg <0.05 cis-chlordane mg/kg <0.05 Dieldrin mg/kg < `-DDE mg/kg <0.05 Endrin mg/kg <0.05 beta-endosulfan mg/kg <0.05 ^ Endosulfan (sum) mg/kg < `-DDD mg/kg <0.05 Endrin aldehyde mg/kg <0.05 Endosulfan sulfate mg/kg < `-DDT mg/kg <0.2

158 Page : 4 of 6 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit DUP1A_VA 12-May :00 ES Result Result Result Result Result EP068A: Organochlorine Pesticides (OC) - Continued Endrin ketone mg/kg <0.05 Methoxychlor mg/kg <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 Demeton-S-methyl mg/kg <0.05 Monocrotophos mg/kg <0.2 Dimethoate mg/kg <0.05 Diazinon mg/kg <0.05 Chlorpyrifos-methyl mg/kg <0.05 Parathion-methyl mg/kg <0.2 Malathion mg/kg <0.05 Fenthion mg/kg <0.05 Chlorpyrifos mg/kg <0.05 Parathion mg/kg <0.2 Pirimphos-ethyl mg/kg <0.05 Chlorfenvinphos mg/kg <0.05 Bromophos-ethyl mg/kg <0.05 Fenamiphos mg/kg <0.05 Prothiofos mg/kg <0.05 Ethion mg/kg <0.05 Carbophenothion mg/kg <0.05 Azinphos Methyl mg/kg <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 Acenaphthylene mg/kg <0.5 Acenaphthene mg/kg <0.5 Fluorene mg/kg <0.5 Phenanthrene mg/kg <0.5 Anthracene mg/kg <0.5 Fluoranthene mg/kg <0.5 Pyrene mg/kg <0.5 Benz(a)anthracene mg/kg <0.5 Chrysene mg/kg <0.5

159 Page : 5 of 6 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit DUP1A_VA 12-May :00 ES Result Result Result Result Result EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued Benzo(b+j)fluoranthene mg/kg <0.5 Benzo(k)fluoranthene mg/kg <0.5 Benzo(a)pyrene mg/kg <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 Dibenz(a.h)anthracene mg/kg <0.5 Benzo(g.h.i)perylene mg/kg <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg 0.6 ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg 1.2 EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction ^ C10 - C14 Fraction C15 - C28 Fraction C29 - C36 Fraction C10 - C36 Fraction (sum) mg/kg mg/kg mg/kg mg/kg mg/kg <10 <50 <100 <100 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 10 mg/kg <10 (F1) >C10 - C16 Fraction >C10_C16 50 mg/kg <50 >C16 - C34 Fraction 100 mg/kg <100 >C34 - C40 Fraction 100 mg/kg <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 ^ >C10 - C16 Fraction minus Naphthalene 50 mg/kg <50 (F2) EP080: BTEXN Benzene mg/kg <0.2 Toluene mg/kg <0.5 Ethylbenzene mg/kg <0.5 meta- & para-xylene mg/kg <0.5 ortho-xylene mg/kg <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 ^ Total Xylenes mg/kg <0.5 Naphthalene mg/kg <1

160 Page : 6 of 6 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit DUP1A_VA 12-May :00 ES Result Result Result Result Result EP066S: PCB Surrogate Decachlorobiphenyl % 100 EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % 98.9 EP068T: Organophosphorus Pesticide Surrogate DEF % 79.3 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 88.0 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 96.6 Anthracene-d % Terphenyl-d % 91.5 EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % 89.6 Toluene-D % Bromofluorobenzene % 94.1

161 True False QUALITY CONTROL REPORT Work Order : ES Page : 1 of 9 Amendment : 1 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : B SYD_WAT_ESA's_VA QC Level : Order number : C-O-C number : Sampler : Site : VAUCLUSE Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 13-May-2015 : 14-May-2015 Issue Date : 03-Jun-2015 No. of samples received : 1 No. of samples analysed : 1 NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Shobhna Chandra Metals Coordinator Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

162 Page : 2 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

163 Page : 3 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: ) ES ES Anonymous DUP1A_VA EG005T: Total Metals by ICP-AES (QC Lot: ) ES ES DUP1A_VA Anonymous EG035T: Total Recoverable Mercury by FIMS (QC Lot: ) ES ES DUP1A_VA Anonymous EP066: Polychlorinated Biphenyls (PCB) (QC Lot: 99412) ES DUP1A_VA EP068A: Organochlorine Pesticides (OC) (QC Lot: 99411) ES DUP1A_VA EA : Moisture Content 103 C) 1 % No Limit EA : Moisture Content 103 C) 1 % No Limit EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg % - 50% EG005T: Nickel mg/kg % - 50% EG005T: Arsenic mg/kg <5 < No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg % - 50% EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg < No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg % - 20% EG035T: Mercury mg/kg <0.1 < No Limit EG035T: Mercury mg/kg <0.1 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit

164 Page : 4 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: 99411) - continued ES DUP1A_VA EP068B: Organophosphorus Pesticides (OP) (QC Lot: 99411) ES DUP1A_VA EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: 99410) ES DUP1A_VA EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit

165 Page : 5 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: 99410) - continued ES DUP1A_VA EP080/071: Total Petroleum Hydrocarbons (QC Lot: 99408) ES Anonymous EP080/071: Total Petroleum Hydrocarbons (QC Lot: 99409) ES DUP1A_VA EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: 99408) ES Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: 99409) ES DUP1A_VA EP080: BTEXN (QC Lot: 99408) ES Anonymous 0.5 mg/kg <0.5 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 < No Limit

166 Page : 6 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005T: Total Metals by ICP-AES (QCLot: ) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg <5 32 mg/kg EG005T: Lead mg/kg <5 40 mg/kg EG005T: Nickel mg/kg <2 55 mg/kg EG005T: Zinc mg/kg < mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG035T: Mercury mg/kg < mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: 99412) EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: 99411) EP068: 4.4`-DDD mg/kg < mg/kg EP068: 4.4`-DDE mg/kg < mg/kg EP068: 4.4`-DDT mg/kg < mg/kg EP068: Aldrin mg/kg < mg/kg EP068: alpha-bhc mg/kg < mg/kg EP068: alpha-endosulfan mg/kg < mg/kg EP068: beta-bhc mg/kg < mg/kg EP068: beta-endosulfan mg/kg < mg/kg EP068: cis-chlordane mg/kg < mg/kg EP068: delta-bhc mg/kg < mg/kg EP068: Dieldrin mg/kg < mg/kg EP068: Endosulfan sulfate mg/kg < mg/kg EP068: Endrin mg/kg < mg/kg EP068: Endrin aldehyde mg/kg < mg/kg EP068: Endrin ketone mg/kg < mg/kg EP068: gamma-bhc mg/kg < mg/kg EP068: Heptachlor mg/kg < mg/kg EP068: Heptachlor epoxide mg/kg < mg/kg EP068: Hexachlorobenzene (HCB) mg/kg < mg/kg EP068: Methoxychlor mg/kg < mg/kg EP068: trans-chlordane mg/kg < mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: 99411)

167 Page : 7 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068B: Organophosphorus Pesticides (OP) (QCLot: 99411) - continued EP068: Azinphos Methyl mg/kg < mg/kg EP068: Bromophos-ethyl mg/kg < mg/kg EP068: Carbophenothion mg/kg < mg/kg EP068: Chlorfenvinphos mg/kg < mg/kg EP068: Chlorpyrifos mg/kg < mg/kg EP068: Chlorpyrifos-methyl mg/kg < mg/kg EP068: Demeton-S-methyl mg/kg < mg/kg EP068: Diazinon mg/kg < mg/kg EP068: Dichlorvos mg/kg < mg/kg EP068: Dimethoate mg/kg < mg/kg EP068: Ethion mg/kg < mg/kg EP068: Fenamiphos mg/kg < mg/kg EP068: Fenthion mg/kg < mg/kg EP068: Malathion mg/kg < mg/kg EP068: Monocrotophos mg/kg < mg/kg EP068: Parathion mg/kg < mg/kg EP068: Parathion-methyl mg/kg < mg/kg EP068: Pirimphos-ethyl mg/kg < mg/kg EP068: Prothiofos mg/kg < mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: 99410) EP075(SIM): Acenaphthene mg/kg <0.5 6 mg/kg EP075(SIM): Acenaphthylene mg/kg <0.5 6 mg/kg EP075(SIM): Anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Chrysene mg/kg <0.5 6 mg/kg EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Fluorene mg/kg <0.5 6 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Naphthalene mg/kg <0.5 6 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 6 mg/kg EP075(SIM): Pyrene mg/kg <0.5 6 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 99408) EP080: C6 - C9 Fraction 10 mg/kg <10 26 mg/kg

168 Page : 8 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080/071: Total Petroleum Hydrocarbons (QCLot: 99409) EP071: C10 - C14 Fraction 50 mg/kg < mg/kg EP071: C15 - C28 Fraction 100 mg/kg < mg/kg EP071: C29 - C36 Fraction 100 mg/kg < mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 99408) EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 31 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 99409) EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg < mg/kg EP071: >C16 - C34 Fraction 100 mg/kg < mg/kg EP071: >C34 - C40 Fraction 100 mg/kg < mg/kg EP080: BTEXN (QCLot: 99408) EP080: Benzene mg/kg <0.2 1 mg/kg EP080: Ethylbenzene mg/kg <0.5 1 mg/kg EP080: meta- & para-xylene mg/kg <0.5 2 mg/kg EP080: Naphthalene mg/kg <1 1 mg/kg EP080: ortho-xylene mg/kg <0.5 1 mg/kg EP080: Toluene mg/kg <0.5 1 mg/kg Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005T: Arsenic mg/kg EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG005T: Zinc MS Low High 250 mg/kg # Not Determined ES DUP1A_VA EG035T: Mercury mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: 99412) ES DUP1A_VA EP066: Total Polychlorinated biphenyls 1 mg/kg

169 Page : 9 of 9 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP068A: Organochlorine Pesticides (OC) (QCLot: 99411) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES DUP1A_VA EP068: 4.4`-DDT mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: gamma-bhc mg/kg EP068: Heptachlor mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: 99411) ES DUP1A_VA EP068: Bromophos-ethyl mg/kg EP068: Chlorpyrifos-methyl mg/kg EP068: Diazinon mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Prothiofos mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: 99410) ES DUP1A_VA EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 99408) ES Anonymous EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 99409) ES DUP1A_VA EP071: C10 - C14 Fraction 523 mg/kg EP071: C15 - C28 Fraction 2319 mg/kg EP071: C29 - C36 Fraction 1714 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 99408) ES Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 99409) ES DUP1A_VA EP080: BTEXN (QCLot: 99408) EP080: C6 - C10 Fraction C6_C mg/kg EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 3223 mg/kg EP071: >C34 - C40 Fraction 1058 mg/kg ES Anonymous EP080: Benzene mg/kg EP080: Ethylbenzene mg/kg EP080: meta- & para-xylene mg/kg EP080: Naphthalene mg/kg EP080: ortho-xylene mg/kg EP080: Toluene mg/kg MS Low High

170 True QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 5 Amendment : 1 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : B SYD_WAT_ESA's_VA Date Samples Received : 13-May-2015 Site : VAUCLUSE Issue Date : 03-Jun-2015 Sampler : No. of samples received : 1 Order number : No. of samples analysed : 1 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. Matrix Spike outliers exist - please see following pages for full details. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples NO Quality Control Sample Frequency Outliers exist. R I G H T S O L U T I O N S R I G H T P A R T N E R

171 Page : 2 of 5 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Outliers : Quality Control Samples Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes Matrix: SOIL Compound Group Name Matrix Spike (MS) Recoveries EG005T: Total Metals by ICP-AES Laboratory Sample ID Sample ID Analyte CAS Number ES Anonymous Zinc Data Not Determined Limits Comment MS recovery not determined, background level greater than or equal to 4x spike level. Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) DUP1A_VA EA200: AS Identification of Asbestos in bulk samples Snap Lock Bag - Subsampled by ALS (EA200) DUP1A_VA EA200N: Asbestos Quantification (non-nata) Snap Lock Bag - Subsampled by ALS (EA200N) DUP1A_VA EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) DUP1A_VA EG035T: Total Recoverable Mercury by FIMS Soil Glass Jar - Unpreserved (EG035T) DUP1A_VA EP066: Polychlorinated Biphenyls (PCB) Soil Glass Jar - Unpreserved (EP066) DUP1A_VA EP068A: Organochlorine Pesticides (OC) Soil Glass Jar - Unpreserved (EP068) DUP1A_VA EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP071) DUP1A_VA 12-May May May May May Nov May May Nov May May Nov May Nov May May Jun May Jun May May May May Jun May May May May Jun May May May May Jun-2015

172 Page : 3 of 5 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) DUP1A_VA EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP080) DUP1A_VA 12-May May May May Jun May May May May May-2015

173 Page : 4 of 5 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Moisture Content PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method EA EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

174 Page : 5 of 5 Work Order : ES Amendment 1 Project : B SYD_WAT_ESA's_VA Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL Total Metals by ICP-AES EG005T SOIL Total Mercury by FIMS EG035T SOIL Polychlorinated Biphenyls (PCB) EP066 SOIL Pesticides by GCMS EP068 SOIL TRH - Semivolatile Fraction EP071 SOIL PAH/Phenols (SIM) EP075(SIM) SOIL TRH Volatiles/BTEX EP080 SOIL Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). In house: Referenced to APHA 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS 3550, APHA 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 504) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This technique is compliant with NEPM (2013) Schedule B(3) (Method 504,505) (USEPA SW A) Sample extracts are analysed by Capillary GC/FID and quantified against alkane standards over the range C10 - C40. (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve. Preparation Methods Method Matrix Methanolic Extraction of Soils for Purge * ORG16 SOIL and Trap Tumbler Extraction of Solids ORG17 SOIL Method Descriptions (USEPA SW A) 5g of solid is shaken with surrogate and 10mL methanol prior to analysis by Purge and Trap - GC/MS. In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis.

175

176

177 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 3 Order number : C-O-C number : & Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : RYDE Sampler : KL QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 27-FEB-2015 Issue Date : 02-MAR :46 Requested Due Date 06-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 06-MAR-2015 : Carrier Temperature : 25.7'C : 1 ESKY No. of samples received : 26 : Intact. No. of samples analysed : 10 Samples received in appropriately pretreated and preserved containers. Asbestos analysis will be conducted by ALS Newcastle. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Sample(s) requiring volatile organic compound analysis received in airtight containers (ZHE). Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

178 Issue Date Page Work Order : : : 02-MAR :46 : 2 of 3 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exists. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID (On Hold) SOIL No analysis requested SOIL - EA200 Asbestos Identification in Soils - Presence/Absence ES FEB :00 SB37_1.5 ES FEB :00 SB21_1.5 ES FEB :00 SB30_1.0 ES FEB :00 SB36A_0.2 ES FEB :00 SB34A_1.0 ES FEB :00 SB35A_0.5 ES FEB :00 SB15A_0.5 ES FEB :00 SB15A_1.5 SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals ES FEB :00 TRIP SPIKE ES FEB :00 TSC ES FEB :00 SB31_0.2 ES FEB :00 SB37_0.2 ES FEB :00 SB37_0.5 ES FEB :00 SB21_0.2 ES FEB :00 SB21_0.5 ES FEB :00 SB30_0.2 ES FEB :00 SB30_0.5 ES FEB :00 SB30_1.5 ES FEB :00 SB36A_0.5 ES FEB :00 SB34A_0.2 ES FEB :00 SB34A_0.5 ES FEB :00 SB34A_1.5 ES FEB :00 SB35A_0.1 ES FEB :00 SB35A_1.5 SOIL - S-18 (NO MOIST) TRH(C6-C9)/BTEXN with No Moisture for TBs

179 Issue Date Page Work Order : : : 02-MAR :46 : 3 of 3 ES PARSONS BRINCKERHOFF AUST P/L Matrix: WATER Laboratory sample ID sampling date / time sample ID WATER - W-07 TRH/BTEXN/PAH ES FEB :00 RB_ ES FEB :00 TB_ Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables KELLIE LYNCH - *AU Certificate of Analysis - NATA kelynch@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) kelynch@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT kelynch@pb.com.au - A4 - AU Tax Invoice kelynch@pb.com.au - Chain of Custody (CoC) kelynch@pb.com.au - EDI Format - ENMRG kelynch@pb.com.au - EDI Format - ESDAT kelynch@pb.com.au MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

180 False True Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 13 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : & Date Samples Received : 27-FEB-2015 Sampler : KL Issue Date : 09-MAR-2015 Site : RYDE No. of samples received : 26 Quote number : EN/008/14 No. of samples analysed : 10 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Descriptive Results Surrogate Control Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Ashesh Patel Gerrad Morgan Phalak Inthakesone Wisam Marassa Position Inorganic Chemist Asbestos Identifier Laboratory Manager - Organics Inorganics Coordinator Accreditation Category Sydney Inorganics Newcastle - Asbestos Sydney Organics Sydney Inorganics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

181 Page : 2 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs. Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero. EA200 Legend EA200 'Am' EA200 'Ch' EA200 'Cr' Amosite (brown asbestos) Chrysotile (white asbestos) Crocidolite (blue asbestos) EA200 'Trace' - Asbestos fibres ("Free Fibres") detected by trace analysis per AS4964. The result can be interpreted that the sample contains detectable 'respirable' asbestos fibres EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended. EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining. EA200: Negative results for vinyl tiles should be confirmed by an independent analytical technique. ED007 and ED008: When Exchangeable Al is reported from these methods, it should be noted that Rayment & Lyons (2011) suggests Exchange Acidity by 1M KCl (Method 15G1) is a more suitable method for the determination of exchange acidity (H+ + Al3+). EP068: Particular samples required dilution due to matrix interferences. LOR values have been adjusted accordingly. EP080:The TRIP SPIKE and TRIP SPIKE CONTROL have been analysed for volatile TPH and BTEX only. The TRIP SPIKE and TRIP SPIKE CONTROL were prepared in the lab using reagent grade sand spiked with petrol. The TRIP SPIKE was dispatched from the lab and the TRIP SPIKE CONTROL retained. The spike samples were extracted and analysed concurrently with samples reported in this batch.

182 Page : 3 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB37_1.5 SB21_1.5 SB30_1.0 SB36A_0.2 SB34A_1.0 Compound CAS Number sampling date / time LOR Unit 26-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 EA055: Moisture Content Moisture Content 103 C) 1.0 % < EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg ES No No No No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- G.MORGAN G.MORGAN G.MORGAN G.MORGAN G.MORGAN EG005T: Total Metals by ICP-AES Arsenic mg/kg <5 7 Cadmium mg/kg 1 <1 2 <1 2 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg <2 <2 <2 6 6 Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Aldrin mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Dieldrin mg/kg <0.05 <0.05 <0.05 <0.25 < `-DDE mg/kg <0.05 <0.05 <0.05 <0.25 <0.05

183 Page : 4 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB37_1.5 SB21_1.5 SB30_1.0 SB36A_0.2 SB34A_1.0 sampling date / time 26-FEB :00 25-FEB :00 25-FEB :00 26-FEB :00 26-FEB :00 Compound CAS Number LOR Unit ES ES ES ES ES EP068A: Organochlorine Pesticides (OC) - Continued Endrin mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 beta-endosulfan mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 <0.05 <0.25 < `-DDD mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 <0.05 <0.25 < `-DDT mg/kg <0.2 <0.2 <0.2 <1.0 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 <1.0 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 <1.0 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 <1.0 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 <1.0 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Prothiofos mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 <0.25 <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5

184 Page : 5 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB37_1.5 SB21_1.5 SB30_1.0 SB36A_0.2 SB34A_1.0 Compound CAS Number EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued sampling date / time LOR Unit 26-FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 ES FEB :00 Acenaphthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 < <0.5 Anthracene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5 < <0.5 Pyrene mg/kg <0.5 <0.5 < <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 < <0.5 Chrysene mg/kg <0.5 <0.5 < <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 < <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 < <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 <10 <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 < <100 C29 - C36 Fraction 100 mg/kg <100 <100 < <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 < <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 <10 <10 <10 ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 10 mg/kg ES <10 <10 <10 <10 <10 >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 < <100 >C34 - C40 Fraction 100 mg/kg <100 <100 < <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 < <50 ^ >C10 - C16 Fraction minus Naphthalene (F2) 50 mg/kg <50 <50 <50 <50 <50

185 Page : 6 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB37_1.5 SB21_1.5 SB30_1.0 SB36A_0.2 SB34A_1.0 sampling date / time 26-FEB :00 25-FEB :00 25-FEB :00 26-FEB :00 26-FEB :00 Compound EP080: BTEXN Benzene CAS Number LOR 0.2 Unit mg/kg ES <0.2 ES <0.2 ES <0.2 ES <0.2 ES <0.2 Toluene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 < <0.5 ortho-xylene mg/kg <0.5 <0.5 < <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 < <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 < <0.5 Naphthalene mg/kg <1 <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

186 Page : 7 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB35A_0.5 TRIP SPIKE TSC sampling date / time 26-FEB :00 16-FEB :00 16-FEB :00 Compound EA055: Moisture Content Moisture Content 103 C) CAS Number LOR 1.0 Unit % ES ES ES EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg No Asbestos Type Sample weight (dry) 0.01 g 147 APPROVED IDENTIFIER: - -- G.MORGAN EG005T: Total Metals by ICP-AES Arsenic mg/kg 18 Cadmium mg/kg 1 Chromium mg/kg 16 Copper mg/kg 21 Lead mg/kg 24 Nickel mg/kg <2 Zinc mg/kg <5 EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls 0.1 mg/kg <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 beta-bhc mg/kg <0.05 gamma-bhc mg/kg <0.05 delta-bhc mg/kg <0.05 Heptachlor mg/kg <0.05 Aldrin mg/kg <0.05 Heptachlor epoxide mg/kg <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 trans-chlordane mg/kg <0.05 alpha-endosulfan mg/kg <0.05 cis-chlordane mg/kg <0.05 Dieldrin mg/kg < `-DDE mg/kg <0.05

187 Page : 8 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB35A_0.5 TRIP SPIKE TSC sampling date / time 26-FEB :00 16-FEB :00 16-FEB :00 Compound CAS Number LOR Unit ES ES ES EP068A: Organochlorine Pesticides (OC) - Continued Endrin mg/kg <0.05 beta-endosulfan mg/kg <0.05 ^ Endosulfan (sum) mg/kg < `-DDD mg/kg <0.05 Endrin aldehyde mg/kg <0.05 Endosulfan sulfate mg/kg < `-DDT mg/kg <0.2 Endrin ketone mg/kg <0.05 Methoxychlor mg/kg <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 Demeton-S-methyl mg/kg <0.05 Monocrotophos mg/kg <0.2 Dimethoate mg/kg <0.05 Diazinon mg/kg <0.05 Chlorpyrifos-methyl mg/kg <0.05 Parathion-methyl mg/kg <0.2 Malathion mg/kg <0.05 Fenthion mg/kg <0.05 Chlorpyrifos mg/kg <0.05 Parathion mg/kg <0.2 Pirimphos-ethyl mg/kg <0.05 Chlorfenvinphos mg/kg <0.05 Bromophos-ethyl mg/kg <0.05 Fenamiphos mg/kg <0.05 Prothiofos mg/kg <0.05 Ethion mg/kg <0.05 Carbophenothion mg/kg <0.05 Azinphos Methyl mg/kg <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 Acenaphthylene mg/kg <0.5

188 Page : 9 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB35A_0.5 TRIP SPIKE TSC Compound CAS Number EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued sampling date / time LOR Unit 26-FEB :00 ES FEB :00 ES FEB :00 ES Acenaphthene mg/kg <0.5 Fluorene mg/kg <0.5 Phenanthrene mg/kg <0.5 Anthracene mg/kg <0.5 Fluoranthene mg/kg <0.5 Pyrene mg/kg <0.5 Benz(a)anthracene mg/kg <0.5 Chrysene mg/kg <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 Benzo(k)fluoranthene mg/kg <0.5 Benzo(a)pyrene mg/kg <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 Dibenz(a.h)anthracene mg/kg <0.5 Benzo(g.h.i)perylene mg/kg <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg 0.6 ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg 1.2 EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg < C10 - C14 Fraction 50 mg/kg <50 C15 - C28 Fraction 100 mg/kg <100 C29 - C36 Fraction 100 mg/kg <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg < ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 10 mg/kg < >C10 - C16 Fraction >C10_C16 50 mg/kg <50 >C16 - C34 Fraction 100 mg/kg <100 >C34 - C40 Fraction 100 mg/kg <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 ^ >C10 - C16 Fraction minus Naphthalene (F2) 50 mg/kg <50

189 Page : 10 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB35A_0.5 TRIP SPIKE TSC sampling date / time 26-FEB :00 16-FEB :00 16-FEB :00 Compound EP080: BTEXN Benzene CAS Number LOR 0.2 Unit mg/kg ES <0.2 ES <0.2 ES <0.2 Toluene mg/kg < Ethylbenzene mg/kg < meta- & para-xylene mg/kg < ortho-xylene mg/kg < ^ Sum of BTEX 0.2 mg/kg < ^ Total Xylenes mg/kg < Naphthalene mg/kg <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % 71.1 EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % 79.3 EP068T: Organophosphorus Pesticide Surrogate DEF % 96.2 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 87.1 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 95.2 Anthracene-d % Terphenyl-d % 78.6 EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

190 Page : 11 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) sample ID RB_ TB_ Compound CAS Number sampling date / time LOR Unit 26-FEB :00 ES FEB :00 ES EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene µg/l <1.0 <1.0 Acenaphthylene µg/l <1.0 <1.0 Acenaphthene µg/l <1.0 <1.0 Fluorene µg/l <1.0 <1.0 Phenanthrene µg/l <1.0 <1.0 Anthracene µg/l <1.0 <1.0 Fluoranthene µg/l <1.0 <1.0 Pyrene µg/l <1.0 <1.0 Benz(a)anthracene µg/l <1.0 <1.0 Chrysene µg/l <1.0 <1.0 Benzo(b+j)fluoranthene µg/l <1.0 <1.0 Benzo(k)fluoranthene µg/l <1.0 <1.0 Benzo(a)pyrene µg/l <0.5 <0.5 Indeno(1.2.3.cd)pyrene µg/l <1.0 <1.0 Dibenz(a.h)anthracene µg/l <1.0 <1.0 Benzo(g.h.i)perylene µg/l <1.0 <1.0 ^ Sum of polycyclic aromatic hydrocarbons 0.5 µg/l <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 µg/l <0.5 <0.5 EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 20 µg/l <20 <20 C10 - C14 Fraction 50 µg/l <50 <50 C15 - C28 Fraction 100 µg/l <100 <100 C29 - C36 Fraction 50 µg/l <50 <50 ^ C10 - C36 Fraction (sum) 50 µg/l <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 20 µg/l <20 <20 ^ C6 - C10 Fraction minus BTEX (F1) C6_C10-BTEX 20 µg/l <20 <20 >C10 - C16 Fraction >C10_C µg/l <100 <100 >C16 - C34 Fraction 100 µg/l <100 <100 >C34 - C40 Fraction 100 µg/l <100 <100 ^ >C10 - C40 Fraction (sum) 100 µg/l <100 <100 ^ >C10 - C16 Fraction minus Naphthalene (F2) 100 µg/l <100 <100

191 Page : 12 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) sample ID RB_ TB_ Compound CAS Number sampling date / time LOR Unit 26-FEB :00 ES FEB :00 ES EP080: BTEXN Benzene µg/l <1 <1 Toluene µg/l <2 <2 Ethylbenzene µg/l <2 <2 meta- & para-xylene µg/l <2 <2 ortho-xylene µg/l <2 <2 ^ Total Xylenes µg/l <2 <2 ^ Sum of BTEX 1 µg/l <1 <1 Naphthalene µg/l <5 <5 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene % Analytical Results Descriptive Results Sub-Matrix: SOIL Method: Compound sample ID - sampling date / time EA200: AS Identification of Asbestos in bulk samples EA200: Description SB37_ FEB :00 EA200: Description SB21_ FEB :00 EA200: Description SB30_ FEB :00 EA200: Description SB36A_ FEB :00 EA200: Description SB34A_ FEB :00 EA200: Description SB35A_ FEB :00 Analytical Results Pale grey-brown clay soil with a trace of vegetation. Pale grey-brown clay soil with a trace of vegetation. Pale red-brown clay soil with a trace of vegetation. Dark brown clay soil with grey rocks. Mid brown clay soil with grey and orange rocks. Mid orange-brown clay soil with grey rocks.

192 Page : 13 of 13 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: SOIL Recovery Limits (%) Compound CAS Number Low High EP066S: PCB Surrogate Decachlorobiphenyl EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE EP068T: Organophosphorus Pesticide Surrogate DEF EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D Toluene-D Bromofluorobenzene Sub-Matrix: WATER Recovery Limits (%) Compound CAS Number Low High EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D Toluene-D Bromofluorobenzene

193 False False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 16 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RYDE C-O-C number : & Date Samples Received : 27-FEB-2015 Sampler : KL Issue Date : 09-MAR-2015 Order number : No. of samples received : 26 Quote number : EN/008/14 No. of samples analysed : 10 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

194 Page : 2 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Ashesh Patel Inorganic Chemist Sydney Inorganics Gerrad Morgan Asbestos Identifier Newcastle - Asbestos Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Wisam Marassa Inorganics Coordinator Sydney Inorganics

195 Page : 3 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: ) ES ES SB37_1.5 Anonymous EG005T: Total Metals by ICP-AES (QC Lot: ) ES ES Anonymous SB21_1.5 EG035T: Total Recoverable Mercury by FIMS (QC Lot: ) ES ES Anonymous SB21_1.5 EP066: Polychlorinated Biphenyls (PCB) (QC Lot: ) ES SB37_1.5 EP068A: Organochlorine Pesticides (OC) (QC Lot: ) ES SB37_1.5 EA : Moisture Content 103 C) 1.0 % No Limit EA : Moisture Content 103 C) 1.0 % No Limit EG005T: Cadmium mg/kg No Limit EG005T: Chromium mg/kg % - 50% EG005T: Nickel mg/kg % - 50% EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg % - 50% EG005T: Zinc mg/kg % - 20% EG005T: Cadmium mg/kg <1 <1 0.0 No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg <2 <2 0.0 No Limit EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg 6 < No Limit EG035T: Mercury mg/kg No Limit EG035T: Mercury mg/kg <0.1 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit

196 Page : 4 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: ) - continued ES SB37_1.5 EP068B: Organophosphorus Pesticides (OP) (QC Lot: ) ES SB37_1.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) ES SB37_1.5 EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit

197 Page : 5 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) - continued ES ES SB37_1.5 Anonymous EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES Anonymous Anonymous EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES SB37_1.5 Anonymous EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg No Limit EP075(SIM): Anthracene mg/kg No Limit EP075(SIM): Fluoranthene mg/kg No Limit EP075(SIM): Pyrene mg/kg No Limit EP075(SIM): Benz(a)anthracene mg/kg No Limit EP075(SIM): Chrysene mg/kg No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg No Limit EP075(SIM): Benzo(a)pyrene mg/kg No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg % - 20% EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP071: C15 - C28 Fraction 100 mg/kg No Limit EP071: C29 - C36 Fraction 100 mg/kg No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit

198 Page : 6 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES SB37_1.5 Anonymous EP080: BTEXN (QC Lot: ) ES ES Sub-Matrix: WATER Anonymous Anonymous EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg No Limit EP071: >C34 - C40 Fraction 100 mg/kg No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 <1 0.0 No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 <1 0.0 No Limit Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES Anonymous Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous Anonymous EP080: BTEXN (QC Lot: ) ES Anonymous EP080: C6 - C9 Fraction 20 µg/l % - 20% EP080: C6 - C9 Fraction 20 µg/l No Limit EP080: C6 - C10 Fraction C6_C10 20 µg/l % - 20% EP080: C6 - C10 Fraction C6_C10 20 µg/l No Limit EP080: Benzene µg/l <1 <1 0.0 No Limit EP080: Toluene µg/l <2 <2 0.0 No Limit EP080: Ethylbenzene µg/l <2 <2 0.0 No Limit EP080: meta- & para-xylene µg/l No Limit EP080: ortho-xylene µg/l No Limit

199 Page : 7 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080: BTEXN (QC Lot: ) - continued ES ES Anonymous Anonymous EP080: Naphthalene µg/l <5 <5 0.0 No Limit EP080: Benzene µg/l <1 <1 0.0 No Limit EP080: Toluene µg/l <2 <2 0.0 No Limit EP080: Ethylbenzene µg/l <2 <2 0.0 No Limit EP080: meta- & para-xylene µg/l <2 <2 0.0 No Limit EP080: ortho-xylene µg/l <2 <2 0.0 No Limit EP080: Naphthalene µg/l <5 <5 0.0 No Limit

200 Page : 8 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Spike (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005T: Total Metals by ICP-AES (QCLot: ) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg < mg/kg EG005T: Lead mg/kg < mg/kg EG005T: Nickel mg/kg < mg/kg EG005T: Zinc mg/kg < mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG035T: Mercury mg/kg < mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) EP068: alpha-bhc mg/kg < mg/kg EP068: Hexachlorobenzene (HCB) mg/kg < mg/kg EP068: beta-bhc mg/kg < mg/kg EP068: gamma-bhc mg/kg < mg/kg EP068: delta-bhc mg/kg < mg/kg EP068: Heptachlor mg/kg < mg/kg EP068: Aldrin mg/kg < mg/kg EP068: Heptachlor epoxide mg/kg < mg/kg EP068: trans-chlordane mg/kg < mg/kg EP068: alpha-endosulfan mg/kg < mg/kg EP068: cis-chlordane mg/kg < mg/kg EP068: Dieldrin mg/kg < mg/kg EP068: 4.4`-DDE mg/kg < mg/kg EP068: Endrin mg/kg < mg/kg

201 Page : 9 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068A: Organochlorine Pesticides (OC) (QCLot: ) - continued EP068: beta-endosulfan mg/kg < mg/kg EP068: 4.4`-DDD mg/kg < mg/kg EP068: Endrin aldehyde mg/kg < mg/kg EP068: Endosulfan sulfate mg/kg < mg/kg EP068: 4.4`-DDT mg/kg < mg/kg EP068: Endrin ketone mg/kg < mg/kg EP068: Methoxychlor mg/kg < mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) EP068: Dichlorvos mg/kg < mg/kg EP068: Demeton-S-methyl mg/kg < mg/kg EP068: Monocrotophos mg/kg < mg/kg EP068: Dimethoate mg/kg < mg/kg EP068: Diazinon mg/kg < mg/kg EP068: Chlorpyrifos-methyl mg/kg < mg/kg EP068: Parathion-methyl mg/kg < mg/kg EP068: Malathion mg/kg < mg/kg EP068: Fenthion mg/kg < mg/kg EP068: Chlorpyrifos mg/kg < mg/kg EP068: Parathion mg/kg < mg/kg EP068: Pirimphos-ethyl mg/kg < mg/kg EP068: Chlorfenvinphos mg/kg < mg/kg EP068: Bromophos-ethyl mg/kg < mg/kg EP068: Fenamiphos mg/kg < mg/kg EP068: Prothiofos mg/kg < mg/kg EP068: Ethion mg/kg < mg/kg EP068: Carbophenothion mg/kg < mg/kg EP068: Azinphos Methyl mg/kg < mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene mg/kg <0.5 4 mg/kg

202 Page : 10 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) - continued EP075(SIM): Acenaphthylene mg/kg <0.5 4 mg/kg EP075(SIM): Acenaphthene mg/kg <0.5 4 mg/kg EP075(SIM): Fluorene mg/kg <0.5 4 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 4 mg/kg EP075(SIM): Anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Chrysene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 4 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 10 mg/kg <10 26 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 mg/kg < mg/kg EP071: C15 - C28 Fraction 100 mg/kg < mg/kg EP071: C29 - C36 Fraction 100 mg/kg < mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 31 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg < mg/kg EP071: >C16 - C34 Fraction 100 mg/kg < mg/kg EP071: >C34 - C40 Fraction 50 mg/kg < mg/kg EP080: BTEXN (QCLot: ) EP080: Benzene mg/kg <0.2 1 mg/kg

203 Page : 11 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080: BTEXN (QCLot: ) - continued EP080: Toluene mg/kg <0.5 1 mg/kg EP080: Ethylbenzene mg/kg <0.5 1 mg/kg EP080: meta- & para-xylene mg/kg <0.5 2 mg/kg EP080: ortho-xylene mg/kg <0.5 1 mg/kg EP080: Naphthalene mg/kg <1 1 mg/kg Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthylene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthene µg/l <1.0 5 µg/l EP075(SIM): Fluorene µg/l <1.0 5 µg/l EP075(SIM): Phenanthrene µg/l <1.0 5 µg/l EP075(SIM): Anthracene µg/l <1.0 5 µg/l EP075(SIM): Fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Pyrene µg/l <1.0 5 µg/l EP075(SIM): Benz(a)anthracene µg/l <1.0 5 µg/l EP075(SIM): Chrysene µg/l <1.0 5 µg/l EP075(SIM): Benzo(b+j)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(k)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l EP075(SIM): Indeno(1.2.3.cd)pyrene µg/l <1.0 5 µg/l EP075(SIM): Dibenz(a.h)anthracene µg/l <1.0 5 µg/l EP075(SIM): Benzo(g.h.i)perylene µg/l <1.0 5 µg/l EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 µg/l < µg/l EP071: C15 - C28 Fraction 100 µg/l < µg/l EP071: C29 - C36 Fraction 50 µg/l < µg/l

204 Page : 12 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 20 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C µg/l < µg/l EP071: >C16 - C34 Fraction 100 µg/l < µg/l EP071: >C34 - C40 Fraction 50 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 20 µg/l < µg/l EP080: BTEXN (QCLot: ) EP080: Benzene µg/l <1 10 µg/l EP080: Toluene µg/l <2 10 µg/l EP080: Ethylbenzene µg/l <2 10 µg/l EP080: meta- & para-xylene µg/l <2 10 µg/l EP080: ortho-xylene µg/l <2 10 µg/l EP080: Naphthalene µg/l <5 10 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005T: Arsenic mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg ES Anonymous EG035T: Mercury mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) MS Low High

205 Page : 13 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES SB37_1.5 EP066: Total Polychlorinated biphenyls 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) ES SB37_1.5 EP068: gamma-bhc mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) EP068: Heptachlor mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: 4.4`-DDT mg/kg ES SB37_1.5 EP068: Diazinon mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP068: Chlorpyrifos-methyl mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Bromophos-ethyl mg/kg EP068: Prothiofos mg/kg ES SB37_1.5 EP075(SIM): Acenaphthene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP075(SIM): Pyrene mg/kg ES Anonymous EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES SB37_1.5 EP071: C10 - C14 Fraction 640 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES SB37_1.5 EP080: BTEXN (QCLot: ) EP071: C15 - C28 Fraction 3140 mg/kg EP071: C29 - C36 Fraction 2860 mg/kg EP080: C6 - C10 Fraction C6_C mg/kg EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 4800 mg/kg EP071: >C34 - C40 Fraction 2400 mg/kg ES Anonymous EP080: Benzene mg/kg EP080: Toluene mg/kg EP080: Ethylbenzene mg/kg EP080: meta- & para-xylene mg/kg MS Low High

206 Page : 14 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP080: BTEXN (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP080: ortho-xylene mg/kg Sub-Matrix: WATER EP080: Naphthalene mg/kg Laboratory sample ID sample ID Method: Compound CAS Number EP080/071: Total Petroleum Hydrocarbons (QCLot: ) Spike Concentration MS Matrix Spike (MS) Report Low SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP080: C6 - C9 Fraction 325 µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: BTEXN (QCLot: ) EP080: C6 - C10 Fraction C6_C µg/l ES Anonymous EP080: Benzene µg/l EP080: Toluene µg/l EP080: Ethylbenzene µg/l EP080: meta- & para-xylene µg/l EP080: ortho-xylene µg/l EP080: Naphthalene µg/l MS Low High High Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES Anonymous EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: C6 - C10 Fraction C6_C mg/kg EP080: BTEXN (QCLot: ) ES Anonymous EP080: Benzene mg/kg MS MSD Low High Value RPDs (%) EP080: Toluene mg/kg EP080: Ethylbenzene mg/kg Control Limit EP080: meta- & para-xylene mg/kg

207 Page : 15 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP080: BTEXN (QCLot: ) - continued ES Anonymous EP080: ortho-xylene mg/kg MS MSD Low High Value RPDs (%) EP080: Naphthalene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES SB37_1.5 EP071: C10 - C14 Fraction 640 mg/kg EP071: C15 - C28 Fraction 3140 mg/kg EP071: C29 - C36 Fraction 2860 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES SB37_1.5 EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 4800 mg/kg EP071: >C34 - C40 Fraction 2400 mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) ES SB37_1.5 EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) ES SB37_1.5 EP068: gamma-bhc mg/kg EP068: Heptachlor mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: 4.4`-DDT mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) ES SB37_1.5 EP068: Diazinon mg/kg EP068: Chlorpyrifos-methyl mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Bromophos-ethyl mg/kg EP068: Prothiofos mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) ES SB37_1.5 EP066: Total Polychlorinated biphenyls 1 mg/kg EG005T: Total Metals by ICP-AES (QCLot: ) ES Anonymous EG005T: Arsenic mg/kg EG005T: Cadmium mg/kg EG005T: Chromium mg/kg Control Limit EG005T: Copper mg/kg

208 Page : 16 of 16 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EG005T: Total Metals by ICP-AES (QCLot: ) - continued ES Anonymous EG005T: Lead mg/kg MS MSD Low High Value RPDs (%) EG005T: Nickel mg/kg EG005T: Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) ES Anonymous EG035T: Mercury mg/kg Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES Anonymous EP080: C6 - C9 Fraction 325 µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: C6 - C10 Fraction C6_C µg/l EP080: BTEXN (QCLot: ) ES Anonymous EP080: Benzene µg/l MS MSD Low High Value RPDs (%) EP080: Toluene µg/l EP080: Ethylbenzene µg/l EP080: meta- & para-xylene µg/l EP080: ortho-xylene µg/l Control Limit Control Limit EP080: Naphthalene µg/l

209 True Environmental INTERPRETIVE QUALITY CONTROL REPORT Work Order : ES Page : 1 of 9 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RYDE C-O-C number : & Date Samples Received : 27-FEB-2015 Sampler : KL Issue Date : 09-MAR-2015 Order number : No. of samples received : 26 Quote number : EN/008/14 No. of samples analysed : 10 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Interpretive Quality Control Report contains the following information: Analysis Holding Time Compliance Quality Control Parameter Frequency Compliance Brief Method Summaries Summary of Outliers Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

210 Page : 2 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Dates Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB21_1.5, SB30_ FEB MAR MAR-2015 Soil Glass Jar - Unpreserved (EA ) SB37_1.5, SB36A_0.2, 26-FEB MAR MAR-2015 SB34A_1.0, SB35A_0.5 EA200: AS Identification of Asbestos in bulk samples Snap Lock Bag - Separate bag received (EA200) SB21_1.5, SB30_ FEB AUG MAR AUG-2015 Snap Lock Bag - Separate bag received (EA200) SB37_1.5, SB36A_0.2, 26-FEB AUG MAR AUG-2015 SB34A_1.0, SB35A_0.5 EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) SB21_1.5, SB30_ MAR AUG MAR AUG-2015 Soil Glass Jar - Unpreserved (EG005T) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR AUG MAR AUG-2015 EG035T: Total Recoverable Mercury by FIMS Soil Glass Jar - Unpreserved (EG035T) SB21_1.5, SB30_ MAR MAR MAR MAR-2015 Soil Glass Jar - Unpreserved (EG035T) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR MAR-2015 EP066: Polychlorinated Biphenyls (PCB) Soil Glass Jar - Unpreserved (EP066) SB21_1.5, SB30_ MAR MAR MAR APR-2015 Soil Glass Jar - Unpreserved (EP066) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR APR-2015

211 Page : 3 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP068A: Organochlorine Pesticides (OC) Soil Glass Jar - Unpreserved (EP068) SB21_1.5, SB30_ MAR MAR MAR APR-2015 Soil Glass Jar - Unpreserved (EP068) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR APR-2015 EP068B: Organophosphorus Pesticides (OP) Soil Glass Jar - Unpreserved (EP068) SB21_1.5, SB30_ MAR MAR MAR APR-2015 Soil Glass Jar - Unpreserved (EP068) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR APR-2015 EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP071) SB21_1.5, SB30_ MAR MAR MAR APR-2015 Soil Glass Jar - Unpreserved (EP071) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR APR-2015 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) SB21_1.5, SB30_ MAR MAR MAR APR-2015 Soil Glass Jar - Unpreserved (EP075(SIM)) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR APR-2015 EP080: BTEXN Soil Glass Jar - Unpreserved (EP080) TRIP SPIKE, TSC 02-MAR MAR MAR MAR FEB-2015 û Soil Glass Jar - Unpreserved (EP080) SB21_1.5, SB30_ MAR MAR MAR MAR-2015 Soil Glass Jar - Unpreserved (EP080) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR MAR-2015 EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP080) TRIP SPIKE, TSC 02-MAR MAR MAR MAR FEB-2015 û Soil Glass Jar - Unpreserved (EP080) SB21_1.5, SB30_ MAR MAR MAR MAR-2015 Soil Glass Jar - Unpreserved (EP080) SB37_1.5, SB34A_1.0, SB36A_0.2, SB35A_ FEB FEB MAR MAR MAR MAR-2015 Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation

212 Page : 4 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP080/071: Total Petroleum Hydrocarbons Amber Glass Bottle - Unpreserved (EP071) RB_260215, TB_ MAR MAR MAR APR FEB-2015 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) RB_260215, TB_ MAR MAR MAR APR FEB-2015 EP080: BTEXN Amber VOC Vial - Sulfuric Acid (EP080) RB_260215, TB_ MAR MAR MAR MAR FEB-2015 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions Amber VOC Vial - Sulfuric Acid (EP080) RB_260215, TB_ MAR MAR MAR MAR FEB-2015

213 Page : 5 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Moisture Content PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method EA EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification Matrix: WATER Quality Control Sample Type Analytical Methods Method Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Count Rate (%) Quality Control Specification QC Regular Actual Expected Evaluation

214 Page : 6 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (GC/MS - SIM) TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (GC/MS - SIM) TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) TRH Volatiles/BTEX Method EP080 EP075(SIM) EP071 EP080 EP075(SIM) EP071 EP080 EP080 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

215 Page : 7 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL Asbestos Identification in Soils EA200 SOIL Total Metals by ICP-AES EG005T SOIL Total Mercury by FIMS EG035T SOIL Polychlorinated Biphenyls (PCB) EP066 SOIL Pesticides by GCMS EP068 SOIL TRH - Semivolatile Fraction EP071 SOIL PAH/Phenols (SIM) EP075(SIM) SOIL TRH Volatiles/BTEX EP080 SOIL TRH - Semivolatile Fraction EP071 WATER PAH/Phenols (GC/MS - SIM) EP075(SIM) WATER TRH Volatiles/BTEX EP080 WATER Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). AS Method for the qualitative identification of asbestos in bulk samples Analysis by Polarised Light Microscopy including dispersion staining In house: Referenced to APHA 21st ed., 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS 3550, APHA 21st ed., 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 504) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This technique is compliant with NEPM (2013) Schedule B(3) (Method 504,505) (USEPA SW A) Sample extracts are analysed by Capillary GC/FID and quantified against alkane standards over the range C10 - C40. (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve. USEPA SW A The sample extract is analysed by Capillary GC/FID and quantification is by comparison against an established 5 point calibration curve of n-alkane standards. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW B Water samples are directly purged prior to analysis by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. Alternatively, a sample is equilibrated in a headspace vial and a portion of the headspace determined by GCMS analysis. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) Preparation Methods Method Matrix Method Descriptions

216 Page : 8 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Preparation Methods Method Matrix Methanolic Extraction of Soils for Purge * ORG16 SOIL and Trap Tumbler Extraction of Solids ORG17 SOIL Separatory Funnel Extraction of Liquids ORG14 WATER Method Descriptions (USEPA SW A) 5g of solid is shaken with surrogate and 10mL methanol prior to analysis by Purge and Trap - GC/MS. In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis. USEPA SW B 100 ml to 1L of sample is transferred to a separatory funnel and serially extracted three times using 60mL DCM for each extract. The resultant extracts are combined, dehydrated and concentrated for analysis. This method is compliant with NEPM (2013) Schedule B(3). ALS default excludes sediment which may be resident in the container.

217 Page : 9 of 9 Work Order : ES Project : A AUSGRID CABLE ROUTE Summary of Outliers Outliers : Quality Control Samples The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This report displays QC Outliers (breaches) only. Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes For all matrices, no Method Blank value outliers occur. For all matrices, no Duplicate outliers occur. For all matrices, no Laboratory Control outliers occur. For all matrices, no Matrix Spike outliers occur. Regular Sample Surrogates For all regular sample matrices, no surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed. Matrix: SOIL Method Container / Sample ID(s) Date extracted Extraction / Preparation Due for extraction Days overdue Date analysed Analysis Due for analysis EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved TRIP SPIKE, TSC 05-MAR MAR EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions Soil Glass Jar - Unpreserved TRIP SPIKE, TSC 05-MAR MAR EP080: BTEXN Soil Glass Jar - Unpreserved TRIP SPIKE, TSC 05-MAR MAR Outliers : Frequency of Quality Control Samples The following report highlights breaches in the Frequency of Quality Control Samples. No Quality Control Sample Frequency Outliers exist. Days overdue

218 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : C-O-C number : Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : RHODES Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 06-MAR-2015 Issue Date : 09-MAR :56 Requested Due Date 16-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 16-MAR-2015 : Samples on hand Temperature : 3.4'C : No. of samples received : 1 : N/A No. of samples analysed : 1 Samples received in appropriately pretreated and preserved containers. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. This is a rebatch of ES Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

219 Issue Date Page Work Order : : : 09-MAR :56 : 2 of 2 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exists. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EP075 SIM PAH only SIM - PAH only SOIL - TCLP TCLP Leach ES FEB :00 SB8_0.6 Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables KELLIE LYNCH - *AU Certificate of Analysis - NATA kelynch@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) kelynch@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT kelynch@pb.com.au - A4 - AU Tax Invoice kelynch@pb.com.au - Chain of Custody (CoC) kelynch@pb.com.au - EDI Format - ENMRG kelynch@pb.com.au - EDI Format - ESDAT kelynch@pb.com.au MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

220 False True Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Date Samples Received : 06-MAR-2015 Sampler : Issue Date : 16-MAR-2015 Site : RHODES No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Surrogate Control Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Phalak Inthakesone Wisam Marassa Position Laboratory Manager - Organics Inorganics Coordinator Accreditation Category Sydney Organics Sydney Inorganics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

221 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero.

222 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB8_0.6 sampling date / time 18-FEB :00 Compound EN33: TCLP Leach Initial ph CAS Number LOR 0.1 Unit ph Unit ES After HCl ph 0.1 ph Unit 1.7 Extraction Fluid Number 1-1 Final ph 0.1 ph Unit 5.4

223 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: TCLP LEACHATE (Matrix: WATER) sample ID SB8_0.6 sampling date / time 13-MAR :00 Compound CAS Number LOR Unit ES EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene µg/l <1.0 Acenaphthylene µg/l <1.0 Acenaphthene µg/l <1.0 Fluorene µg/l <1.0 Phenanthrene µg/l <1.0 Anthracene µg/l <1.0 Fluoranthene µg/l <1.0 Pyrene µg/l <1.0 Benz(a)anthracene µg/l <1.0 Chrysene µg/l <1.0 Benzo(b+j)fluoranthene µg/l <1.0 Benzo(k)fluoranthene µg/l <1.0 Benzo(a)pyrene µg/l <0.5 Indeno(1.2.3.cd)pyrene µg/l <1.0 Dibenz(a.h)anthracene µg/l <1.0 Benzo(g.h.i)perylene µg/l <1.0 ^ Sum of polycyclic aromatic hydrocarbons 0.5 µg/l <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 µg/l <0.5 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 58.4 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 22.7 Anthracene-d % Terphenyl-d % 89.4

224 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: TCLP LEACHATE Recovery Limits (%) Compound CAS Number Low High EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d

225 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RHODES C-O-C number : Date Samples Received : 06-MAR-2015 Sampler : Issue Date : 16-MAR-2015 Order number : No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Phalak Inthakesone Laboratory Manager - Organics Sydney Organics Wisam Marassa Inorganics Coordinator Sydney Inorganics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

226 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

227 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%. No Laboratory Duplicate (DUP) Results are required to be reported.

228 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Spike (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthylene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthene µg/l <1.0 5 µg/l EP075(SIM): Fluorene µg/l <1.0 5 µg/l EP075(SIM): Phenanthrene µg/l <1.0 5 µg/l EP075(SIM): Anthracene µg/l <1.0 5 µg/l EP075(SIM): Fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Pyrene µg/l <1.0 5 µg/l EP075(SIM): Benz(a)anthracene µg/l <1.0 5 µg/l EP075(SIM): Chrysene µg/l <1.0 5 µg/l EP075(SIM): Benzo(b+j)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(k)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l EP075(SIM): Indeno(1.2.3.cd)pyrene µg/l <1.0 5 µg/l EP075(SIM): Dibenz(a.h)anthracene µg/l <1.0 5 µg/l EP075(SIM): Benzo(g.h.i)perylene µg/l <1.0 5 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. No Matrix Spike (MS) Results are required to be reported. Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. No Matrix Spike (MS) or Matrix Spike Duplicate (MSD) Results are required to be reported.

229 True Environmental INTERPRETIVE QUALITY CONTROL REPORT Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RHODES C-O-C number : Date Samples Received : 06-MAR-2015 Sampler : Issue Date : 16-MAR-2015 Order number : No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Interpretive Quality Control Report contains the following information: Analysis Holding Time Compliance Quality Control Parameter Frequency Compliance Brief Method Summaries Summary of Outliers Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

230 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Dates Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EN33: TCLP Leach Non-Volatile Leach: 14 day HT(e.g. SV organics) (EN33a) SB8_0.6 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) SB8_ FEB MAR MAR MAR-2015 û 13-MAR MAR MAR MAR APR-2015

231 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Control Samples (LCS) PAH/Phenols (GC/MS - SIM) Method Blanks (MB) PAH/Phenols (GC/MS - SIM) Method EP075(SIM) EP075(SIM) Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

232 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix PAH/Phenols (GC/MS - SIM) EP075(SIM) SOIL Method Descriptions USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) Preparation Methods Method Matrix TCLP for Non & Semivolatile Analytes EN33a SOIL Separatory Funnel Extraction of Liquids ORG14 SOIL Method Descriptions In house QWI-EN/33 referenced to USEPA SW : The TCLP procedure is designed to determine the mobility of both organic and inorganic analytes present in wastes. The standard TCLP leach is for non-volatile and Semivolatile test parameters. USEPA SW B 100 ml to 1L of sample is transferred to a separatory funnel and serially extracted three times using 60mL DCM for each extract. The resultant extracts are combined, dehydrated and concentrated for analysis. This method is compliant with NEPM (2013) Schedule B(3). ALS default excludes sediment which may be resident in the container.

233 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Summary of Outliers Outliers : Quality Control Samples The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This report displays QC Outliers (breaches) only. Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes For all matrices, no Method Blank value outliers occur. For all matrices, no Duplicate outliers occur. For all matrices, no Laboratory Control outliers occur. For all matrices, no Matrix Spike outliers occur. Regular Sample Surrogates For all regular sample matrices, no surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed. Matrix: SOIL Method Container / Sample ID(s) EN33: TCLP Leach Non-Volatile Leach: 14 day HT(e.g. SV organics) SB8_0.6 Date extracted Extraction / Preparation Due for extraction Days overdue Date analysed Analysis Due for analysis Days overdue 13-MAR MAR Outliers : Frequency of Quality Control Samples The following report highlights breaches in the Frequency of Quality Control Samples. No Quality Control Sample Frequency Outliers exist.

234 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : C-O-C number : Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : MEADOWBANK Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 12-MAR-2015 Issue Date : 12-MAR :24 Requested Due Date 19-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 19-MAR-2015 : Samples on hand Temperature : : No. of samples received : 3 : N/A No. of samples analysed : 3 Samples received in appropriately pretreated and preserved containers. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. This is a rebatch of ES Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

235 Issue Date Page Work Order : : : 12-MAR :24 : 2 of 2 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exists. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EG005C Leachable Metals by ICPAES SOIL - EP075 SIM PAH only SIM - PAH only ES FEB :00 SB14_0.25 ES FEB :00 SB24_0.16 ES FEB :00 SB20_0.2 SOIL - TCLP TCLP Leach Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

236 False True Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 19-MAR-2015 Site : MEADOWBANK No. of samples received : 3 Quote number : EN/008/14 No. of samples analysed : 3 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Surrogate Control Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Edwandy Fadjar Shobhna Chandra Position Organic Coordinator Metals Coordinator Accreditation Category Sydney Organics Sydney Inorganics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

237 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero.

238 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB14_0.25 SB24_0.16 SB20_0.2 sampling date / time 20-FEB :00 23-FEB :00 24-FEB :00 Compound EN33: TCLP Leach Initial ph CAS Number LOR 0.1 Unit ph Unit ES ES ES After HCl ph 0.1 ph Unit Extraction Fluid Number Final ph 0.1 ph Unit

239 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: TCLP LEACHATE (Matrix: WATER) sample ID SB14_0.25 SB24_0.16 SB20_0.2 sampling date / time 14-MAR :00 14-MAR :00 14-MAR :00 Compound EG005C: Leachable Metals by ICPAES Nickel CAS Number LOR 0.1 Unit mg/l ES ES ES <0.1 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Benzo(a)pyrene µg/l <0.5 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 58.3 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 57.8 Anthracene-d % Terphenyl-d % 64.3

240 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: TCLP LEACHATE Recovery Limits (%) Compound CAS Number Low High EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d

241 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : MEADOWBANK C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 19-MAR-2015 Order number : No. of samples received : 3 Quote number : EN/008/14 No. of samples analysed : 3 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Edwandy Fadjar Organic Coordinator Sydney Organics Shobhna Chandra Metals Coordinator Sydney Inorganics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

242 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. APHA, AS and NEPM. In house Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

243 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%. Sub-Matrix: WATER Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EG005C: Leachable Metals by ICPAES (QC Lot: ) ES ES Anonymous Anonymous EG005C: Nickel mg/l <0.1 < No Limit EG005C: Nickel mg/l <0.1 < No Limit

244 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Spike (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005C: Leachable Metals by ICPAES (QCLot: ) EG005C: Nickel mg/l < mg/l EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number EG005C: Leachable Metals by ICPAES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005C: Nickel mg/l Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration MS Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EG005C: Leachable Metals by ICPAES (QCLot: ) ES Anonymous EG005C: Nickel mg/l MS MSD Low High Low Value RPDs (%) High Control Limit

245 True Environmental INTERPRETIVE QUALITY CONTROL REPORT Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : MEADOWBANK C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 19-MAR-2015 Order number : No. of samples received : 3 Quote number : EN/008/14 No. of samples analysed : 3 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Interpretive Quality Control Report contains the following information: Analysis Holding Time Compliance Quality Control Parameter Frequency Compliance Brief Method Summaries Summary of Outliers Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

246 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Dates Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG005C: Leachable Metals by ICPAES Clear Plastic Bottle - Nitric Acid; Unfiltered (EG005C) SB14_0.25, SB20_ MAR SEP MAR SEP-2015 EN33: TCLP Leach Non-Volatile Leach: 14 day HT(e.g. SV organics) (EN33a) SB24_0.16 Non-Volatile Leach: 180 day HT (e.g. metals ex.hg) (EN33a) SB14_0.25 Non-Volatile Leach: 180 day HT (e.g. metals ex.hg) (EN33a) SB20_0.2 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) SB24_ MAR FEB MAR MAR MAR-2015 û 20-FEB AUG MAR AUG FEB AUG MAR AUG MAR MAR MAR MAR APR-2015

247 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Leachable Metals by ICPAES Laboratory Control Samples (LCS) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Method Blanks (MB) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Matrix Spikes (MS) Leachable Metals by ICPAES Method EG005C EG005C EP075(SIM) EG005C EP075(SIM) EG005C Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

248 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Leachable Metals by ICPAES EG005C SOIL PAH/Phenols (GC/MS - SIM) EP075(SIM) SOIL Method Descriptions In house: referenced to APHA 21st ed., 3120; USEPA SW : The ICPAES technique ionises leachate sample atoms emitting a characteristic spectrum. This spectrum is then compared against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) Preparation Methods Digestion for Total Recoverable Metals in TCLP Leachate Method EN25C Matrix SOIL TCLP for Non & Semivolatile Analytes EN33a SOIL Separatory Funnel Extraction of Liquids ORG14 SOIL Method Descriptions USEPA SW Method 3005 is a Nitric/Hydrochloric acid digestion procedure used to prepare surface and ground water samples for analysis by ICPAES or ICPMS. This method is compliant with NEPM (2013) Schedule B(3) In house QWI-EN/33 referenced to USEPA SW : The TCLP procedure is designed to determine the mobility of both organic and inorganic analytes present in wastes. The standard TCLP leach is for non-volatile and Semivolatile test parameters. USEPA SW B 100 ml to 1L of sample is transferred to a separatory funnel and serially extracted three times using 60mL DCM for each extract. The resultant extracts are combined, dehydrated and concentrated for analysis. This method is compliant with NEPM (2013) Schedule B(3). ALS default excludes sediment which may be resident in the container.

249 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Summary of Outliers Outliers : Quality Control Samples The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This report displays QC Outliers (breaches) only. Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes For all matrices, no Method Blank value outliers occur. For all matrices, no Duplicate outliers occur. For all matrices, no Laboratory Control outliers occur. For all matrices, no Matrix Spike outliers occur. Regular Sample Surrogates For all regular sample matrices, no surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed. Matrix: SOIL Method Container / Sample ID(s) EN33: TCLP Leach Non-Volatile Leach: 14 day HT(e.g. SV organics) SB24_0.16 Date extracted Extraction / Preparation Due for extraction Days overdue Date analysed Analysis Due for analysis Days overdue 14-MAR MAR Outliers : Frequency of Quality Control Samples The following report highlights breaches in the Frequency of Quality Control Samples. No Quality Control Sample Frequency Outliers exist.

250 Environmental Division SAMPLE RECEIPT NOTIFICATION (SRN) Comprehensive Report Work Order : ES : PARSONS BRINCKERHOFF AUST Laboratory : Environmental Division Sydney Contact P/L : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : C-O-C number : Quote number : ES2014PARBRINSW0202 (EN/008/14) Site : RYDE Sampler : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Dates Date Samples Received : 12-MAR-2015 Issue Date : 12-MAR :19 Requested Due Date 19-MAR-2015 Scheduled Reporting Date : Delivery Details Mode of Delivery No. of coolers/boxes Security Seal General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables : 19-MAR-2015 : Samples on hand Temperature : : No. of samples received : 1 : N/A No. of samples analysed : 1 Samples received in appropriately pretreated and preserved containers. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. This is a rebatch of ES Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

251 Issue Date Page Work Order : : : 12-MAR :19 : 2 of 2 ES PARSONS BRINCKERHOFF AUST P/L Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exists. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. If no sampling time is provided, the sampling time will default to 15:00 on the date of sampling. If no sampling date is provided, the sampling date will be assumed by the laboratory for processing purposes and will be shown bracketed without a time component. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EA Moisture Content SOIL - EP075 SIM PAH only SIM - PAH only ES FEB :00 SB15A_0.5 Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables KELLIE LYNCH - *AU Certificate of Analysis - NATA kelynch@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) kelynch@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT kelynch@pb.com.au - A4 - AU Tax Invoice kelynch@pb.com.au - Chain of Custody (CoC) kelynch@pb.com.au - EDI Format - ENMRG kelynch@pb.com.au - EDI Format - ESDAT kelynch@pb.com.au MS IMOGEN POWELL - *AU Certificate of Analysis - NATA ( COA ) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) ( QCI ) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA ( QC ) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT ( SRN ) ipowell@pb.com.au - A4 - AU Tax Invoice ( INV ) ipowell@pb.com.au - Chain of Custody (CoC) ( COC ) ipowell@pb.com.au - EDI Format - ENMRG ( ENMRG ) ipowell@pb.com.au - EDI Format - ESDAT ( ESDAT ) ipowell@pb.com.au THE ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice ( INV ) apinvoices@pb.com.au

252 False True Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 18-MAR-2015 Site : RYDE No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Certificate of Analysis contains the following information: General Comments Analytical Results Surrogate Control Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Pabi Subba Pabi Subba Position Senior Organic Chemist Senior Organic Chemist Accreditation Category Sydney Inorganics Sydney Organics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

253 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs.

254 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) sample ID SB15A_0.5 sampling date / time 26-FEB :00 Compound EA055: Moisture Content Moisture Content 103 C) CAS Number LOR 1.0 Unit % ES EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg 9.4 Acenaphthylene mg/kg 1.2 Acenaphthene mg/kg 8.3 Fluorene mg/kg 12.1 Phenanthrene mg/kg 56.1 Anthracene mg/kg 19.4 Fluoranthene mg/kg 42.9 Pyrene mg/kg 35.0 Benz(a)anthracene mg/kg 14.8 Chrysene mg/kg 12.6 Benzo(b+j)fluoranthene mg/kg 13.2 Benzo(k)fluoranthene mg/kg 5.4 Benzo(a)pyrene mg/kg 12.5 Indeno(1.2.3.cd)pyrene mg/kg 5.7 Dibenz(a.h)anthracene mg/kg 1.2 Benzo(g.h.i)perylene mg/kg 6.8 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg 257 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg 17.8 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg 17.8 ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg 17.8 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 94.2 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 103 Anthracene-d % Terphenyl-d % 97.6

255 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Surrogate Control Limits Sub-Matrix: SOIL Recovery Limits (%) Compound CAS Number Low High EP075(SIM)S: Phenolic Compound Surrogates Phenol-d Chlorophenol-D Tribromophenol EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl Anthracene-d Terphenyl-d

256 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RYDE C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 18-MAR-2015 Order number : No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Pabi Subba Senior Organic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

257 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

258 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: ) ES ES Anonymous Anonymous EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) EW Anonymous EA : Moisture Content 103 C) 1.0 % No Limit EA : Moisture Content 103 C) 1.0 % % - 50% EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg No Limit EP075(SIM): Pyrene mg/kg No Limit EP075(SIM): Benz(a)anthracene mg/kg No Limit EP075(SIM): Chrysene mg/kg No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg No Limit EP075(SIM): Benzo(a)pyrene mg/kg No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg % - 50% EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg No Limit

259 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Spike (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Naphthalene mg/kg <0.5 4 mg/kg EP075(SIM): Acenaphthylene mg/kg <0.5 4 mg/kg EP075(SIM): Acenaphthene mg/kg <0.5 4 mg/kg EP075(SIM): Fluorene mg/kg <0.5 4 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 4 mg/kg EP075(SIM): Anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Chrysene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 4 mg/kg EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 4 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 4 mg/kg Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) EW Anonymous EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg MS Low High

260 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number Spike Concentration Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report Spike Recovery (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EW Anonymous EP075(SIM): Acenaphthene mg/kg MS MSD Low High Value RPDs (%) Control Limit EP075(SIM): Pyrene mg/kg

261 True Environmental INTERPRETIVE QUALITY CONTROL REPORT Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Loren Schiavon Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au loren.schiavon@alsglobal.com Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Site : RYDE C-O-C number : Date Samples Received : 12-MAR-2015 Sampler : Issue Date : 18-MAR-2015 Order number : No. of samples received : 1 Quote number : EN/008/14 No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release. This Interpretive Quality Control Report contains the following information: Analysis Holding Time Compliance Quality Control Parameter Frequency Compliance Brief Method Summaries Summary of Outliers Address Woodpark Road Smithfield NSW Australia 2164 PHONE Facsimile Environmental Division Sydney ABN Part of the ALS Group An ALS Limited Company

262 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Dates Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB15A_0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) SB15A_ FEB MAR MAR-2015 û 26-FEB MAR MAR MAR APR-2015

263 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Moisture Content PAH/Phenols (SIM) Laboratory Control Samples (LCS) PAH/Phenols (SIM) Method Blanks (MB) PAH/Phenols (SIM) Matrix Spikes (MS) PAH/Phenols (SIM) Method EA EP075(SIM) EP075(SIM) EP075(SIM) EP075(SIM) Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

264 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL PAH/Phenols (SIM) EP075(SIM) SOIL Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) Preparation Methods Method Matrix Tumbler Extraction of Solids ORG17 SOIL Method Descriptions In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis.

265 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Summary of Outliers Outliers : Quality Control Samples The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This report displays QC Outliers (breaches) only. Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes For all matrices, no Method Blank value outliers occur. For all matrices, no Duplicate outliers occur. For all matrices, no Laboratory Control outliers occur. For all matrices, no Matrix Spike outliers occur. Regular Sample Surrogates For all regular sample matrices, no surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed. Matrix: SOIL Method Container / Sample ID(s) EA055: Moisture Content Soil Glass Jar - Unpreserved SB15A_0.5 Date extracted Extraction / Preparation Due for extraction Days overdue Date analysed Analysis Due for analysis Days overdue 17-MAR MAR Outliers : Frequency of Quality Control Samples The following report highlights breaches in the Frequency of Quality Control Samples. No Quality Control Sample Frequency Outliers exist.

266 Work Order SAMPLE RECEIPT NOTIFICATION (SRN) : ES Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 3 Order number : Quote number : ES2014PARBRINSW0202 (EN/008/14) C-O-C number : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Site : RYDE Sampler : Dates Date Samples Received : 11-May-2015 Issue Date : 12-May-2015 Requested Due 18-May-2015 Scheduled Reporting Date : Date Delivery Details : 18-May-2015 Mode of Delivery : Pickup Security Seal : Intact. No. of coolers/boxes : 1 Temperature : 9.3'C - Ice Bricks present Receipt Detail : No. of samples received / analysed : 26 / 7 General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Sample(s) requiring volatile organic compound analysis received in airtight containers (ZHE). Asbestos analysis will be conducted by ALS Newcastle. Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. R I G H T S O L U T I O N S R I G H T P A R T N E R

267 Issue Date : 12-May-2015 Page : 2 of 3 Work Order : ES Amendment 0 Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. Method sample ID Asbestos Identification in Soils : EA200 SB26_1.5 Sample Container Received - Snap Lock Bag - Subsampled by ALS Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. Matrix: SOIL Laboratory sample ID sampling date / time sample ID (On Hold) SOIL No analysis requested SOIL - EA002 ph (1:5) SOIL - EA Moisture Content Preferred Sample Container for Analysis ES [ 11-May-2015 ] SB28_0.5 ES [ 11-May-2015 ] SB32_0.2 ES [ 11-May-2015 ] SB27_1.0 ES [ 11-May-2015 ] SB25_1.5 ES [ 11-May-2015 ] SB31_0.5 ES [ 11-May-2015 ] SB26_1.5 ES [ 11-May-2015 ] SB29_1.0 ES [ 11-May-2015 ] SB28_0.2 ES [ 11-May-2015 ] SB28_1.5 ES [ 11-May-2015 ] SB32_0.5 ES [ 11-May-2015 ] DUP05 ES [ 11-May-2015 ] TRIP05 ES [ 11-May-2015 ] SB32_1.5 ES [ 11-May-2015 ] SB27_0.2 ES [ 11-May-2015 ] SB27_0.5 ES [ 11-May-2015 ] SB27_1.5 ES [ 11-May-2015 ] SB25_0.2 ES [ 11-May-2015 ] SB25_0.5 ES [ 11-May-2015 ] SB31_0.2 ES [ 11-May-2015 ] SB31_1.0 ES [ 11-May-2015 ] SB31_1.5 ES [ 11-May-2015 ] SB26_0.2 ES [ 11-May-2015 ] SB26_0.5 ES [ 11-May-2015 ] SB29_0.2 ES [ 11-May-2015 ] SB29_0.5 ES [ 11-May-2015 ] SB29_1.5 - Snap Lock Bag - ACM/Asbestos Grab Sample bag SOIL - EA200 Asbestos Identification in Soils - SOIL - ED008 Def Exchangeable Cations with pre-treatment Default SOIL - EG005T (solids) Total Metals by ICP-AES SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis.

268 Issue Date : 12-May-2015 Page : 3 of 3 Work Order : ES Amendment 0 Requested Deliverables ACCOUNTS PAYABLE - A4 - AU Tax Invoice (INV) accountspayable@pb.com.au ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice (INV) apinvoices@pb.com.au IMOGEN POWELL - *AU Certificate of Analysis - NATA (COA) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) (QCI) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA (QC) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT (SRN) ipowell@pb.com.au - A4 - AU Tax Invoice (INV) ipowell@pb.com.au - Chain of Custody (CoC) (COC) ipowell@pb.com.au - EDI Format - ENMRG (ENMRG) ipowell@pb.com.au - EDI Format - ESDAT (ESDAT) ipowell@pb.com.au

269 CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 12 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : Date Samples Received : 11-May :05 C-O-C number : Date Analysis Commenced : 12-May-2015 Sampler : Issue Date : 21-May :39 Site : RYDE No. of samples received : 26 Quote number : No. of samples analysed : 7 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results Descriptive Results R I G H T S O L U T I O N S R I G H T P A R T N E R

270 Page : 2 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Ankit Joshi Inorganic Chemist Sydney Inorganics Dian Dao Sydney Inorganics Edwandy Fadjar Organic Coordinator Sydney Organics Pabi Subba Senior Organic Chemist Sydney Inorganics Shaun Spooner Asbestos Identifier Newcastle - Asbestos Shobhna Chandra Metals Coordinator Sydney Inorganics Sydney Organics

271 Page : 3 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests. EA200: As only one sample container was submitted for multiple tests, sub sampling was conducted on sample ES prior to Asbestos analysis. As this has the potential to understate detection, results should be scrutinised accordingly and NATA accreditation does not apply to analysis on this sample. EA200 'Am' Amosite (brown asbestos) EA200 'Cr' Crocidolite (blue asbestos) EA200 'Trace' - Asbestos fibres ("Free Fibres") detected by trace analysis per AS4964. The result can be interpreted that the sample contains detectable 'respirable' asbestos fibres EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining. EA200 Legend EA200 'Ch' Chrysotile (white asbestos) EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended. EA200: Negative results for vinyl tiles should be confirmed by an independent analytical technique. Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs. EA200: For samples larger than 30g, the <2mm fraction may be sub-sampled prior to trace analysis as outlined in ISO23909:2008(E) Sect ED007 and ED008: When Exchangeable Al is reported from these methods, it should be noted that Rayment & Lyons (2011) suggests Exchange Acidity by 1M KCl (Method 15G1) is a more suitable method for the determination of exchange acidity (H+ + Al3+).

272 Page : 4 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB28_0.5 [11-May-2015] ES SB32_0.2 [11-May-2015] ES SB27_1.0 [11-May-2015] ES SB25_1.5 [11-May-2015] ES SB31_0.5 [11-May-2015] ES Result Result Result Result Result EA055: Moisture Content ^ Moisture Content 103 C) 1 % EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg No No No No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- G.MORGAN G.MORGAN G.MORGAN S.SPOONER S.SPOONER ED008: Exchangeable Cations ^ Exchangeable Calcium ^ ^ ^ ^ Exchangeable Magnesium Exchangeable Potassium Exchangeable Sodium Cation Exchange Capacity meq/100g meq/100g meq/100g meq/100g meq/100g EG005T: Total Metals by ICP-AES Iron mg/kg Arsenic mg/kg 13 <5 11 <5 8 Cadmium mg/kg <1 <1 <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg 38 < Nickel mg/kg <2 7 Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 <0.1 EP004: Organic Matter Total Organic Carbon EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls % mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 <0.05 <0.05

273 Page : 5 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB28_0.5 [11-May-2015] ES SB32_0.2 [11-May-2015] ES SB27_1.0 [11-May-2015] ES SB25_1.5 [11-May-2015] ES SB31_0.5 [11-May-2015] ES Result Result Result Result Result EP068A: Organochlorine Pesticides (OC) - Continued Aldrin mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Dieldrin mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDE mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Endrin mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 beta-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDD mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 <0.05 <0.05 < `-DDT mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05

274 Page : 6 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB28_0.5 [11-May-2015] ES SB32_0.2 [11-May-2015] ES SB27_1.0 [11-May-2015] ES SB25_1.5 [11-May-2015] ES SB31_0.5 [11-May-2015] ES Result Result Result Result Result EP068B: Organophosphorus Pesticides (OP) - Continued Prothiofos mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 <0.05 <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Anthracene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Pyrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Chrysene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 <10 <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 <100 <100 <100 C29 - C36 Fraction 100 mg/kg <100 <100 <100 <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 <50 <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 <10 <10 <10 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 10 mg/kg <10 <10 <10 <10 <10 (F1)

275 Page : 7 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB28_0.5 [11-May-2015] ES SB32_0.2 [11-May-2015] ES SB27_1.0 [11-May-2015] ES SB25_1.5 [11-May-2015] ES SB31_0.5 [11-May-2015] ES Result Result Result Result Result EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions - Continued >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 <100 <100 <100 >C34 - C40 Fraction 100 mg/kg <100 <100 <100 <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 <50 <50 <50 ^ >C10 - C16 Fraction minus Naphthalene 50 mg/kg <50 <50 <50 <50 <50 (F2) EP080: BTEXN Benzene mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 Toluene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ortho-xylene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 <0.5 <0.5 <0.5 Naphthalene mg/kg <1 <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

276 Page : 8 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB26_1.5 [11-May-2015] ES SB29_1.0 [11-May-2015] ES Result Result Result Result Result EA055: Moisture Content ^ Moisture Content 103 C) 1 % EA200: AS Identification of Asbestos in bulk samples Asbestos Detected g/kg No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- S.SPOONER S.SPOONER ED008: Exchangeable Cations ^ Exchangeable Calcium ^ ^ ^ ^ Exchangeable Magnesium Exchangeable Potassium Exchangeable Sodium Cation Exchange Capacity meq/100g meq/100g meq/100g meq/100g meq/100g 2.9 <0.2 <0.2 < EG005T: Total Metals by ICP-AES Iron mg/kg Arsenic mg/kg 8 11 Cadmium mg/kg <1 <1 Chromium mg/kg 40 8 Copper mg/kg Lead mg/kg Nickel mg/kg 18 4 Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg 0.1 <0.1 EP004: Organic Matter Total Organic Carbon EP066: Polychlorinated Biphenyls (PCB) Total Polychlorinated biphenyls % mg/kg 0.5 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05

277 Page : 9 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB26_1.5 [11-May-2015] ES SB29_1.0 [11-May-2015] ES Result Result Result Result Result EP068A: Organochlorine Pesticides (OC) - Continued Aldrin mg/kg <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 Dieldrin mg/kg <0.05 < `-DDE mg/kg <0.05 <0.05 Endrin mg/kg <0.05 <0.05 beta-endosulfan mg/kg <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 < `-DDD mg/kg <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 < `-DDT mg/kg <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 Malathion mg/kg <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 Parathion mg/kg <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05

278 Page : 10 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB26_1.5 [11-May-2015] ES SB29_1.0 [11-May-2015] ES Result Result Result Result Result EP068B: Organophosphorus Pesticides (OP) - Continued Prothiofos mg/kg <0.05 <0.05 Ethion mg/kg <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 Fluorene mg/kg <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 Anthracene mg/kg <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5 Pyrene mg/kg <0.5 <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 Chrysene mg/kg <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 C29 - C36 Fraction 100 mg/kg <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 10 mg/kg <10 <10 (F1)

279 Page : 11 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB26_1.5 [11-May-2015] ES SB29_1.0 [11-May-2015] ES Result Result Result Result Result EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions - Continued >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 >C34 - C40 Fraction 100 mg/kg <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 ^ >C10 - C16 Fraction minus Naphthalene 50 mg/kg <50 <50 (F2) EP080: BTEXN Benzene mg/kg <0.2 <0.2 Toluene mg/kg <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 ortho-xylene mg/kg <0.5 <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 Naphthalene mg/kg <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

280 Page : 12 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Descriptive Results Sub-Matrix: SOIL Method: Compound sample ID - sampling date / time EA200: AS Identification of Asbestos in bulk samples EA200: Description SB28_0.5 - [11-May-2015] EA200: Description SB32_0.2 - [11-May-2015] EA200: Description SB27_1.0 - [11-May-2015] EA200: Description SB25_1.5 - [11-May-2015] EA200: Description SB31_0.5 - [11-May-2015] EA200: Description SB26_1.5 - [11-May-2015] EA200: Description SB29_1.0 - [11-May-2015] Analytical Results Mid brown clay soil. Mid brown clay soil. Pale brown clay soil. Pale brown clay soil with red rocks. Mid grey - brown clay soil with grey rocks. Mid brown clay soil with grey and red rocks. Pale grey - brown clay soil with grey rocks.

281 False False QUALITY CONTROL REPORT Work Order : ES Page : 1 of 12 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Sampler : Site : RYDE Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 11-May-2015 : 12-May-2015 Issue Date : 21-May-2015 No. of samples received : 26 No. of samples analysed : 7 R I G H T S O L U T I O N S R I G H T P A R T N E R

282 Page : 2 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Ankit Joshi Inorganic Chemist Sydney Inorganics Dian Dao Sydney Inorganics Edwandy Fadjar Organic Coordinator Sydney Organics Pabi Subba Senior Organic Chemist Sydney Inorganics Shaun Spooner Asbestos Identifier Newcastle - Asbestos Shobhna Chandra Metals Coordinator Sydney Inorganics Sydney Organics

283 Page : 3 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: 98585) ES ES Anonymous Anonymous EA055: Moisture Content (QC Lot: 98586) ES ES SB25_1.5 Anonymous ED008: Exchangeable Cations (QC Lot: 97662) ES SB26_1.5 EG005T: Total Metals by ICP-AES (QC Lot: 98794) ES ES SB25_1.5 Anonymous EG035T: Total Recoverable Mercury by FIMS (QC Lot: 98795) ES ES SB26_1.5 Anonymous EP004: Organic Matter (QC Lot: 98885) ES Anonymous EP066: Polychlorinated Biphenyls (PCB) (QC Lot: 97441) ES ES SB28_0.5 SB29_1.0 EA : Moisture Content 103 C) 1 % <1.0 < No Limit EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % % - 50% ED008: Cation Exchange Capacity 0.1 meq/100g % - 20% ED008: Exchangeable Calcium 0.1 meq/100g % - 20% ED008: Exchangeable Magnesium 0.1 meq/100g <0.2 < % - 20% ED008: Exchangeable Potassium 0.1 meq/100g <0.2 < % - 20% ED008: Exchangeable Sodium 0.1 meq/100g <0.2 < % - 20% EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg <2 < No Limit EG005T: Arsenic mg/kg <5 < No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG005T: Iron mg/kg % - 20% EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg % - 20% EG005T: Zinc mg/kg % - 20% EG035T: Mercury mg/kg No Limit EG035T: Mercury mg/kg No Limit EP004: Total Organic Carbon 0.5 % <0.5 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit

284 Page : 4 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: 97440) ES ES SB28_0.5 SB29_1.0 EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit

285 Page : 5 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: 97440) - continued ES SB29_1.0 EP068B: Organophosphorus Pesticides (OP) (QC Lot: 97440) ES ES SB28_0.5 SB29_1.0 EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit

286 Page : 6 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068B: Organophosphorus Pesticides (OP) (QC Lot: 97440) - continued ES SB29_1.0 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: 97439) ES ES SB28_0.5 SB29_1.0 EP068: Parathion-methyl mg/kg <0.2 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit

287 Page : 7 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: 97439) - continued ES SB29_1.0 EP080/071: Total Petroleum Hydrocarbons (QC Lot: 97437) ES ES SB28_0.5 Anonymous EP080/071: Total Petroleum Hydrocarbons (QC Lot: 97438) ES ES SB28_0.5 SB29_1.0 EP075(SIM): Sum of polycyclic aromatic hydrocarbons EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: 97437) ES ES SB28_0.5 Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: 97438) ES ES SB28_0.5 SB29_1.0 EP080: BTEXN (QC Lot: 97437) ES ES SB28_0.5 Anonymous 0.5 mg/kg <0.5 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 < No Limit

288 Page : 8 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High ED008: Exchangeable Cations (QCLot: 97662) ED008: Cation Exchange Capacity 0.1 meq/100g <0.1 ED008: Exchangeable Calcium 0.1 meq/100g <0.1 1 meq/100g ED008: Exchangeable Magnesium 0.1 meq/100g < meq/100g ED008: Exchangeable Potassium 0.1 meq/100g < meq/100g ED008: Exchangeable Sodium 0.1 meq/100g < meq/100g EG005T: Total Metals by ICP-AES (QCLot: 98794) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg <5 32 mg/kg EG005T: Iron mg/kg < mg/kg EG005T: Lead mg/kg <5 40 mg/kg EG005T: Nickel mg/kg <2 55 mg/kg EG005T: Zinc mg/kg < mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: 98795) EG035T: Mercury mg/kg < mg/kg EP004: Organic Matter (QCLot: 98885) EP004: Total Organic Carbon 0.5 % < % EP066: Polychlorinated Biphenyls (PCB) (QCLot: 97441) EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: 97440) EP068: 4.4`-DDD mg/kg < mg/kg EP068: 4.4`-DDE mg/kg < mg/kg EP068: 4.4`-DDT mg/kg < mg/kg EP068: Aldrin mg/kg < mg/kg EP068: alpha-bhc mg/kg < mg/kg EP068: alpha-endosulfan mg/kg < mg/kg EP068: beta-bhc mg/kg < mg/kg EP068: beta-endosulfan mg/kg < mg/kg EP068: cis-chlordane mg/kg < mg/kg EP068: delta-bhc mg/kg < mg/kg EP068: Dieldrin mg/kg < mg/kg EP068: Endosulfan sulfate mg/kg < mg/kg EP068: Endrin mg/kg < mg/kg

289 Page : 9 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068A: Organochlorine Pesticides (OC) (QCLot: 97440) - continued EP068: Endrin aldehyde mg/kg < mg/kg EP068: Endrin ketone mg/kg < mg/kg EP068: gamma-bhc mg/kg < mg/kg EP068: Heptachlor mg/kg < mg/kg EP068: Heptachlor epoxide mg/kg < mg/kg EP068: Hexachlorobenzene (HCB) mg/kg < mg/kg EP068: Methoxychlor mg/kg < mg/kg EP068: trans-chlordane mg/kg < mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: 97440) EP068: Azinphos Methyl mg/kg < mg/kg EP068: Bromophos-ethyl mg/kg < mg/kg EP068: Carbophenothion mg/kg < mg/kg EP068: Chlorfenvinphos mg/kg < mg/kg EP068: Chlorpyrifos mg/kg < mg/kg EP068: Chlorpyrifos-methyl mg/kg < mg/kg EP068: Demeton-S-methyl mg/kg < mg/kg EP068: Diazinon mg/kg < mg/kg EP068: Dichlorvos mg/kg < mg/kg EP068: Dimethoate mg/kg < mg/kg EP068: Ethion mg/kg < mg/kg EP068: Fenamiphos mg/kg < mg/kg EP068: Fenthion mg/kg < mg/kg EP068: Malathion mg/kg < mg/kg EP068: Monocrotophos mg/kg < mg/kg EP068: Parathion mg/kg < mg/kg EP068: Parathion-methyl mg/kg < mg/kg EP068: Pirimphos-ethyl mg/kg < mg/kg EP068: Prothiofos mg/kg < mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: 97439) EP075(SIM): Acenaphthene mg/kg <0.5 6 mg/kg EP075(SIM): Acenaphthylene mg/kg <0.5 6 mg/kg EP075(SIM): Anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Chrysene mg/kg <0.5 6 mg/kg

290 Page : 10 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: 97439) - continued EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Fluorene mg/kg <0.5 6 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Naphthalene mg/kg <0.5 6 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 6 mg/kg EP075(SIM): Pyrene mg/kg <0.5 6 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 97437) EP080: C6 - C9 Fraction 10 mg/kg <10 26 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 97438) EP071: C10 - C14 Fraction 50 mg/kg < mg/kg EP071: C15 - C28 Fraction 100 mg/kg < mg/kg EP071: C29 - C36 Fraction 100 mg/kg < mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 97437) EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 31 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 97438) EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg < mg/kg EP071: >C16 - C34 Fraction 100 mg/kg < mg/kg EP071: >C34 - C40 Fraction 100 mg/kg < mg/kg EP080: BTEXN (QCLot: 97437) EP080: Benzene mg/kg <0.2 1 mg/kg EP080: Ethylbenzene mg/kg <0.5 1 mg/kg EP080: meta- & para-xylene mg/kg <0.5 2 mg/kg EP080: Naphthalene mg/kg <1 1 mg/kg EP080: ortho-xylene mg/kg <0.5 1 mg/kg EP080: Toluene mg/kg <0.5 1 mg/kg Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: 98794) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005T: Arsenic mg/kg EG005T: Cadmium mg/kg MS Low High

291 Page : 11 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: 98794) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: 98795) ES Anonymous EG035T: Mercury mg/kg EP004: Organic Matter (QCLot: 98885) ES Anonymous EP004: Total Organic Carbon 2.66 % EP066: Polychlorinated Biphenyls (PCB) (QCLot: 97441) ES SB28_0.5 EP066: Total Polychlorinated biphenyls 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: 97440) ES SB28_0.5 EP068: 4.4`-DDT mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: gamma-bhc mg/kg EP068: Heptachlor mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: 97440) ES SB28_0.5 EP068: Bromophos-ethyl mg/kg EP068: Chlorpyrifos-methyl mg/kg EP068: Diazinon mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Prothiofos mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: 97439) ES SB28_0.5 EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 97437) ES SB28_0.5 EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: 97438) ES SB28_0.5 EP071: C10 - C14 Fraction 523 mg/kg EP071: C15 - C28 Fraction 2319 mg/kg EP071: C29 - C36 Fraction 1714 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 97437) ES SB28_0.5 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 97438) EP080: C6 - C10 Fraction C6_C mg/kg MS Low High

292 Page : 12 of 12 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: 97438) - continued ES SB28_0.5 EP080: BTEXN (QCLot: 97437) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 3223 mg/kg EP071: >C34 - C40 Fraction 1058 mg/kg ES SB28_0.5 EP080: Benzene mg/kg EP080: Ethylbenzene mg/kg EP080: meta- & para-xylene mg/kg EP080: Naphthalene mg/kg EP080: ortho-xylene mg/kg EP080: Toluene mg/kg MS Low High

293 True QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 7 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : A AUSGRID CABLE ROUTE Date Samples Received : 11-May-2015 Site : RYDE Issue Date : 21-May-2015 Sampler : No. of samples received : 26 Order number : No. of samples analysed : 7 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. NO Matrix Spike outliers occur. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples NO Quality Control Sample Frequency Outliers exist. R I G H T S O L U T I O N S R I G H T P A R T N E R

294 Page : 2 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Analysis Holding Time Compliance This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA002 : ph (Soils) Soil Glass Jar - Unpreserved (EA002) SB26_1.5 EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 SB32_0.2, SB25_1.5, SB26_1.5, EA200: AS Identification of Asbestos in bulk samples Snap Lock Bag - Separate bag received (EA200) SB28_0.5, SB32_0.2, SB27_1.0, SB25_1.5, SB31_0.5, SB29_1.0 Snap Lock Bag - Subsampled by ALS (EA200) SB26_1.5 ED008: Exchangeable Cations Soil Glass Jar - Unpreserved (ED008) SB26_1.5 EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 EG035T: Total Recoverable Mercury by FIMS Soil Glass Jar - Unpreserved (EG035T) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 SB32_0.2, SB25_1.5, SB26_1.5, SB32_0.2, SB25_1.5, SB26_1.5, 11-May May May May May May May May May May Nov May May Nov May May Jun May Jun May May Nov May Nov May May Jun May Jun-2015

295 Page : 3 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP004: Organic Matter Soil Glass Jar - Unpreserved (EP004) SB26_1.5 EP066: Polychlorinated Biphenyls (PCB) Soil Glass Jar - Unpreserved (EP066) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 EP068A: Organochlorine Pesticides (OC) Soil Glass Jar - Unpreserved (EP068) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP071) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 EP075(SIM)A: Phenolic Compounds Soil Glass Jar - Unpreserved (EP075(SIM)) SB32_0.2, SB25_1.5, SB26_1.5, EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) SB28_0.5 EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP080) SB28_0.5, SB27_1.0, SB31_0.5, SB29_1.0 SB32_0.2, SB25_1.5, SB26_1.5, SB32_0.2, SB25_1.5, SB26_1.5, SB32_0.2, SB25_1.5, SB26_1.5, SB27_1.0, SB31_0.5, SB29_1.0 SB32_0.2, SB25_1.5, SB26_1.5, 11-May May Jun May Jun May May May May Jun May May May May Jun May May May May Jun May May May May Jun May May May May Jun May May May May May-2015

296 Page : 4 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Exchangeable Cations with pre-treatment Moisture Content Organic Matter PAH/Phenols (SIM) Pesticides by GCMS ph (1:5) Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Laboratory Control Samples (LCS) Exchangeable Cations with pre-treatment Organic Matter PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) Exchangeable Cations with pre-treatment Organic Matter PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) Organic Matter PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Method ED008 EA EP004 EP075(SIM) EP068 EA002 EP066 EG035T EG005T EP071 EP080 ED008 EP004 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 ED008 EP004 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP004 EP075(SIM) EP068 EP066 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

297 Page : 5 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Quality Control Sample Type Analytical Methods Matrix Spikes (MS) - Continued Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method EG035T EG005T EP071 EP080 Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Count Rate (%) Quality Control Specification QC Regular Actual Expected Evaluation

298 Page : 6 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL Asbestos Identification in Soils EA200 SOIL Exchangeable Cations with pre-treatment ED008 SOIL Total Metals by ICP-AES EG005T SOIL Total Mercury by FIMS EG035T SOIL Organic Matter EP004 SOIL Polychlorinated Biphenyls (PCB) EP066 SOIL Pesticides by GCMS EP068 SOIL TRH - Semivolatile Fraction EP071 SOIL PAH/Phenols (SIM) EP075(SIM) SOIL TRH Volatiles/BTEX EP080 SOIL Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). AS Method for the qualitative identification of asbestos in bulk samples Analysis by Polarised Light Microscopy including dispersion staining In house: Referenced to Rayment & Higginson (2011) Method 15A2. Soluble salts are removed from the sample prior to analysis. Cations are exchanged from the sample by contact with Ammonium Chloride. They are then quantitated in the final solution by ICPAES and reported as meq/100g of original soil. This method is compliant with NEPM (2013) Schedule B(3) (Method 301) In house: Referenced to APHA 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS 3550, APHA 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS , Dichromate oxidation method after Walkley and Black. This method is compliant with NEPM (2013) Schedule B(3) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 504) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This technique is compliant with NEPM (2013) Schedule B(3) (Method 504,505) (USEPA SW A) Sample extracts are analysed by Capillary GC/FID and quantified against alkane standards over the range C10 - C40. (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve. Preparation Methods Method Matrix Organic Matter EP004-PR SOIL Methanolic Extraction of Soils for Purge and Trap * ORG16 SOIL Method Descriptions AS , Dichromate oxidation method after Walkley and Black. This method is compliant with NEPM (2013) Schedule B(3) (Method 105) (USEPA SW A) 5g of solid is shaken with surrogate and 10mL methanol prior to analysis by Purge and Trap - GC/MS.

299 Page : 7 of 7 Work Order : ES Project : A AUSGRID CABLE ROUTE Preparation Methods Method Matrix Tumbler Extraction of Solids ORG17 SOIL Method Descriptions In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis.

300 Work Order SAMPLE RECEIPT NOTIFICATION (SRN) : ES Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : Quote number : ES2014PARBRINSW0202 (EN/008/14) C-O-C number : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Site : RYDE Sampler : Dates Date Samples Received : 20-May-2015 Issue Date : 21-May-2015 Requested Due 27-May-2015 Scheduled Reporting Date : Date Delivery Details : 27-May-2015 Mode of Delivery : Samples On Hand Security Seal : Not Available No. of coolers/boxes : Temperature : 4.1'C Receipt Detail : REBATCH OF ES No. of samples received / analysed : 1 / 1 General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables This is a rebatch of ES Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. R I G H T S O L U T I O N S R I G H T P A R T N E R

301 Issue Date : 21-May-2015 Page : 2 of 2 Work Order : ES Amendment 0 Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exist. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EG005C Leachable Metals by ICPAES SOIL - TCLP TCLP Leach ES [ 07-May-2015 ] SB32_0.2 Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables ACCOUNTS PAYABLE - A4 - AU Tax Invoice (INV) accountspayable@pb.com.au ACCOUNTS PAYABLE(AP INVOICES) - A4 - AU Tax Invoice (INV) apinvoices@pb.com.au IMOGEN POWELL - *AU Certificate of Analysis - NATA (COA) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) (QCI) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA (QC) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT (SRN) ipowell@pb.com.au - A4 - AU Tax Invoice (INV) ipowell@pb.com.au - Chain of Custody (CoC) (COC) ipowell@pb.com.au - EDI Format - ENMRG (ENMRG) ipowell@pb.com.au - EDI Format - ESDAT (ESDAT) ipowell@pb.com.au KELLIE LYNCH - *AU Certificate of Analysis - NATA (COA) kelynch@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) (QCI) kelynch@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA (QC) kelynch@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT (SRN) kelynch@pb.com.au - A4 - AU Tax Invoice (INV) kelynch@pb.com.au - Chain of Custody (CoC) (COC) kelynch@pb.com.au - EDI Format - ENMRG (ENMRG) kelynch@pb.com.au - EDI Format - ESDAT (ESDAT) kelynch@pb.com.au

302 CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : Date Samples Received : 20-May :30 C-O-C number : Date Analysis Commenced : 21-May-2015 Sampler : Issue Date : 27-May :36 Site : RYDE No. of samples received : 1 Quote number : No. of samples analysed : 1 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Shobhna Chandra Metals Coordinator Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

303 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests.

304 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EN33: TCLP Leach Initial ph After HCl ph Extraction Fluid Number Final ph CAS Number sample ID sampling date / time LOR Unit ph Unit ph Unit - ph Unit SB32_0.2 [07-May-2015] ES Result Result Result Result Result

305 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: TCLP LEACHATE (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit SB32_0.2 [07-May-2015] ES Result Result Result Result Result EG005C: Leachable Metals by ICPAES Nickel mg/l <0.1

306 True False QUALITY CONTROL REPORT Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Sampler : Site : RYDE Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 20-May-2015 : 21-May-2015 Issue Date : 27-May-2015 No. of samples received : 1 No. of samples analysed : 1 NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Shobhna Chandra Metals Coordinator Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

307 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

308 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: WATER Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EG005C: Leachable Metals by ICPAES (QC Lot: ) ES SB32_0.2 EG005C: Nickel mg/l <0.1 < No Limit

309 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EN33: TCLP Leach (QCLot: ) EN33a: After HCl ph 0.1 ph Unit 1.0 EN33a: Final ph 0.1 ph Unit 1.0 EN33a: Initial ph 0.1 ph Unit 1.0 Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005C: Leachable Metals by ICPAES (QCLot: ) EG005C: Nickel mg/l < mg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number EG005C: Leachable Metals by ICPAES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005C: Nickel mg/l MS Low High

310 True QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : A AUSGRID CABLE ROUTE Date Samples Received : 20-May-2015 Site : RYDE Issue Date : 27-May-2015 Sampler : No. of samples received : 1 Order number : No. of samples analysed : 1 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. NO Matrix Spike outliers occur. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples Quality Control Sample Frequency Outliers exist - please see following pages for full details. R I G H T S O L U T I O N S R I G H T P A R T N E R

311 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Outliers : Frequency of Quality Control Samples Matrix: SOIL Quality Control Sample Type Method Count Rate (%) QC Regular Actual Expected Method Blanks (MB) TCLP for Non & Semivolatile Analytes Analysis Holding Time Compliance Quality Control Specification This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG005C: Leachable Metals by ICPAES Clear Plastic Bottle - Nitric Acid; Unfiltered (EG005C) SB32_ May May Nov May Nov-2015

312 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Method Blanks (MB) TCLP for Non & Semivolatile Analytes Method EN33a Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation û Quality Control Specification Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Leachable Metals by ICPAES Laboratory Control Samples (LCS) Leachable Metals by ICPAES Method Blanks (MB) Leachable Metals by ICPAES Matrix Spikes (MS) Leachable Metals by ICPAES Method EG005C EG005C EG005C EG005C Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

313 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Leachable Metals by ICPAES EG005C SOIL Method Descriptions In house: referenced to APHA 3120; USEPA SW : The ICPAES technique ionises leachate sample atoms emitting a characteristic spectrum. This spectrum is then compared against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3) Preparation Methods Method Matrix TCLP for Non & Semivolatile Analytes EN33a SOIL Method Descriptions In house QWI-EN/33 referenced to USEPA SW : The TCLP procedure is designed to determine the mobility of both organic and inorganic analytes present in wastes. The standard TCLP leach is for non-volatile and Semivolatile test parameters.

314

315

316

317 SAMPLE RECIEPT ADVICE Details Attention Parsons Brinckerhoff Aust. Pty Ltd Imogen Powell Sample Login Details Your Reference A, Rhodes Envirolab Reference Date Sample Received 23/02/2015 Date Instructions Received 23/02/2015 Date Results Expected to be Reported 02/03/2015 Sample Condition Samples received in appropriate condition for analysis YES No. of Samples Provided 1 Soil Turnaround Time Requested Standard Temperature on receipt ( C) 12.8 Cooling Method Ice Sampling Date Provided YES Comments Samples will be held for 1 month for water samples and 2 months for soil samples from date of receipt of samples Dioxin results available in approx 4 weeks Please direct any queries to: Aileen Hie Jacinta Hurst Phone: Phone: Fax: Fax: ahie@envirolabservices.com.au jhurst@envirolabservices.com.au Sample and Testing Details on following page

318 Sample Id Acid Extractable metals in soil Asbestos ID - soils Dioxins and Furans by NMI Organochlorine Pesticides in soil Organophosphorus Pesticides PAHs in Soil PCBs in Soil svtrh (C10-C40) in Soil VHC's in soil vtrh(c6-c10)/btexn in Soil TRIP02 Page 2 of 2

319 CERTIFICATE OF ANALYSIS : Parsons Brinckerhoff Aust. Pty Ltd GPO Box 5394 Sydney NSW 2001 Attention: Imogen Powell Sample log in details: Your Reference: A, Rhodes No. of samples: 1 Soil Date samples received / completed instructions received 23/02/15 / 23/02/15 Analysis Details: Please refer to the following pages for results, methodology summary and quality control data. Samples were analysed as received from the client. Results relate specifically to the samples as received. Results are reported on a dry weight basis for solids and on an as received basis for other matrices. Please refer to the last page of this report for any comments relating to the results. Report Details: Date results requested by: / Issue Date: 2/03/15 / 11/03/15 Date of Preliminary Report: Not Issued NATA accreditation number This document shall not be reproduced except in full. Accredited for compliance with ISO/IEC Tests not covered by NATA are denoted with *. Results Approved By: Envirolab Reference: Revision No: R 00 Page 1 of 22

320 Reference: A, Rhodes VHC's in soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 Dichlorodifluoromethane mg/kg <1 Chloromethane mg/kg <1 Vinyl Chloride mg/kg <1 Bromomethane mg/kg <1 Chloroethane mg/kg <1 Trichlorofluoromethane mg/kg <1 1,1-Dichloroethene mg/kg <1 trans-1,2-dichloroethene mg/kg <1 1,1-dichloroethane mg/kg <1 cis-1,2-dichloroethene mg/kg <1 bromochloromethane mg/kg <1 chloroform mg/kg <1 2,2-dichloropropane mg/kg <1 1,2-dichloroethane mg/kg <1 1,1,1-trichloroethane mg/kg <1 1,1-dichloropropene mg/kg <1 carbon tetrachloride mg/kg <1 dibromomethane mg/kg <1 1,2-dichloropropane mg/kg <1 trichloroethene mg/kg <1 bromodichloromethane mg/kg <1 trans-1,3-dichloropropene mg/kg <1 cis-1,3-dichloropropene mg/kg <1 1,1,2-trichloroethane mg/kg <1 1,3-dichloropropane mg/kg <1 dibromochloromethane mg/kg <1 1,2-dibromoethane mg/kg <1 tetrachloroethene mg/kg <1 1,1,1,2-tetrachloroethane mg/kg <1 chlorobenzene mg/kg <1 bromoform mg/kg <1 1,1,2,2-tetrachloroethane mg/kg <1 1,2,3-trichloropropane mg/kg <1 bromobenzene mg/kg <1 2-chlorotoluene mg/kg <1 4-chlorotoluene mg/kg <1 1,3-dichlorobenzene mg/kg <1 1,4-dichlorobenzene mg/kg <1 1,2-dichlorobenzene mg/kg <1 1,2-dibromo-3-chloropropane mg/kg <1 Envirolab Reference: Revision No: R 00 Page 2 of 22

321 Reference: A, Rhodes VHC's in soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil 1,2,4-trichlorobenzene mg/kg <1 hexachlorobutadiene mg/kg <1 1,2,3-trichlorobenzene mg/kg <1 Surrogate Dibromofluorometha % 100 Surrogate aaa-trifluorotoluene % 99 Surrogate Toluene-d8 % 110 Surrogate 4-Bromofluorobenzene % 92 Envirolab Reference: Revision No: R 00 Page 3 of 22

322 Reference: A, Rhodes vtrh(c6-c10)/btexn in Soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 TRH C6 - C9 mg/kg <25 TRH C6 - C10 mg/kg <25 vtph C6 - C10 less BTEX (F1) mg/kg <25 Benzene mg/kg <0.2 Toluene mg/kg <0.5 Ethylbenzene mg/kg <1 m+p-xylene mg/kg <2 o-xylene mg/kg <1 naphthalene mg/kg <1 Surrogate aaa-trifluorotoluene % 99 Envirolab Reference: Revision No: R 00 Page 4 of 22

323 Reference: A, Rhodes svtrh (C10-C40) in Soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 TRH C10 - C14 mg/kg <50 TRH C15 - C28 mg/kg <100 TRH C29 - C36 mg/kg <100 TRH >C10-C16 mg/kg <50 TRH >C10 - C16 less Naphthalene (F2) mg/kg <50 TRH >C16-C34 mg/kg <100 TRH >C34-C40 mg/kg <100 Surrogate o-terphenyl % 84 Envirolab Reference: Revision No: R 00 Page 5 of 22

324 Reference: A, Rhodes PAHs in Soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 25/02/2015 Naphthalene mg/kg <0.1 Acenaphthylene mg/kg <0.1 Acenaphthene mg/kg <0.1 Fluorene mg/kg <0.1 Phenanthrene mg/kg <0.1 Anthracene mg/kg <0.1 Fluoranthene mg/kg <0.1 Pyrene mg/kg <0.1 Benzo(a)anthracene mg/kg <0.1 Chrysene mg/kg <0.1 Benzo(b,j+k)fluoranthene mg/kg <0.2 Benzo(a)pyrene mg/kg <0.05 Indeno(1,2,3-c,d)pyrene mg/kg <0.1 Dibenzo(a,h)anthracene mg/kg <0.1 Benzo(g,h,i)perylene mg/kg <0.1 Benzo(a)pyrene TEQ NEPM B1 mg/kg <0.5 Total Positive PAHs mg/kg NIL (+)VE Surrogate p-terphenyl-d14 % 96 Envirolab Reference: Revision No: R 00 Page 6 of 22

325 Reference: A, Rhodes Organochlorine Pesticides in soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 HCB mg/kg <0.1 alpha-bhc mg/kg <0.1 gamma-bhc mg/kg <0.1 beta-bhc mg/kg <0.1 Heptachlor mg/kg <0.1 delta-bhc mg/kg <0.1 Aldrin mg/kg <0.1 Heptachlor Epoxide mg/kg <0.1 gamma-chlordane mg/kg <0.1 alpha-chlordane mg/kg <0.1 Endosulfan I mg/kg <0.1 pp-dde mg/kg <0.1 Dieldrin mg/kg <0.1 Endrin mg/kg <0.1 pp-ddd mg/kg <0.1 Endosulfan II mg/kg <0.1 pp-ddt mg/kg <0.1 Endrin Aldehyde mg/kg <0.1 Endosulfan Sulphate mg/kg <0.1 Methoxychlor mg/kg <0.1 Surrogate TCMX % 85 Envirolab Reference: Revision No: R 00 Page 7 of 22

326 Reference: A, Rhodes Organophosphorus Pesticides Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 Azinphos-methyl (Guthion) mg/kg <0.1 Bromophos-ethyl mg/kg <0.1 Chlorpyriphos mg/kg <0.1 Chlorpyriphos-methyl mg/kg <0.1 Diazinon mg/kg <0.1 Dichlorvos mg/kg <0.1 Dimethoate mg/kg <0.1 Ethion mg/kg <0.1 Fenitrothion mg/kg <0.1 Malathion mg/kg <0.1 Parathion mg/kg <0.1 Ronnel mg/kg <0.1 Surrogate TCMX % 85 Envirolab Reference: Revision No: R 00 Page 8 of 22

327 Reference: A, Rhodes PCBs in Soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date extracted - 25/02/2015 Date analysed - 26/02/2015 Arochlor 1016 mg/kg <0.1 Arochlor 1221 mg/kg <0.1 Arochlor 1232 mg/kg <0.1 Arochlor 1242 mg/kg <0.1 Arochlor 1248 mg/kg <0.1 Arochlor 1254 mg/kg <0.1 Arochlor 1260 mg/kg <0.1 Surrogate TCLMX % 85 Envirolab Reference: Revision No: R 00 Page 9 of 22

328 Reference: A, Rhodes Acid Extractable metals in soil Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date digested - 25/02/2015 Date analysed - 25/02/2015 Arsenic mg/kg 6 Cadmium mg/kg <0.4 Chromium mg/kg 19 Copper mg/kg 43 Lead mg/kg 25 Mercury mg/kg <0.1 Nickel mg/kg 15 Zinc mg/kg 20 Envirolab Reference: Revision No: R 00 Page 10 of 22

329 Reference: A, Rhodes Moisture Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date prepared - 25/02/2015 Date analysed - 26/02/2015 Moisture % 20 Envirolab Reference: Revision No: R 00 Page 11 of 22

330 Reference: A, Rhodes Asbestos ID - soils Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Date analysed - 27/02/2015 Sample mass tested g Approx. 40g Sample Description - Brown coarse-grain soil Asbestos ID in soil - No asbestos detected at reporting limit of 0.1g/kg Organic fibres detected Trace Analysis - No asbestos detected Envirolab Reference: Revision No: R 00 Page 12 of 22

331 Reference: A, Rhodes Dioxins and Furans by NMI Our Reference: UNITS Your Reference - TRIP02 Date Sampled 19/02/2015 Type of sample Soil Dioxin & Furan Analysis - NMI # Envirolab Reference: Revision No: R 00 Page 13 of 22

332 Reference: A, Rhodes Method ID Org-014 Org-016 Org-003 Org-012 subset Org-005 Org-008 Org-006 Metals-020 ICP- AES Methodology Summary Soil samples are extracted with methanol and spiked into water prior to analysing by purge and trap GC-MS. Soil samples are extracted with methanol and spiked into water prior to analysing by purge and trap GC-MS. Water samples are analysed directly by purge and trap GC-MS. F1 = (C6-C10)-BTEX as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater. Soil samples are extracted with Dichloromethane/Acetone and waters with Dichloromethane and analysed by GC-FID. F2 = (>C10-C16)-Naphthalene as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater (HSLs Tables 1A (3, 4)). Note Naphthalene is determined from the VOC analysis. Soil samples are extracted with Dichloromethane/Acetone and waters with Dichloromethane and analysed by GC-MS. Benzo(a)pyrene TEQ as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater For soil results:- 1. TEQ PQL values are assuming all contributing PAHs reported as <PQL are actually at the PQL. This is the most conservative approach and can give false positive TEQs given that PAHs that contribute to the TEQ calculation may not be present. 2. TEQ zero values are assuming all contributing PAHs reported as <PQL are zero. This is the least conservative approach and is more susceptible to false negative TEQs when PAHs that contribute to the TEQ calculation are present but below PQL. 3. TEQ half PQL values are assuming all contributing PAHs reported as <PQL are half the stipulated PQL. Hence a mid-point between the most and least conservative approaches above. Note, the Total +ve PAHs PQL is reflective of the lowest individual PQL and is therefore" Total +ve PAHs" is simply a sum of the positive individual PAHs. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC with dual ECD's. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC with dual ECD's. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC-ECD. Determination of various metals by ICP-AES. Metals-021 CV- AAS Determination of Mercury by Cold Vapour AAS. Inorg-008 ASB-001 Ext-020 Moisture content determined by heating at 105+/-5 deg C for a minimum of 12 hours. Asbestos ID - Qualitative identification of asbestos in bulk samples using Polarised Light Microscopy and Dispersion Staining Techniques including Synthetic Mineral Fibre and Organic Fibre as per Australian Standard Analysis subcontracted to Australian Government - National Measurement Institute. NATA Accreditation No: 198 Envirolab Reference: Revision No: R 00 Page 14 of 22

333 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# VHC's in soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 Dichlorodifluoromethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Chloromethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Vinyl Chloride mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Bromomethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Chloroethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Trichlorofluoromethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,1-Dichloroethene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] trans-1,2-dichloroethene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,1-dichloroethane mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 81% cis-1,2-dichloroethene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] bromochloromethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] chloroform mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 89% 2,2-dichloropropane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2-dichloroethane mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 103% 1,1,1-trichloroethane mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 90% 1,1-dichloropropene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] carbon tetrachloride mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] dibromomethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2-dichloropropane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] trichloroethene mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 80% bromodichloromethane mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 98% trans-1,3- dichloropropene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] cis-1,3-dichloropropene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,1,2-trichloroethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,3-dichloropropane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] dibromochloromethane mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 98% 1,2-dibromoethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] tetrachloroethene mg/kg 1 Org-014 <1 [NT] [NT] LCS-1 93% 1,1,1,2- tetrachloroethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] chlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] bromoform mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,1,2,2- tetrachloroethane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2,3-trichloropropane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] bromobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 2-chlorotoluene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 4-chlorotoluene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,3-dichlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,4-dichlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2-dichlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2-dibromo-3- chloropropane mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Envirolab Reference: Revision No: R 00 Page 15 of 22

334 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# VHC's in soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD 1,2,4-trichlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] hexachlorobutadiene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] 1,2,3-trichlorobenzene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Surrogate Dibromofluorometha Surrogate aaa- Trifluorotoluene % Org [NT] [NT] LCS-1 94% % Org [NT] [NT] LCS-1 103% Surrogate Toluene-d8 % Org [NT] [NT] LCS-1 101% Surrogate 4- Bromofluorobenzene % Org [NT] [NT] LCS-1 100% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# vtrh(c6-c10)/btexn in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 TRH C6 - C9 mg/kg 25 Org-016 <25 [NT] [NT] LCS-1 92% TRH C6 - C10 mg/kg 25 Org-016 <25 [NT] [NT] LCS-1 92% Benzene mg/kg 0.2 Org-016 <0.2 [NT] [NT] LCS-1 83% Toluene mg/kg 0.5 Org-016 <0.5 [NT] [NT] LCS-1 95% Ethylbenzene mg/kg 1 Org-016 <1 [NT] [NT] LCS-1 90% m+p-xylene mg/kg 2 Org-016 <2 [NT] [NT] LCS-1 96% o-xylene mg/kg 1 Org-016 <1 [NT] [NT] LCS-1 92% naphthalene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Surrogate aaa- Trifluorotoluene % Org [NT] [NT] LCS-1 103% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# svtrh (C10-C40) in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 TRH C10 - C14 mg/kg 50 Org-003 <50 [NT] [NT] LCS-1 101% TRH C15 - C28 mg/kg 100 Org-003 <100 [NT] [NT] LCS-1 107% TRH C29 - C36 mg/kg 100 Org-003 <100 [NT] [NT] LCS-1 73% TRH >C10-C16 mg/kg 50 Org-003 <50 [NT] [NT] LCS-1 101% TRH >C16-C34 mg/kg 100 Org-003 <100 [NT] [NT] LCS-1 107% TRH >C34-C40 mg/kg 100 Org-003 <100 [NT] [NT] LCS-1 73% Surrogate o-terphenyl % Org [NT] [NT] LCS-1 103% Envirolab Reference: Revision No: R 00 Page 16 of 22

335 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# PAHs in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 25/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 25/02/2015 Naphthalene mg/kg 0.1 Org-012 subset Acenaphthylene mg/kg 0.1 Org-012 subset Acenaphthene mg/kg 0.1 Org-012 subset Fluorene mg/kg 0.1 Org-012 subset Phenanthrene mg/kg 0.1 Org-012 subset Anthracene mg/kg 0.1 Org-012 subset Fluoranthene mg/kg 0.1 Org-012 subset Pyrene mg/kg 0.1 Org-012 subset Benzo(a)anthracene mg/kg 0.1 Org-012 subset Chrysene mg/kg 0.1 Org-012 subset Benzo(b,j+k) fluoranthene mg/kg 0.2 Org-012 subset Benzo(a)pyrene mg/kg 0.05 Org-012 subset Indeno(1,2,3-c,d)pyrene mg/kg 0.1 Org-012 subset Dibenzo(a,h)anthracene mg/kg 0.1 Org-012 subset Benzo(g,h,i)perylene mg/kg 0.1 Org-012 subset Surrogate p-terphenyld14 % Org-012 subset <0.1 [NT] [NT] LCS-1 107% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-1 108% <0.1 [NT] [NT] LCS-1 103% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-1 103% <0.1 [NT] [NT] LCS-1 120% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-1 100% <0.2 [NT] [NT] [NR] [NR] <0.05 [NT] [NT] LCS-1 113% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] 104 [NT] [NT] LCS-1 103% Envirolab Reference: Revision No: R 00 Page 17 of 22

336 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Organochlorine Pesticides in soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 HCB mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] alpha-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 90% gamma-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] beta-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 102% Heptachlor mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 91% delta-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Aldrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 111% Heptachlor Epoxide mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 95% gamma-chlordane mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] alpha-chlordane mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endosulfan I mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] pp-dde mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 105% Dieldrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 97% Endrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 99% pp-ddd mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 101% Endosulfan II mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] pp-ddt mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endrin Aldehyde mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endosulfan Sulphate mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-1 104% Methoxychlor mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Surrogate TCMX % Org [NT] [NT] LCS-1 82% Envirolab Reference: Revision No: R 00 Page 18 of 22

337 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Organophosphorus Pesticides Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 Azinphos-methyl (Guthion) mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 99% Bromophos-ethyl mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Chlorpyriphos mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 104% Chlorpyriphos-methyl mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Diazinon mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Dichlorvos mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 82% Dimethoate mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Ethion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 105% Fenitrothion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 84% Malathion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 86% Parathion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-1 104% Ronnel mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Surrogate TCMX % Org [NT] [NT] LCS-1 83% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# PCBs in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 25/02/2 015 Date analysed - 26/02/2 015 [NT] [NT] LCS-1 25/02/2015 [NT] [NT] LCS-1 26/02/2015 Arochlor 1016 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1221 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1232 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1242 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1248 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1254 mg/kg 0.1 Org-006 <0.1 [NT] [NT] LCS-1 126% Arochlor 1260 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Surrogate TCLMX % Org [NT] [NT] LCS-1 107% Envirolab Reference: Revision No: R 00 Page 19 of 22

338 Reference: A, Rhodes QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Acid Extractable metals in soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date digested - 25/02/2 015 Date analysed - 25/02/2 015 [NT] [NT] LCS-3 25/02/2015 [NT] [NT] LCS-3 25/02/2015 Arsenic mg/kg 4 Metals-020 ICP-AES Cadmium mg/kg 0.4 Metals-020 ICP-AES Chromium mg/kg 1 Metals-020 ICP-AES Copper mg/kg 1 Metals-020 ICP-AES Lead mg/kg 1 Metals-020 ICP-AES Mercury mg/kg 0.1 Metals-021 CV-AAS Nickel mg/kg 1 Metals-020 ICP-AES Zinc mg/kg 1 Metals-020 ICP-AES <4 [NT] [NT] LCS-3 112% <0.4 [NT] [NT] LCS-3 107% <1 [NT] [NT] LCS-3 108% <1 [NT] [NT] LCS-3 109% <1 [NT] [NT] LCS-3 103% <0.1 [NT] [NT] LCS-3 97% <1 [NT] [NT] LCS-3 106% <1 [NT] [NT] LCS-3 105% QUALITY CONTROL UNITS PQL METHOD Blank Dioxins and Furans by NMI Dioxin & Furan Analysis - NMI Ext-020 [NT] Envirolab Reference: Revision No: R 00 Page 20 of 22

339 Reference: A, Rhodes Report Comments: Asbestos-ID in soil: A portion of the supplied sample was sub-sampled for asbestos analysis according to Envirolab procedures. We cannot guarantee that this sub-sample is indicative of the entire sample. Envirolab recommends supplying 40-50g of sample in its own container. Dioxin analysed by NMI, report no ENV168/ Asbestos ID was analysed by Approved Identifier: Asbestos ID was authorised by Approved Signatory: Paul Ching Paul Ching INS: Insufficient sample for this test PQL: Practical Quantitation Limit NT: Not tested NA: Test not required RPD: Relative Percent Difference NA: Test not required <: Less than >: Greater than LCS: Laboratory Control Sample Envirolab Reference: Revision No: R 00 Page 21 of 22

340 Reference: A, Rhodes Quality Control Definitions Blank: This is the component of the analytical signal which is not derived from the sample but from reagents, glassware etc, can be determined by processing solvents and reagents in exactly the same manner as for samples. Duplicate: This is the complete duplicate analysis of a sample from the process batch. If possible, the sample selected should be one where the analyte concentration is easily measurable. Matrix Spike : A portion of the sample is spiked with a known concentration of target analyte. The purpose of the matrix spike is to monitor the performance of the analytical method used and to determine whether matrix interferences exist. LCS (Laboratory Control Sample) : This comprises either a standard reference material or a control matrix (such as a blank sand or water) fortified with analytes representative of the analyte class. It is simply a check sample. Surrogate Spike: Surrogates are known additions to each sample, blank, matrix spike and LCS in a batch, of compounds which are similar to the analyte of interest, however are not expected to be found in real samples. Laboratory Acceptance Criteria Duplicate sample and matrix spike recoveries may not be reported on smaller jobs, however, were analysed at a frequency to meet or exceed NEPM requirements. All samples are tested in batches of 20. The duplicate sample RPD and matrix spike recoveries for the batch were within the laboratory acceptance criteria. Filters, swabs, wipes, tubes and badges will not have duplicate data as the whole sample is generally extracted during sample extraction. Spikes for Physical and Aggregate Tests are not applicable. For VOCs in water samples, three vials are required for duplicate or spike analysis. Duplicates: <5xPQL - any RPD is acceptable; >5xPQL % RPD is acceptable. Matrix Spikes, LCS and Surrogate recoveries: Generally % for inorganics/metals; % for organics and % for SVOC and speciated phenols is acceptable. In circumstances where no duplicate and/or sample spike has been reported at 1 in 10 and/or 1 in 20 samples respectively, the sample volume submitted was insufficient in order to satisfy laboratory QA/QC protocols. When samples are received where certain analytes are outside of recommended technical holding times (THTs), the analysis has proceeded. Where analytes are on the verge of breaching THTs, every effort will be made to analyse within the THT or as soon as practicable. Envirolab Reference: Revision No: R 00 Page 22 of 22

341

342

343

344

345

346 SAMPLE RECEIPT ADVICE : Parsons Brinckerhoff Aust. Pty Ltd ph: GPO Box 5394 Fax: Sydney NSW 2001 Attention: Kellie Lynch Sample log in details: Your reference: A, Meadowbank Envirolab Reference: Date received: 26/02/2015 Date results expected to be reported: 5/03/15 Samples received in appropriate condition for analysis: YES No. of samples provided 1 Soil Turnaround time requested: Standard Temperature on receipt ( C) 4.8 Cooling Method: Ice Pack Sampling Date Provided: YES Comments: If there is sufficient sample after testing, samples will be held for the following time frames from date of receipt of samples: Water samples - 1 month Soil and other solid samples - 2 months Samples collected in canisters - 1 week. Canisters will then be cleaned. All other samples are not retained after analysis If you require samples to be retained for longer periods then retention fees will apply as per our pricelist. Contact details: Please direct any queries to Aileen Hie or Jacinta Hurst ph: fax: ahie@envirolabservices.com.au or jhurst@envirolabservices.com.au Page 1 of 1

347 CERTIFICATE OF ANALYSIS : Parsons Brinckerhoff Aust. Pty Ltd GPO Box 5394 Sydney NSW 2001 Attention: Kellie Lynch Sample log in details: Your Reference: A, Meadowbank No. of samples: 1 Soil Date samples received / completed instructions received 26/02/2015 / 26/02/2015 Analysis Details: Please refer to the following pages for results, methodology summary and quality control data. Samples were analysed as received from the client. Results relate specifically to the samples as received. Results are reported on a dry weight basis for solids and on an as received basis for other matrices. Please refer to the last page of this report for any comments relating to the results. Report Details: Date results requested by: / Issue Date: 5/03/15 / 5/03/15 Date of Preliminary Report: Not Issued NATA accreditation number This document shall not be reproduced except in full. Accredited for compliance with ISO/IEC Tests not covered by NATA are denoted with *. Results Approved By: Envirolab Reference: Revision No: R 00 Page 1 of 17

348 Reference: A, Meadowbank vtrh(c6-c10)/btexn in Soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 TRH C6 - C9 mg/kg <25 TRH C6 - C10 mg/kg <25 vtph C6 - C10 less BTEX (F1) mg/kg <25 Benzene mg/kg <0.2 Toluene mg/kg <0.5 Ethylbenzene mg/kg <1 m+p-xylene mg/kg <2 o-xylene mg/kg <1 naphthalene mg/kg <1 Surrogate aaa-trifluorotoluene % 87 Envirolab Reference: Revision No: R 00 Page 2 of 17

349 Reference: A, Meadowbank svtrh (C10-C40) in Soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 TRH C10 - C14 mg/kg <50 TRH C15 - C28 mg/kg <100 TRH C29 - C36 mg/kg <100 TRH >C10-C16 mg/kg <50 TRH >C10 - C16 less Naphthalene (F2) mg/kg <50 TRH >C16-C34 mg/kg <100 TRH >C34-C40 mg/kg <100 Surrogate o-terphenyl % 83 Envirolab Reference: Revision No: R 00 Page 3 of 17

350 Reference: A, Meadowbank PAHs in Soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 Naphthalene mg/kg <0.1 Acenaphthylene mg/kg <0.1 Acenaphthene mg/kg <0.1 Fluorene mg/kg <0.1 Phenanthrene mg/kg <0.1 Anthracene mg/kg <0.1 Fluoranthene mg/kg <0.1 Pyrene mg/kg <0.1 Benzo(a)anthracene mg/kg <0.1 Chrysene mg/kg <0.1 Benzo(b,j+k)fluoranthene mg/kg <0.2 Benzo(a)pyrene mg/kg <0.05 Indeno(1,2,3-c,d)pyrene mg/kg <0.1 Dibenzo(a,h)anthracene mg/kg <0.1 Benzo(g,h,i)perylene mg/kg <0.1 Benzo(a)pyrene TEQ calc (zero) mg/kg <0.5 Benzo(a)pyrene TEQ calc(half) mg/kg <0.5 Benzo(a)pyrene TEQ calc(pql) mg/kg <0.5 Total Positive PAHs mg/kg NIL (+)VE Surrogate p-terphenyl-d14 % 94 Envirolab Reference: Revision No: R 00 Page 4 of 17

351 Reference: A, Meadowbank Organochlorine Pesticides in soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 HCB mg/kg <0.1 alpha-bhc mg/kg <0.1 gamma-bhc mg/kg <0.1 beta-bhc mg/kg <0.1 Heptachlor mg/kg <0.1 delta-bhc mg/kg <0.1 Aldrin mg/kg <0.1 Heptachlor Epoxide mg/kg <0.1 gamma-chlordane mg/kg <0.1 alpha-chlordane mg/kg <0.1 Endosulfan I mg/kg <0.1 pp-dde mg/kg <0.1 Dieldrin mg/kg <0.1 Endrin mg/kg <0.1 pp-ddd mg/kg <0.1 Endosulfan II mg/kg <0.1 pp-ddt mg/kg <0.1 Endrin Aldehyde mg/kg <0.1 Endosulfan Sulphate mg/kg <0.1 Methoxychlor mg/kg <0.1 Surrogate TCMX % 70 Envirolab Reference: Revision No: R 00 Page 5 of 17

352 Reference: A, Meadowbank Organophosphorus Pesticides Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 Azinphos-methyl (Guthion) mg/kg <0.1 Bromophos-ethyl mg/kg <0.1 Chlorpyriphos mg/kg <0.1 Chlorpyriphos-methyl mg/kg <0.1 Diazinon mg/kg <0.1 Dichlorvos mg/kg <0.1 Dimethoate mg/kg <0.1 Ethion mg/kg <0.1 Fenitrothion mg/kg <0.1 Malathion mg/kg <0.1 Parathion mg/kg <0.1 Ronnel mg/kg <0.1 Surrogate TCMX % 70 Envirolab Reference: Revision No: R 00 Page 6 of 17

353 Reference: A, Meadowbank PCBs in Soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date extracted - 27/02/2015 Date analysed - 28/02/2015 Arochlor 1016 mg/kg <0.1 Arochlor 1221 mg/kg <0.1 Arochlor 1232 mg/kg <0.1 Arochlor 1242 mg/kg <0.1 Arochlor 1248 mg/kg <0.1 Arochlor 1254 mg/kg <0.1 Arochlor 1260 mg/kg <0.1 Surrogate TCLMX % 70 Envirolab Reference: Revision No: R 00 Page 7 of 17

354 Reference: A, Meadowbank Acid Extractable metals in soil Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date digested - 27/02/2015 Date analysed - 27/02/2015 Arsenic mg/kg 4 Cadmium mg/kg <0.4 Chromium mg/kg 19 Copper mg/kg 9 Lead mg/kg 25 Mercury mg/kg <0.1 Nickel mg/kg <1 Zinc mg/kg 2 Envirolab Reference: Revision No: R 00 Page 8 of 17

355 Reference: A, Meadowbank Moisture Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date prepared - 27/02/2015 Date analysed - 2/03/2015 Moisture % 20 Envirolab Reference: Revision No: R 00 Page 9 of 17

356 Reference: A, Meadowbank Asbestos ID - soils Our Reference: UNITS Your Reference - Trip04 Date Sampled 24/02/2015 Type of sample Soil Date analysed - 5/03/2015 Sample mass tested g Approx 35g Sample Description - Pinkish fine grain soil Asbestos ID in soil - No asbestos detected at reporting limit of 0.1g/kg Organic fibres detected Trace Analysis - No asbestos detected Envirolab Reference: Revision No: R 00 Page 10 of 17

357 Reference: A, Meadowbank Method ID Org-016 Org-014 Org-003 Org-012 subset Org-005 Org-008 Org-006 Metals-020 ICP- AES Methodology Summary Soil samples are extracted with methanol and spiked into water prior to analysing by purge and trap GC-MS. Water samples are analysed directly by purge and trap GC-MS. F1 = (C6-C10)-BTEX as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater. Soil samples are extracted with methanol and spiked into water prior to analysing by purge and trap GC-MS. Soil samples are extracted with Dichloromethane/Acetone and waters with Dichloromethane and analysed by GC-FID. F2 = (>C10-C16)-Naphthalene as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater (HSLs Tables 1A (3, 4)). Note Naphthalene is determined from the VOC analysis. Soil samples are extracted with Dichloromethane/Acetone and waters with Dichloromethane and analysed by GC-MS. Benzo(a)pyrene TEQ as per NEPM B1 Guideline on Investigation Levels for Soil and Groundwater For soil results:- 1. TEQ PQL values are assuming all contributing PAHs reported as <PQL are actually at the PQL. This is the most conservative approach and can give false positive TEQs given that PAHs that contribute to the TEQ calculation may not be present. 2. TEQ zero values are assuming all contributing PAHs reported as <PQL are zero. This is the least conservative approach and is more susceptible to false negative TEQs when PAHs that contribute to the TEQ calculation are present but below PQL. 3. TEQ half PQL values are assuming all contributing PAHs reported as <PQL are half the stipulated PQL. Hence a mid-point between the most and least conservative approaches above. Note, the Total +ve PAHs PQL is reflective of the lowest individual PQL and is therefore" Total +ve PAHs" is simply a sum of the positive individual PAHs. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC with dual ECD's. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC with dual ECD's. Soil samples are extracted with dichloromethane/acetone and waters with dichloromethane and analysed by GC-ECD. Determination of various metals by ICP-AES. Metals-021 CV- AAS Determination of Mercury by Cold Vapour AAS. Inorg-008 ASB-001 Moisture content determined by heating at 105+/-5 deg C for a minimum of 12 hours. Asbestos ID - Qualitative identification of asbestos in bulk samples using Polarised Light Microscopy and Dispersion Staining Techniques including Synthetic Mineral Fibre and Organic Fibre as per Australian Standard Envirolab Reference: Revision No: R 00 Page 11 of 17

358 Reference: QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# vtrh(c6-c10)/btexn in Soil A, Meadowbank Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 28/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 28/02/2015 TRH C6 - C9 mg/kg 25 Org-016 <25 [NT] [NT] LCS-2 109% TRH C6 - C10 mg/kg 25 Org-016 <25 [NT] [NT] LCS-2 109% Benzene mg/kg 0.2 Org-016 <0.2 [NT] [NT] LCS-2 103% Toluene mg/kg 0.5 Org-016 <0.5 [NT] [NT] LCS-2 104% Ethylbenzene mg/kg 1 Org-016 <1 [NT] [NT] LCS-2 107% m+p-xylene mg/kg 2 Org-016 <2 [NT] [NT] LCS-2 115% o-xylene mg/kg 1 Org-016 <1 [NT] [NT] LCS-2 112% naphthalene mg/kg 1 Org-014 <1 [NT] [NT] [NR] [NR] Surrogate aaa- Trifluorotoluene % Org [NT] [NT] LCS-2 85% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# svtrh (C10-C40) in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 28/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 28/02/2015 TRH C10 - C14 mg/kg 50 Org-003 <50 [NT] [NT] LCS-2 102% TRH C15 - C28 mg/kg 100 Org-003 <100 [NT] [NT] LCS-2 112% TRH C29 - C36 mg/kg 100 Org-003 <100 [NT] [NT] LCS-2 79% TRH >C10-C16 mg/kg 50 Org-003 <50 [NT] [NT] LCS-2 102% TRH >C16-C34 mg/kg 100 Org-003 <100 [NT] [NT] LCS-2 112% TRH >C34-C40 mg/kg 100 Org-003 <100 [NT] [NT] LCS-2 79% Surrogate o-terphenyl % Org [NT] [NT] LCS-2 102% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# PAHs in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 27/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 27/02/2015 Naphthalene mg/kg 0.1 Org-012 subset Acenaphthylene mg/kg 0.1 Org-012 subset Acenaphthene mg/kg 0.1 Org-012 subset Fluorene mg/kg 0.1 Org-012 subset Phenanthrene mg/kg 0.1 Org-012 subset Anthracene mg/kg 0.1 Org-012 subset Fluoranthene mg/kg 0.1 Org-012 subset <0.1 [NT] [NT] LCS-2 90% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-2 104% <0.1 [NT] [NT] LCS-2 102% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-2 98% Envirolab Reference: Revision No: R 00 Page 12 of 17

359 Reference: QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# PAHs in Soil A, Meadowbank Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Pyrene mg/kg 0.1 Org-012 subset Benzo(a)anthracene mg/kg 0.1 Org-012 subset Chrysene mg/kg 0.1 Org-012 subset <0.1 [NT] [NT] LCS-2 115% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] LCS-2 92% Benzo(b,j+k) fluoranthene mg/kg 0.2 Org-012 subset Benzo(a)pyrene mg/kg 0.05 Org-012 subset Indeno(1,2,3-c,d)pyrene mg/kg 0.1 Org-012 subset Dibenzo(a,h)anthracene mg/kg 0.1 Org-012 subset Benzo(g,h,i)perylene mg/kg 0.1 Org-012 subset Surrogate p-terphenyld14 % Org-012 subset QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Organochlorine Pesticides in soil <0.2 [NT] [NT] [NR] [NR] <0.05 [NT] [NT] LCS-2 101% <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] <0.1 [NT] [NT] [NR] [NR] 91 [NT] [NT] LCS-2 92% Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 28/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 28/02/2015 HCB mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] alpha-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 123% gamma-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] beta-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 115% Heptachlor mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 116% delta-bhc mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Aldrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 119% Heptachlor Epoxide mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 119% gamma-chlordane mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] alpha-chlordane mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endosulfan I mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] pp-dde mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 113% Dieldrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 119% Endrin mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 93% pp-ddd mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 128% Endosulfan II mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] pp-ddt mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endrin Aldehyde mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Endosulfan Sulphate mg/kg 0.1 Org-005 <0.1 [NT] [NT] LCS-2 116% Methoxychlor mg/kg 0.1 Org-005 <0.1 [NT] [NT] [NR] [NR] Surrogate TCMX % Org [NT] [NT] LCS-2 85% Envirolab Reference: Revision No: R 00 Page 13 of 17

360 Reference: QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Organophosphorus Pesticides A, Meadowbank Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 28/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 28/02/2015 Azinphos-methyl (Guthion) mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 103% Bromophos-ethyl mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Chlorpyriphos mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 117% Chlorpyriphos-methyl mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Diazinon mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Dichlorvos mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 90% Dimethoate mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Ethion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 110% Fenitrothion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 83% Malathion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 79% Parathion mg/kg 0.1 Org-008 <0.1 [NT] [NT] LCS-2 120% Ronnel mg/kg 0.1 Org-008 <0.1 [NT] [NT] [NR] [NR] Surrogate TCMX % Org [NT] [NT] LCS-2 95% QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# PCBs in Soil Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date extracted - 27/02/2 015 Date analysed - 27/02/2 015 [NT] [NT] LCS-2 27/02/2015 [NT] [NT] LCS-2 28/02/2015 Arochlor 1016 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1221 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1232 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1242 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1248 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Arochlor 1254 mg/kg 0.1 Org-006 <0.1 [NT] [NT] LCS-2 102% Arochlor 1260 mg/kg 0.1 Org-006 <0.1 [NT] [NT] [NR] [NR] Surrogate TCLMX % Org [NT] [NT] LCS-2 79% Envirolab Reference: Revision No: R 00 Page 14 of 17

361 Reference: QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Acid Extractable metals in soil A, Meadowbank Duplicate results Spike Sm# Spike % Recovery Base ll Duplicate ll %RPD Date digested - 27/02/2 015 Date analysed - 27/02/2 015 [NT] [NT] LCS-6 27/02/2015 [NT] [NT] LCS-6 27/02/2015 Arsenic mg/kg 4 Metals-020 ICP-AES Cadmium mg/kg 0.4 Metals-020 ICP-AES Chromium mg/kg 1 Metals-020 ICP-AES Copper mg/kg 1 Metals-020 ICP-AES Lead mg/kg 1 Metals-020 ICP-AES Mercury mg/kg 0.1 Metals-021 CV-AAS Nickel mg/kg 1 Metals-020 ICP-AES Zinc mg/kg 1 Metals-020 ICP-AES <4 [NT] [NT] LCS-6 103% <0.4 [NT] [NT] LCS-6 102% <1 [NT] [NT] LCS-6 99% <1 [NT] [NT] LCS-6 102% <1 [NT] [NT] LCS-6 98% <0.1 [NT] [NT] LCS-6 91% <1 [NT] [NT] LCS-6 97% <1 [NT] [NT] LCS-6 97% Envirolab Reference: Revision No: R 00 Page 15 of 17

362 Reference: A, Meadowbank Report Comments: Asbestos: A portion of the supplied sample was sub-sampled for asbestos analysis according to Envirolab procedures. We cannot guarantee that this sub-sample is indicative of the entire sample. Envirolab recommends supplying 40-50g of sample in its own container. Asbestos ID was analysed by Approved Identifier: Asbestos ID was authorised by Approved Signatory: Lulu Guo Lulu Guo INS: Insufficient sample for this test PQL: Practical Quantitation Limit NT: Not tested NA: Test not required RPD: Relative Percent Difference NA: Test not required <: Less than >: Greater than LCS: Laboratory Control Sample Envirolab Reference: Revision No: R 00 Page 16 of 17

363 Reference: A, Meadowbank Quality Control Definitions Blank: This is the component of the analytical signal which is not derived from the sample but from reagents, glassware etc, can be determined by processing solvents and reagents in exactly the same manner as for samples. Duplicate: This is the complete duplicate analysis of a sample from the process batch. If possible, the sample selected should be one where the analyte concentration is easily measurable. Matrix Spike : A portion of the sample is spiked with a known concentration of target analyte. The purpose of the matrix spike is to monitor the performance of the analytical method used and to determine whether matrix interferences exist. LCS (Laboratory Control Sample) : This comprises either a standard reference material or a control matrix (such as a blank sand or water) fortified with analytes representative of the analyte class. It is simply a check sample. Surrogate Spike: Surrogates are known additions to each sample, blank, matrix spike and LCS in a batch, of compounds which are similar to the analyte of interest, however are not expected to be found in real samples. Laboratory Acceptance Criteria Duplicate sample and matrix spike recoveries may not be reported on smaller jobs, however, were analysed at a frequency to meet or exceed NEPM requirements. All samples are tested in batches of 20. The duplicate sample RPD and matrix spike recoveries for the batch were within the laboratory acceptance criteria. Filters, swabs, wipes, tubes and badges will not have duplicate data as the whole sample is generally extracted during sample extraction. Spikes for Physical and Aggregate Tests are not applicable. For VOCs in water samples, three vials are required for duplicate or spike analysis. Duplicates: <5xPQL - any RPD is acceptable; >5xPQL % RPD is acceptable. Matrix Spikes, LCS and Surrogate recoveries: Generally % for inorganics/metals; % for organics and % for SVOC and speciated phenols is acceptable. In circumstances where no duplicate and/or sample spike has been reported at 1 in 10 and/or 1 in 20 samples respectively, the sample volume submitted was insufficient in order to satisfy laboratory QA/QC protocols. When samples are received where certain analytes are outside of recommended technical holding times (THTs), the analysis has proceeded. Where analytes are on the verge of breaching THTs, every effort will be made to analyse within the THT or as soon as practicable. Envirolab Reference: Revision No: R 00 Page 17 of 17

364

365

366

367 Work Order Environmental SAMPLE RECEIPT NOTIFICATION (SRN) : ES Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 3 Order number : Quote number : ES2014PARBRINSW0202 (EN/008/14) C-O-C number : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Site : RHODES Sampler : Dates Date Samples Received : 17-Jul :40 PM Issue Date : 17-Jul-2015 Requested Due 24-Jul-2015 Scheduled Reporting Date : Date Delivery Details : 24-Jul-2015 Mode of Delivery : Pickup Security Seal : Intact. No. of coolers/boxes : Temperature : 8.9'C - Ice present Receipt Detail : No. of samples received / analysed : 31 / 12 General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables Sample RB_ was not received nitric acid preserved bottle, therefore metal analysis could not be conducted. Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Sample(s) requiring volatile organic compound analysis received in airtight containers (ZHE). Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. EA200: As only one sample container was submitted for multiple tests, sub sampling was conducted prior to Asbestos analysis. As this has the potential to understate detection, results should be scrutinised accordingly. R I G H T S O L U T I O N S R I G H T P A R T N E R

368 Issue Date : 17-Jul-2015 Page : 2 of 3 Work Order : ES Amendment 0 Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. Method sample ID Asbestos Identification in Soils : EA200 SB8A_0.5 SB8B_0.5 Sample Container Received - Snap Lock Bag - Subsampled by ALS - Snap Lock Bag - Subsampled by ALS Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EA Moisture Content SOIL - EA200 Asbestos Identification in Soils - ES [ 15-Jul-2015 ] SB3A_0.3 SOIL - S-02 8 Metals (incl. Digestion) ES [ 15-Jul-2015 ] SB3A_0.5 ES [ 15-Jul-2015 ] DUP06 ES [ 15-Jul-2015 ] TRIP06 ES [ 15-Jul-2015 ] SB5A_0.5 ES [ 15-Jul-2015 ] SB5A_1.0 ES [ 15-Jul-2015 ] SB8A_0.5 ES [ 15-Jul-2015 ] SB8B_0.5 ES [ 15-Jul-2015 ] SB5D_0.5 ES [ 15-Jul-2015 ] SB15C_0.5 Preferred Sample Container for Analysis - Snap Lock Bag - ACM/Asbestos Grab Sample bag - Snap Lock Bag - ACM/Asbestos Grab Sample bag SOIL - S-16 TRH/BTEXN/PAH/OC/OP/PCB/8Metals Matrix: SOIL Laboratory sample ID sampling date / time sample ID (On Hold) SOIL No analysis requested ES [ 15-Jul-2015 ] SB3A_0.1 ES [ 15-Jul-2015 ] SB3A_0.7 ES [ 15-Jul-2015 ] SB3A_1.0 ES [ 15-Jul-2015 ] SB3A_1.2 ES [ 15-Jul-2015 ] SB3A_1.5 ES [ 15-Jul-2015 ] SB5A_0.1 ES [ 15-Jul-2015 ] SB5A_1.5 ES [ 15-Jul-2015 ] SB8A_1.0 ES [ 15-Jul-2015 ] SB8A_1.5 ES [ 15-Jul-2015 ] SB8B_0.1

369 Issue Date : 17-Jul-2015 Page : 3 of 3 Work Order : ES Amendment 0 (On Hold) SOIL No analysis requested ES [ 15-Jul-2015 ] DUP05 ES [ 15-Jul-2015 ] TRIP05 ES [ 15-Jul-2015 ] SB8B_1.0 ES [ 15-Jul-2015 ] SB8B_1.5 ES [ 15-Jul-2015 ] SB15D_0.1 ES [ 15-Jul-2015 ] SB15D_1.0 ES [ 15-Jul-2015 ] SB15C_0.1 ES [ 15-Jul-2015 ] SB15C_1.0 ES [ 15-Jul-2015 ] SB15C_1.2 Matrix: WATER Laboratory sample ID sampling date / time sample ID WATER - W-04 TRH/BTEXN WATER - W-07 TRH/BTEXN/PAH ES [ 15-Jul-2015 ] RB_ ES [ 15-Jul-2015 ] TB_ WATER - W-13 OC/OP/PCB Proactive Holding Time Report Sample(s) have been received within the recommended holding times for the requested analysis. Requested Deliverables ACCOUNTS PAYABLE - A4 - AU Tax Invoice (INV) accountspayable@pb.com.au IMOGEN POWELL - *AU Certificate of Analysis - NATA (COA) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) (QCI) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA (QC) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT (SRN) ipowell@pb.com.au - A4 - AU Tax Invoice (INV) ipowell@pb.com.au - Chain of Custody (CoC) (COC) ipowell@pb.com.au - EDI Format - ENMRG (ENMRG) ipowell@pb.com.au - EDI Format - ESDAT (ESDAT) ipowell@pb.com.au

370 Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 14 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : Date Samples Received : 17-Jul :40 C-O-C number : Date Analysis Commenced : 20-Jul-2015 Sampler : Issue Date : 24-Jul :35 Site : RHODES No. of samples received : 31 Quote number : No. of samples analysed : 12 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results Descriptive Results NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Christopher Owler Team Leader - Asbestos Newcastle - Asbestos Pabi Subba Senior Organic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics R I G H T S O L U T I O N S R I G H T P A R T N E R

371 Page : 2 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests. EA200: As only one sample container was submitted for multiple tests, sub sampling was conducted prior to Asbestos analysis. As this has the potential to understate detection, results should be scrutinised accordingly. EA200 'Am' Amosite (brown asbestos) EA200 'Cr' Crocidolite (blue asbestos) EA200 'Trace' - Asbestos fibres ("Free Fibres") detected by trace analysis per AS4964. The result can be interpreted that the sample contains detectable 'respirable' asbestos fibres EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining. EA200 Legend EA200 'Ch' Chrysotile (white asbestos) EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended. EA200: Negative results for vinyl tiles should be confirmed by an independent analytical technique. Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero, for 'TEQ 1/2LOR' are treated as half the reported LOR, and for 'TEQ LOR' are treated as being equal to the reported LOR. Note: TEQ 1/2LOR and TEQ LOR will calculate as 0.6mg/Kg and 1.2mg/Kg respectively for samples with non-detects for all of the eight TEQ PAHs. EA200: For samples larger than 30g, the <2mm fraction may be sub-sampled prior to trace analysis as outlined in ISO23909:2008(E) Sect Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero.

372 Page : 3 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES DUP06 [15-Jul-2015] ES TRIP06 [15-Jul-2015] ES SB5A_0.5 [15-Jul-2015] ES Result Result Result Result Result EA055: Moisture Content ^ Moisture Content 103 C) 1 % EA200: AS Identification of Asbestos in Soils Asbestos Detected g/kg Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- EG005T: Total Metals by ICP-AES Arsenic mg/kg < <5 Cadmium mg/kg <1 <1 <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg <2 Zinc mg/kg <5 EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP066: Polychlorinated Biphenyls (PCB) ^ Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 <0.05 Aldrin mg/kg <0.05 <0.05 <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 Dieldrin mg/kg <0.05 <0.05 <0.05 < `-DDE mg/kg <0.05 <0.05 <0.05 <0.05 Endrin mg/kg <0.05 <0.05 <0.05 <0.05

373 Page : 4 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES DUP06 [15-Jul-2015] ES TRIP06 [15-Jul-2015] ES SB5A_0.5 [15-Jul-2015] ES Result Result Result Result Result EP068A: Organochlorine Pesticides (OC) - Continued beta-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 <0.05 < `-DDD mg/kg <0.05 <0.05 <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 <0.05 < `-DDT mg/kg <0.2 <0.2 <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 <0.05 Prothiofos mg/kg <0.05 <0.05 <0.05 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 <0.5 <0.5 <0.5 Acenaphthylene mg/kg <0.5 <0.5 <0.5 <0.5 Acenaphthene mg/kg <0.5 <0.5 <0.5 <0.5

374 Page : 5 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES DUP06 [15-Jul-2015] ES TRIP06 [15-Jul-2015] ES SB5A_0.5 [15-Jul-2015] ES Result Result Result Result Result EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued Fluorene mg/kg <0.5 <0.5 <0.5 <0.5 Phenanthrene mg/kg <0.5 <0.5 <0.5 <0.5 Anthracene mg/kg <0.5 <0.5 <0.5 <0.5 Fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 Pyrene mg/kg <0.5 <0.5 <0.5 <0.5 Benz(a)anthracene mg/kg <0.5 <0.5 <0.5 <0.5 Chrysene mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 <0.5 <0.5 <0.5 Dibenz(a.h)anthracene mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(g.h.i)perylene mg/kg <0.5 <0.5 <0.5 <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 <0.5 <0.5 <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 <50 C15 - C28 Fraction 100 mg/kg <100 <100 <100 <100 C29 - C36 Fraction 100 mg/kg <100 <100 <100 <100 ^ C10 - C36 Fraction (sum) 50 mg/kg <50 <50 <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 <10 <10 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 10 mg/kg <10 <10 <10 <10 (F1) >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 <50 >C16 - C34 Fraction 100 mg/kg <100 <100 <100 <100 >C34 - C40 Fraction 100 mg/kg <100 <100 <100 <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg <50 <50 <50 <50 ^ >C10 - C16 Fraction minus Naphthalene 50 mg/kg <50 <50 <50 <50 (F2) EP080: BTEXN Benzene mg/kg <0.2 <0.2 <0.2 <0.2

375 Page : 6 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EP080: BTEXN - Continued CAS Number sample ID sampling date / time LOR Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES DUP06 [15-Jul-2015] ES TRIP06 [15-Jul-2015] ES SB5A_0.5 [15-Jul-2015] ES Result Result Result Result Result Toluene mg/kg <0.5 <0.5 <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 <0.5 <0.5 ortho-xylene mg/kg <0.5 <0.5 <0.5 <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 <0.5 <0.5 Naphthalene mg/kg <1 <1 <1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

376 Page : 7 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB5A_1.0 [15-Jul-2015] ES SB8A_0.5 [15-Jul-2015] ES SB8B_0.5 [15-Jul-2015] ES SB5D_0.5 [15-Jul-2015] ES SB15C_0.5 [15-Jul-2015] ES Result Result Result Result Result EA055: Moisture Content ^ Moisture Content 103 C) 1 % EA200: AS Identification of Asbestos in Soils Asbestos Detected g/kg No No Asbestos Type Sample weight (dry) 0.01 g APPROVED IDENTIFIER: - -- C.OWLER C.OWLER EG005T: Total Metals by ICP-AES Arsenic mg/kg 8 <5 5 <5 <5 Cadmium mg/kg <1 <1 <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg Nickel mg/kg Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS Mercury mg/kg <0.1 <0.1 <0.1 <0.1 <0.1 EP066: Polychlorinated Biphenyls (PCB) ^ Total Polychlorinated biphenyls 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 EP068A: Organochlorine Pesticides (OC) alpha-bhc mg/kg <0.05 <0.05 <0.05 <0.05 Hexachlorobenzene (HCB) mg/kg <0.05 <0.05 <0.05 <0.05 beta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 gamma-bhc mg/kg <0.05 <0.05 <0.05 <0.05 delta-bhc mg/kg <0.05 <0.05 <0.05 <0.05 Heptachlor mg/kg <0.05 <0.05 <0.05 <0.05 Aldrin mg/kg <0.05 <0.05 <0.05 <0.05 Heptachlor epoxide mg/kg <0.05 <0.05 <0.05 <0.05 ^ Total Chlordane (sum) 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 trans-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 alpha-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 cis-chlordane mg/kg <0.05 <0.05 <0.05 <0.05 Dieldrin mg/kg <0.05 <0.05 <0.05 < `-DDE mg/kg <0.05 <0.05 <0.05 <0.05 Endrin mg/kg <0.05 <0.05 <0.05 <0.05

377 Page : 8 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB5A_1.0 [15-Jul-2015] ES SB8A_0.5 [15-Jul-2015] ES SB8B_0.5 [15-Jul-2015] ES SB5D_0.5 [15-Jul-2015] ES SB15C_0.5 [15-Jul-2015] ES Result Result Result Result Result EP068A: Organochlorine Pesticides (OC) - Continued beta-endosulfan mg/kg <0.05 <0.05 <0.05 <0.05 ^ Endosulfan (sum) mg/kg <0.05 <0.05 <0.05 < `-DDD mg/kg <0.05 <0.05 <0.05 <0.05 Endrin aldehyde mg/kg <0.05 <0.05 <0.05 <0.05 Endosulfan sulfate mg/kg <0.05 <0.05 <0.05 < `-DDT mg/kg <0.2 <0.2 <0.2 <0.2 Endrin ketone mg/kg <0.05 <0.05 <0.05 <0.05 Methoxychlor mg/kg <0.2 <0.2 <0.2 <0.2 ^ Sum of Aldrin + Dieldrin / mg/kg <0.05 <0.05 <0.05 <0.05 ^ Sum of DDD + DDE + DDT 0.05 mg/kg <0.05 <0.05 <0.05 <0.05 EP068B: Organophosphorus Pesticides (OP) Dichlorvos mg/kg <0.05 <0.05 <0.05 <0.05 Demeton-S-methyl mg/kg <0.05 <0.05 <0.05 <0.05 Monocrotophos mg/kg <0.2 <0.2 <0.2 <0.2 Dimethoate mg/kg <0.05 <0.05 <0.05 <0.05 Diazinon mg/kg <0.05 <0.05 <0.05 <0.05 Chlorpyrifos-methyl mg/kg <0.05 <0.05 <0.05 <0.05 Parathion-methyl mg/kg <0.2 <0.2 <0.2 <0.2 Malathion mg/kg <0.05 <0.05 <0.05 <0.05 Fenthion mg/kg <0.05 <0.05 <0.05 <0.05 Chlorpyrifos mg/kg <0.05 <0.05 <0.05 <0.05 Parathion mg/kg <0.2 <0.2 <0.2 <0.2 Pirimphos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 Chlorfenvinphos mg/kg <0.05 <0.05 <0.05 <0.05 Bromophos-ethyl mg/kg <0.05 <0.05 <0.05 <0.05 Fenamiphos mg/kg <0.05 <0.05 <0.05 <0.05 Prothiofos mg/kg <0.05 <0.05 <0.05 <0.05 Ethion mg/kg <0.05 <0.05 <0.05 <0.05 Carbophenothion mg/kg <0.05 <0.05 <0.05 <0.05 Azinphos Methyl mg/kg <0.05 <0.05 <0.05 <0.05 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene mg/kg <0.5 < <0.5 Acenaphthylene mg/kg <0.5 < <0.5 Acenaphthene mg/kg <0.5 < <0.5

378 Page : 9 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB5A_1.0 [15-Jul-2015] ES SB8A_0.5 [15-Jul-2015] ES SB8B_0.5 [15-Jul-2015] ES SB5D_0.5 [15-Jul-2015] ES SB15C_0.5 [15-Jul-2015] ES Result Result Result Result Result EP075(SIM)B: Polynuclear Aromatic Hydrocarbons - Continued Fluorene mg/kg <0.5 < <0.5 Phenanthrene mg/kg 0.5 < <0.5 Anthracene mg/kg <0.5 < <0.5 Fluoranthene mg/kg <0.5 Pyrene mg/kg <0.5 Benz(a)anthracene mg/kg <0.5 Chrysene mg/kg <0.5 Benzo(b+j)fluoranthene mg/kg <0.5 Benzo(k)fluoranthene mg/kg < <0.5 Benzo(a)pyrene mg/kg <0.5 Indeno(1.2.3.cd)pyrene mg/kg <0.5 Dibenz(a.h)anthracene mg/kg < <0.5 Benzo(g.h.i)perylene mg/kg <0.5 ^ Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 ^ Benzo(a)pyrene TEQ (half LOR) 0.5 mg/kg ^ Benzo(a)pyrene TEQ (LOR) 0.5 mg/kg EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction 10 mg/kg <10 <10 <10 <10 C10 - C14 Fraction 50 mg/kg <50 <50 <50 <50 C15 - C28 Fraction 100 mg/kg < <100 C29 - C36 Fraction 100 mg/kg < <100 ^ C10 - C36 Fraction (sum) 50 mg/kg < <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 10 mg/kg <10 <10 <10 <10 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 10 mg/kg <10 <10 <10 <10 (F1) >C10 - C16 Fraction >C10_C16 50 mg/kg <50 <50 <50 <50 >C16 - C34 Fraction 100 mg/kg < <100 >C34 - C40 Fraction 100 mg/kg < <100 ^ >C10 - C40 Fraction (sum) 50 mg/kg < <50 ^ >C10 - C16 Fraction minus Naphthalene 50 mg/kg <50 <50 <50 <50 (F2) EP080: BTEXN Benzene mg/kg <0.2 <0.2 <0.2 <0.2

379 Page : 10 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EP080: BTEXN - Continued CAS Number sample ID sampling date / time LOR Unit SB5A_1.0 [15-Jul-2015] ES SB8A_0.5 [15-Jul-2015] ES SB8B_0.5 [15-Jul-2015] ES SB5D_0.5 [15-Jul-2015] ES SB15C_0.5 [15-Jul-2015] ES Result Result Result Result Result Toluene mg/kg <0.5 <0.5 <0.5 <0.5 Ethylbenzene mg/kg <0.5 <0.5 <0.5 <0.5 meta- & para-xylene mg/kg <0.5 <0.5 <0.5 <0.5 ortho-xylene mg/kg <0.5 <0.5 <0.5 <0.5 ^ Sum of BTEX 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 ^ Total Xylenes mg/kg <0.5 <0.5 <0.5 <0.5 Naphthalene mg/kg <1 <1 1 <1 EP066S: PCB Surrogate Decachlorobiphenyl % EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % EP068T: Organophosphorus Pesticide Surrogate DEF % EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d % EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene %

380 Page : 11 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) Compound EP066: Polychlorinated Biphenyls (PCB) ^ Total Polychlorinated biphenyls CAS Number sample ID sampling date / time LOR 1 Unit µg/l RB_ [15-Jul-2015] ES TB_ [15-Jul-2015] ES Result Result Result Result Result <1 EP068A: Organochlorine Pesticides (OC) alpha-bhc µg/l <0.5 Hexachlorobenzene (HCB) µg/l <0.5 beta-bhc µg/l <0.5 gamma-bhc µg/l <0.5 delta-bhc µg/l <0.5 Heptachlor µg/l <0.5 Aldrin µg/l <0.5 Heptachlor epoxide µg/l <0.5 trans-chlordane µg/l <0.5 alpha-endosulfan µg/l <0.5 cis-chlordane µg/l <0.5 Dieldrin µg/l < `-DDE µg/l <0.5 Endrin µg/l <0.5 beta-endosulfan µg/l < `-DDD µg/l <0.5 Endrin aldehyde µg/l <0.5 Endosulfan sulfate µg/l < `-DDT µg/l <2.0 Endrin ketone µg/l <0.5 Methoxychlor µg/l <2.0 ^ Total Chlordane (sum) 0.5 µg/l <0.5 ^ Sum of DDD + DDE + DDT 0.5 µg/l <0.5 ^ Sum of Aldrin + Dieldrin / µg/l <0.5 EP068B: Organophosphorus Pesticides (OP) Dichlorvos µg/l <0.5 Demeton-S-methyl µg/l <0.5 Monocrotophos µg/l <2.0 Dimethoate µg/l <0.5 Diazinon µg/l <0.5 Chlorpyrifos-methyl µg/l <0.5 Parathion-methyl µg/l <2.0

381 Page : 12 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit RB_ [15-Jul-2015] ES TB_ [15-Jul-2015] ES Result Result Result Result Result EP068B: Organophosphorus Pesticides (OP) - Continued Malathion µg/l <0.5 Fenthion µg/l <0.5 Chlorpyrifos µg/l <0.5 Parathion µg/l <2.0 Pirimphos-ethyl µg/l <0.5 Chlorfenvinphos µg/l <0.5 Bromophos-ethyl µg/l <0.5 Fenamiphos µg/l <0.5 Prothiofos µg/l <0.5 Ethion µg/l <0.5 Carbophenothion µg/l <0.5 Azinphos Methyl µg/l <0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Naphthalene µg/l <1.0 Acenaphthylene µg/l <1.0 Acenaphthene µg/l <1.0 Fluorene µg/l <1.0 Phenanthrene µg/l <1.0 Anthracene µg/l <1.0 Fluoranthene µg/l <1.0 Pyrene µg/l <1.0 Benz(a)anthracene µg/l <1.0 Chrysene µg/l <1.0 Benzo(b+j)fluoranthene µg/l <1.0 Benzo(k)fluoranthene µg/l <1.0 Benzo(a)pyrene µg/l <0.5 Indeno(1.2.3.cd)pyrene µg/l <1.0 Dibenz(a.h)anthracene µg/l <1.0 Benzo(g.h.i)perylene µg/l <1.0 ^ Sum of polycyclic aromatic hydrocarbons 0.5 µg/l <0.5 ^ Benzo(a)pyrene TEQ (zero) 0.5 µg/l <0.5 EP080/071: Total Petroleum Hydrocarbons C6 - C9 Fraction C10 - C14 Fraction µg/l µg/l <20 <20 <50 <50

382 Page : 13 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit RB_ [15-Jul-2015] ES TB_ [15-Jul-2015] ES Result Result Result Result Result EP080/071: Total Petroleum Hydrocarbons - Continued C15 - C28 Fraction 100 µg/l <100 <100 C29 - C36 Fraction 50 µg/l <50 <50 ^ C10 - C36 Fraction (sum) 50 µg/l <50 <50 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions C6 - C10 Fraction C6_C10 20 µg/l <20 <20 ^ C6 - C10 Fraction minus BTEX C6_C10-BTEX 20 µg/l <20 <20 (F1) >C10 - C16 Fraction >C10_C µg/l <100 <100 >C16 - C34 Fraction 100 µg/l <100 <100 >C34 - C40 Fraction 100 µg/l <100 <100 ^ >C10 - C40 Fraction (sum) 100 µg/l <100 <100 ^ >C10 - C16 Fraction minus Naphthalene 100 µg/l <100 <100 (F2) EP080: BTEXN Benzene µg/l <1 <1 Toluene µg/l <2 <2 Ethylbenzene µg/l <2 <2 meta- & para-xylene µg/l <2 <2 ortho-xylene µg/l <2 <2 ^ Total Xylenes µg/l <2 <2 ^ Sum of BTEX 1 µg/l <1 <1 Naphthalene µg/l <5 <5 EP066S: PCB Surrogate Decachlorobiphenyl % 97.0 EP068S: Organochlorine Pesticide Surrogate Dibromo-DDE % 106 EP068T: Organophosphorus Pesticide Surrogate DEF % 117 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % 63.5 EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % 83.4

383 Page : 14 of 14 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: WATER (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit RB_ [15-Jul-2015] ES TB_ [15-Jul-2015] ES Result Result Result Result Result EP075(SIM)T: PAH Surrogates - Continued Anthracene-d % Terphenyl-d % 76.2 EP080S: TPH(V)/BTEX Surrogates 1.2-Dichloroethane-D % Toluene-D % Bromofluorobenzene % Analytical Results Descriptive Results Sub-Matrix: SOIL Method: Compound sample ID - sampling date / time EA200: AS Identification of Asbestos in Soils EA200: Description SB8A_0.5 - [15-Jul-2015] EA200: Description SB8B_0.5 - [15-Jul-2015] Analytical Results Pale grey-brown sandy soil with grey rocks Pale grey-brown sandy soil with grey rocks

384 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 15 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Sampler : Site : RHODES Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 17-Jul-2015 : 20-Jul-2015 Issue Date : 24-Jul-2015 No. of samples received : 31 No. of samples analysed : 12 NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics Christopher Owler Team Leader - Asbestos Newcastle - Asbestos Pabi Subba Senior Organic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics R I G H T S O L U T I O N S R I G H T P A R T N E R

385 Page : 2 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

386 Page : 3 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: ) ES ES Anonymous Anonymous EA055: Moisture Content (QC Lot: ) ES ES SB5A_1.0 Anonymous EG005T: Total Metals by ICP-AES (QC Lot: ) ES ES SB3A_0.3 Anonymous EG035T: Total Recoverable Mercury by FIMS (QC Lot: ) ES ES SB3A_0.3 Anonymous EP066: Polychlorinated Biphenyls (PCB) (QC Lot: ) ES SB3A_0.5 EP068A: Organochlorine Pesticides (OC) (QC Lot: ) ES Anonymous EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % No Limit EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % % - 50% EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg <5 < No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg <5 < No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG035T: Mercury mg/kg <0.1 < No Limit EG035T: Mercury mg/kg <0.1 < No Limit EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit

387 Page : 4 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068A: Organochlorine Pesticides (OC) (QC Lot: ) - continued ES ES Anonymous SB3A_0.5 EP068B: Organophosphorus Pesticides (OP) (QC Lot: ) ES Anonymous EP068: Dieldrin mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: 4.4`-DDD mg/kg <0.05 < No Limit EP068: 4.4`-DDE mg/kg <0.05 < No Limit EP068: Aldrin mg/kg <0.05 < No Limit EP068: alpha-bhc mg/kg <0.05 < No Limit EP068: alpha-endosulfan mg/kg <0.05 < No Limit EP068: beta-bhc mg/kg <0.05 < No Limit EP068: beta-endosulfan mg/kg <0.05 < No Limit EP068: cis-chlordane mg/kg <0.05 < No Limit EP068: delta-bhc mg/kg <0.05 < No Limit EP068: Dieldrin mg/kg <0.05 < No Limit EP068: Endosulfan sulfate mg/kg <0.05 < No Limit EP068: Endrin mg/kg <0.05 < No Limit EP068: Endrin aldehyde mg/kg <0.05 < No Limit EP068: Endrin ketone mg/kg <0.05 < No Limit EP068: gamma-bhc mg/kg <0.05 < No Limit EP068: Heptachlor mg/kg <0.05 < No Limit EP068: Heptachlor epoxide mg/kg <0.05 < No Limit EP068: Hexachlorobenzene (HCB) mg/kg <0.05 < No Limit EP068: trans-chlordane mg/kg <0.05 < No Limit EP068: 4.4`-DDT mg/kg <0.2 < No Limit EP068: Methoxychlor mg/kg <0.2 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit

388 Page : 5 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP068B: Organophosphorus Pesticides (OP) (QC Lot: ) - continued ES ES Anonymous SB3A_0.5 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) ES Anonymous EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP068: Azinphos Methyl mg/kg <0.05 < No Limit EP068: Bromophos-ethyl mg/kg <0.05 < No Limit EP068: Carbophenothion mg/kg <0.05 < No Limit EP068: Chlorfenvinphos mg/kg <0.05 < No Limit EP068: Chlorpyrifos mg/kg <0.05 < No Limit EP068: Chlorpyrifos-methyl mg/kg <0.05 < No Limit EP068: Demeton-S-methyl mg/kg <0.05 < No Limit EP068: Diazinon mg/kg <0.05 < No Limit EP068: Dichlorvos mg/kg <0.05 < No Limit EP068: Dimethoate mg/kg <0.05 < No Limit EP068: Ethion mg/kg <0.05 < No Limit EP068: Fenamiphos mg/kg <0.05 < No Limit EP068: Fenthion mg/kg <0.05 < No Limit EP068: Malathion mg/kg <0.05 < No Limit EP068: Pirimphos-ethyl mg/kg <0.05 < No Limit EP068: Prothiofos mg/kg <0.05 < No Limit EP068: Monocrotophos mg/kg <0.2 < No Limit EP068: Parathion mg/kg <0.2 < No Limit EP068: Parathion-methyl mg/kg <0.2 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit

389 Page : 6 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QC Lot: ) - continued ES ES Anonymous SB3A_0.5 EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES SB3A_0.5 Anonymous EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES Anonymous EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 < No Limit EP075(SIM): Acenaphthene mg/kg <0.5 < No Limit EP075(SIM): Acenaphthylene mg/kg <0.5 < No Limit EP075(SIM): Anthracene mg/kg <0.5 < No Limit EP075(SIM): Benz(a)anthracene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene mg/kg <0.5 < No Limit EP075(SIM): Benzo(a)pyrene TEQ (zero) 0.5 mg/kg <0.5 < No Limit EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 < No Limit EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Chrysene mg/kg <0.5 < No Limit EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 < No Limit EP075(SIM): Fluoranthene mg/kg <0.5 < No Limit EP075(SIM): Fluorene mg/kg <0.5 < No Limit EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 < No Limit EP075(SIM): Naphthalene mg/kg <0.5 < No Limit EP075(SIM): Phenanthrene mg/kg <0.5 < No Limit EP075(SIM): Pyrene mg/kg <0.5 < No Limit EP075(SIM): Sum of polycyclic aromatic hydrocarbons 0.5 mg/kg <0.5 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP080: C6 - C9 Fraction 10 mg/kg <10 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit

390 Page : 7 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) - continued ES ES Anonymous SB3A_0.5 EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES SB3A_0.5 Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous SB3A_0.5 EP080: BTEXN (QC Lot: ) ES ES Sub-Matrix: WATER SB3A_0.5 Anonymous EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP071: C15 - C28 Fraction 100 mg/kg <100 < No Limit EP071: C29 - C36 Fraction 100 mg/kg <100 < No Limit EP071: C10 - C14 Fraction 50 mg/kg <50 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP071: >C16 - C34 Fraction 100 mg/kg <100 < No Limit EP071: >C34 - C40 Fraction 100 mg/kg <100 < No Limit EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg <50 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 < No Limit EP080: Benzene mg/kg <0.2 < No Limit EP080: Ethylbenzene mg/kg <0.5 < No Limit EP080: meta- & para-xylene mg/kg <0.5 < No Limit EP080: ortho-xylene mg/kg <0.5 < No Limit EP080: Toluene mg/kg <0.5 < No Limit EP080: Naphthalene mg/kg <1 < No Limit Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080/071: Total Petroleum Hydrocarbons (QC Lot: ) ES ES Anonymous Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: ) ES ES Anonymous Anonymous EP080: BTEXN (QC Lot: ) ES Anonymous EP080: C6 - C9 Fraction 20 µg/l <20 < No Limit EP080: C6 - C9 Fraction 20 µg/l <20 < No Limit EP080: C6 - C10 Fraction C6_C10 20 µg/l <20 < No Limit EP080: C6 - C10 Fraction C6_C10 20 µg/l <20 < No Limit EP080: Benzene µg/l <1 < No Limit

391 Page : 8 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EP080: BTEXN (QC Lot: ) - continued ES ES Anonymous Anonymous EP080: Ethylbenzene µg/l <2 < No Limit EP080: meta- & para-xylene µg/l <2 < No Limit EP080: ortho-xylene µg/l <2 < No Limit EP080: Toluene µg/l <2 < No Limit EP080: Naphthalene µg/l <5 < No Limit EP080: Benzene µg/l <1 < No Limit EP080: Ethylbenzene µg/l <2 < No Limit EP080: meta- & para-xylene µg/l <2 < No Limit EP080: ortho-xylene µg/l <2 < No Limit EP080: Toluene µg/l <2 < No Limit EP080: Naphthalene µg/l <5 < No Limit

392 Page : 9 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005T: Total Metals by ICP-AES (QCLot: ) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg <5 32 mg/kg EG005T: Lead mg/kg <5 40 mg/kg EG005T: Nickel mg/kg <2 55 mg/kg EG005T: Zinc mg/kg < mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) EG035T: Mercury mg/kg < mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) EP066: Total Polychlorinated biphenyls 0.1 mg/kg <0.1 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) EP068: 4.4`-DDD mg/kg < mg/kg EP068: 4.4`-DDE mg/kg < mg/kg EP068: 4.4`-DDT mg/kg < mg/kg EP068: Aldrin mg/kg < mg/kg EP068: alpha-bhc mg/kg < mg/kg EP068: alpha-endosulfan mg/kg < mg/kg EP068: beta-bhc mg/kg < mg/kg EP068: beta-endosulfan mg/kg < mg/kg EP068: cis-chlordane mg/kg < mg/kg EP068: delta-bhc mg/kg < mg/kg EP068: Dieldrin mg/kg < mg/kg EP068: Endosulfan sulfate mg/kg < mg/kg EP068: Endrin mg/kg < mg/kg EP068: Endrin aldehyde mg/kg < mg/kg EP068: Endrin ketone mg/kg < mg/kg EP068: gamma-bhc mg/kg < mg/kg EP068: Heptachlor mg/kg < mg/kg EP068: Heptachlor epoxide mg/kg < mg/kg EP068: Hexachlorobenzene (HCB) mg/kg < mg/kg EP068: Methoxychlor mg/kg < mg/kg EP068: trans-chlordane mg/kg < mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: )

393 Page : 10 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068B: Organophosphorus Pesticides (OP) (QCLot: ) - continued EP068: Azinphos Methyl mg/kg < mg/kg EP068: Bromophos-ethyl mg/kg < mg/kg EP068: Carbophenothion mg/kg < mg/kg EP068: Chlorfenvinphos mg/kg < mg/kg EP068: Chlorpyrifos mg/kg < mg/kg EP068: Chlorpyrifos-methyl mg/kg < mg/kg EP068: Demeton-S-methyl mg/kg < mg/kg EP068: Diazinon mg/kg < mg/kg EP068: Dichlorvos mg/kg < mg/kg EP068: Dimethoate mg/kg < mg/kg EP068: Ethion mg/kg < mg/kg EP068: Fenamiphos mg/kg < mg/kg EP068: Fenthion mg/kg < mg/kg EP068: Malathion mg/kg < mg/kg EP068: Monocrotophos mg/kg < mg/kg EP068: Parathion mg/kg < mg/kg EP068: Parathion-methyl mg/kg < mg/kg EP068: Pirimphos-ethyl mg/kg < mg/kg EP068: Prothiofos mg/kg < mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Acenaphthene mg/kg <0.5 6 mg/kg EP075(SIM): Acenaphthylene mg/kg <0.5 6 mg/kg EP075(SIM): Anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benz(a)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(a)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(b+j)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(g.h.i)perylene mg/kg <0.5 6 mg/kg EP075(SIM): Benzo(k)fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Chrysene mg/kg <0.5 6 mg/kg EP075(SIM): Dibenz(a.h)anthracene mg/kg <0.5 6 mg/kg EP075(SIM): Fluoranthene mg/kg <0.5 6 mg/kg EP075(SIM): Fluorene mg/kg <0.5 6 mg/kg EP075(SIM): Indeno(1.2.3.cd)pyrene mg/kg <0.5 6 mg/kg EP075(SIM): Naphthalene mg/kg <0.5 6 mg/kg EP075(SIM): Phenanthrene mg/kg <0.5 6 mg/kg EP075(SIM): Pyrene mg/kg <0.5 6 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 10 mg/kg <10 26 mg/kg

394 Page : 11 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 mg/kg < mg/kg EP071: C15 - C28 Fraction 100 mg/kg < mg/kg EP071: C29 - C36 Fraction 100 mg/kg < mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 10 mg/kg <10 31 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C16 50 mg/kg < mg/kg EP071: >C16 - C34 Fraction 100 mg/kg < mg/kg EP071: >C34 - C40 Fraction 100 mg/kg < mg/kg EP080: BTEXN (QCLot: ) EP080: Benzene mg/kg <0.2 1 mg/kg EP080: Ethylbenzene mg/kg <0.5 1 mg/kg EP080: meta- & para-xylene mg/kg <0.5 2 mg/kg EP080: Naphthalene mg/kg <1 1 mg/kg EP080: ortho-xylene mg/kg <0.5 1 mg/kg EP080: Toluene mg/kg <0.5 1 mg/kg Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) EP066: Total Polychlorinated biphenyls 1 µg/l <1 10 µg/l EP068A: Organochlorine Pesticides (OC) (QCLot: ) EP068: 4.4`-DDD µg/l <0.5 5 µg/l EP068: 4.4`-DDE µg/l <0.5 5 µg/l EP068: 4.4`-DDT µg/l <2.0 5 µg/l EP068: Aldrin µg/l <0.5 5 µg/l EP068: alpha-bhc µg/l <0.5 5 µg/l EP068: alpha-endosulfan µg/l <0.5 5 µg/l EP068: beta-bhc µg/l <0.5 5 µg/l EP068: beta-endosulfan µg/l <0.5 5 µg/l EP068: cis-chlordane µg/l <0.5 5 µg/l EP068: delta-bhc µg/l <0.5 5 µg/l EP068: Dieldrin µg/l <0.5 5 µg/l EP068: Endosulfan sulfate µg/l <0.5 5 µg/l EP068: Endrin µg/l <0.5 5 µg/l EP068: Endrin aldehyde µg/l <0.5 5 µg/l EP068: Endrin ketone µg/l <0.5 5 µg/l

395 Page : 12 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP068A: Organochlorine Pesticides (OC) (QCLot: ) - continued EP068: gamma-bhc µg/l <0.5 5 µg/l EP068: Heptachlor µg/l <0.5 5 µg/l EP068: Heptachlor epoxide µg/l <0.5 5 µg/l EP068: Hexachlorobenzene (HCB) µg/l <0.5 5 µg/l EP068: Methoxychlor µg/l <2.0 5 µg/l EP068: trans-chlordane µg/l <0.5 5 µg/l EP068B: Organophosphorus Pesticides (OP) (QCLot: ) EP068: Azinphos Methyl µg/l <0.5 5 µg/l EP068: Bromophos-ethyl µg/l <0.5 5 µg/l EP068: Carbophenothion µg/l <0.5 5 µg/l EP068: Chlorfenvinphos µg/l <0.5 5 µg/l EP068: Chlorpyrifos µg/l <0.5 5 µg/l EP068: Chlorpyrifos-methyl µg/l <0.5 5 µg/l EP068: Demeton-S-methyl µg/l <0.5 5 µg/l EP068: Diazinon µg/l <0.5 5 µg/l EP068: Dichlorvos µg/l <0.5 5 µg/l EP068: Dimethoate µg/l <0.5 5 µg/l EP068: Ethion µg/l <0.5 5 µg/l EP068: Fenamiphos µg/l <0.5 5 µg/l EP068: Fenthion µg/l <0.5 5 µg/l EP068: Malathion µg/l <0.5 5 µg/l EP068: Monocrotophos µg/l <2.0 5 µg/l EP068: Parathion µg/l <2.0 5 µg/l EP068: Parathion-methyl µg/l <2.0 5 µg/l EP068: Pirimphos-ethyl µg/l <0.5 5 µg/l EP068: Prothiofos µg/l <0.5 5 µg/l EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Acenaphthene µg/l <1.0 5 µg/l EP075(SIM): Acenaphthylene µg/l <1.0 5 µg/l EP075(SIM): Anthracene µg/l <1.0 5 µg/l EP075(SIM): Benz(a)anthracene µg/l <1.0 5 µg/l EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l EP075(SIM): Benzo(b+j)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Benzo(g.h.i)perylene µg/l <1.0 5 µg/l EP075(SIM): Benzo(k)fluoranthene µg/l <1.0 5 µg/l EP075(SIM): Chrysene µg/l <1.0 5 µg/l EP075(SIM): Dibenz(a.h)anthracene µg/l <1.0 5 µg/l EP075(SIM): Fluoranthene µg/l <1.0 5 µg/l

396 Page : 13 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) - continued EP075(SIM): Fluorene µg/l <1.0 5 µg/l EP075(SIM): Indeno(1.2.3.cd)pyrene µg/l <1.0 5 µg/l EP075(SIM): Naphthalene µg/l <1.0 5 µg/l EP075(SIM): Phenanthrene µg/l <1.0 5 µg/l EP075(SIM): Pyrene µg/l <1.0 5 µg/l EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP080: C6 - C9 Fraction 20 µg/l < µg/l EP080/071: Total Petroleum Hydrocarbons (QCLot: ) EP071: C10 - C14 Fraction 50 µg/l < µg/l EP071: C15 - C28 Fraction 100 µg/l < µg/l EP071: C29 - C36 Fraction 50 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP080: C6 - C10 Fraction C6_C10 20 µg/l < µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) EP071: >C10 - C16 Fraction >C10_C µg/l < µg/l EP071: >C16 - C34 Fraction 100 µg/l < µg/l EP071: >C34 - C40 Fraction 100 µg/l < µg/l EP080: BTEXN (QCLot: ) EP080: Benzene µg/l <1 10 µg/l EP080: Ethylbenzene µg/l <2 10 µg/l EP080: meta- & para-xylene µg/l <2 10 µg/l EP080: Naphthalene µg/l <5 10 µg/l EP080: ortho-xylene µg/l <2 10 µg/l EP080: Toluene µg/l <2 10 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES SB3A_0.5 EG005T: Arsenic mg/kg EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg MS Low High

397 Page : 14 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES SB3A_0.5 EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg EG035T: Total Recoverable Mercury by FIMS (QCLot: ) ES SB3A_0.3 EG035T: Mercury mg/kg EP066: Polychlorinated Biphenyls (PCB) (QCLot: ) ES SB3A_0.5 EP066: Total Polychlorinated biphenyls 1 mg/kg EP068A: Organochlorine Pesticides (OC) (QCLot: ) ES SB3A_0.5 EP068: 4.4`-DDT mg/kg EP068: Aldrin mg/kg EP068: Dieldrin mg/kg EP068: Endrin mg/kg EP068: gamma-bhc mg/kg EP068: Heptachlor mg/kg EP068B: Organophosphorus Pesticides (OP) (QCLot: ) ES SB3A_0.5 EP068: Bromophos-ethyl mg/kg EP068: Chlorpyrifos-methyl mg/kg EP068: Diazinon mg/kg EP068: Pirimphos-ethyl mg/kg EP068: Prothiofos mg/kg EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) ES SB3A_0.5 EP075(SIM): Acenaphthene mg/kg EP075(SIM): Pyrene mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES Anonymous EP080: C6 - C9 Fraction 32.5 mg/kg EP080/071: Total Petroleum Hydrocarbons (QCLot: ) ES SB3A_0.5 EP071: C10 - C14 Fraction 523 mg/kg EP071: C15 - C28 Fraction 2319 mg/kg EP071: C29 - C36 Fraction 1714 mg/kg EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES SB3A_0.5 EP080: BTEXN (QCLot: ) EP080: C6 - C10 Fraction C6_C mg/kg EP071: >C10 - C16 Fraction >C10_C mg/kg EP071: >C16 - C34 Fraction 3223 mg/kg EP071: >C34 - C40 Fraction 1058 mg/kg MS Low High

398 Page : 15 of 15 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EP080: BTEXN (QCLot: ) - continued Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP080: Benzene mg/kg EP080: Ethylbenzene mg/kg EP080: meta- & para-xylene mg/kg EP080: Naphthalene mg/kg EP080: ortho-xylene mg/kg EP080: Toluene mg/kg Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number EP080/071: Total Petroleum Hydrocarbons (QCLot: ) Spike Concentration MS Matrix Spike (MS) Report Low SpikeRecovery(%) Recovery Limits (%) ES Anonymous EP080: C6 - C9 Fraction 325 µg/l EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QCLot: ) ES Anonymous EP080: BTEXN (QCLot: ) EP080: C6 - C10 Fraction C6_C µg/l ES Anonymous EP080: Benzene µg/l EP080: Ethylbenzene µg/l EP080: meta- & para-xylene µg/l EP080: Naphthalene µg/l EP080: ortho-xylene µg/l EP080: Toluene µg/l MS Low High High

399 True Environmental QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 8 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : A AUSGRID CABLE ROUTE Date Samples Received : 17-Jul-2015 Site : RHODES Issue Date : 24-Jul-2015 Sampler : No. of samples received : 31 Order number : No. of samples analysed : 12 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. NO Matrix Spike outliers occur. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples Quality Control Sample Frequency Outliers exist - please see following pages for full details. R I G H T S O L U T I O N S R I G H T P A R T N E R

400 Page : 2 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Outliers : Frequency of Quality Control Samples Matrix: WATER Quality Control Sample Type Method Count Rate (%) QC Regular Actual Expected Laboratory Duplicates (DUP) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction Matrix Spikes (MS) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction Analysis Holding Time Compliance Quality Control Specification This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB3A_0.3, DUP06, SB5A_0.5, SB8A_0.5, SB5D_0.5, SB3A_0.5, TRIP06, SB5A_1.0, SB8B_0.5, SB15C_ Jul Jul Jul-2015 EA200: AS Identification of Asbestos in Soils Snap Lock Bag - Subsampled by ALS (EA200) SB8A_0.5, SB8B_ Jul Jul Jan-2016 EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) SB3A_0.3, DUP06, SB5A_0.5, SB8A_0.5, SB5D_0.5, SB3A_0.5, TRIP06, SB5A_1.0, SB8B_0.5, SB15C_ Jul Jul Jan Jul Jan-2016

401 Page : 3 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG035T: Total Recoverable Mercury by FIMS Soil Glass Jar - Unpreserved (EG035T) SB3A_0.3, DUP06, SB5A_0.5, SB8A_0.5, SB5D_0.5, EP066: Polychlorinated Biphenyls (PCB) Soil Glass Jar - Unpreserved (EP066) SB3A_0.5, TRIP06, SB8A_0.5, SB5D_0.5, EP068A: Organochlorine Pesticides (OC) Soil Glass Jar - Unpreserved (EP068) SB3A_0.5, TRIP06, SB8A_0.5, SB5D_0.5, EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP071) SB3A_0.5, TRIP06, SB8A_0.5, SB5D_0.5, EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Soil Glass Jar - Unpreserved (EP075(SIM)) SB3A_0.5, TRIP06, SB8A_0.5, SB5D_0.5, EP080/071: Total Petroleum Hydrocarbons Soil Glass Jar - Unpreserved (EP080) SB3A_0.5, TRIP06, SB8A_0.5, SB5D_0.5, SB3A_0.5, TRIP06, SB5A_1.0, SB8B_0.5, SB15C_0.5 DUP06, SB5A_0.5, SB8B_0.5, SB15C_0.5 DUP06, SB5A_0.5, SB8B_0.5, SB15C_0.5 DUP06, SB5A_0.5, SB8B_0.5, SB15C_0.5 DUP06, SB5A_0.5, SB8B_0.5, SB15C_0.5 DUP06, SB5A_0.5, SB8B_0.5, SB15C_ Jul Jul Aug Jul Aug Jul Jul Jul Jul Aug Jul Jul Jul Jul Aug Jul Jul Jul Jul Aug Jul Jul Jul Jul Aug Jul Jul Jul Jul Jul-2015 Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation

402 Page : 4 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP066: Polychlorinated Biphenyls (PCB) Amber Glass Bottle - Unpreserved (EP066) RB_ EP068A: Organochlorine Pesticides (OC) Amber Glass Bottle - Unpreserved (EP068) RB_ Jul Jul Jul Jul Aug Jul Jul Jul Jul Aug-2015 EP080/071: Total Petroleum Hydrocarbons Amber Glass Bottle - Unpreserved (EP071) RB_160715, TB_ Jul Jul Jul Aug-2015 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) RB_ Jul Jul Jul Jul Jul Aug-2015 EP080/071: Total Petroleum Hydrocarbons Amber VOC Vial - Sulfuric Acid (EP080) RB_160715, TB_ Jul Jul Jul Jul Jul-2015

403 Page : 5 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Moisture Content PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) PAH/Phenols (SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) Total Mercury by FIMS Total Metals by ICP-AES TRH - Semivolatile Fraction TRH Volatiles/BTEX Method EA EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 EP075(SIM) EP068 EP066 EG035T EG005T EP071 EP080 Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification Matrix: WATER Quality Control Sample Type Analytical Methods Method Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Count Rate (%) Quality Control Specification QC Regular Actual Expected Evaluation

404 Page : 6 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction TRH Volatiles/BTEX Laboratory Control Samples (LCS) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction TRH Volatiles/BTEX Method Blanks (MB) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction TRH Volatiles/BTEX Matrix Spikes (MS) PAH/Phenols (GC/MS - SIM) Pesticides by GCMS Polychlorinated Biphenyls (PCB) TRH - Semivolatile Fraction TRH Volatiles/BTEX Method EP075(SIM) EP068 EP066 EP071 EP080 EP075(SIM) EP068 EP066 EP071 EP080 EP075(SIM) EP068 EP066 EP071 EP080 EP075(SIM) EP068 EP066 EP071 EP080 Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Count Rate (%) Quality Control Specification QC Regular Actual Expected Evaluation û û û û û û û û

405 Page : 7 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL Asbestos Identification in Soils EA200 SOIL Total Metals by ICP-AES EG005T SOIL Total Mercury by FIMS EG035T SOIL Polychlorinated Biphenyls (PCB) EP066 SOIL Pesticides by GCMS EP068 SOIL TRH - Semivolatile Fraction EP071 SOIL PAH/Phenols (SIM) EP075(SIM) SOIL TRH Volatiles/BTEX EP080 SOIL Polychlorinated Biphenyls (PCB) EP066 WATER Pesticides by GCMS EP068 WATER TRH - Semivolatile Fraction EP071 WATER PAH/Phenols (GC/MS - SIM) EP075(SIM) WATER Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). AS Method for the qualitative identification of asbestos in bulk samples Analysis by Polarised Light Microscopy including dispersion staining In house: Referenced to APHA 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to AS 3550, APHA 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 504) (USEPA SW B) Extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This technique is compliant with NEPM (2013) Schedule B(3) (Method 504,505) (USEPA SW A) Sample extracts are analysed by Capillary GC/FID and quantified against alkane standards over the range C10 - C40. (USEPA SW B) Extracts are analysed by Capillary GC/MS in Selective Ion Mode (SIM) and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) (Method 502 and 507) (USEPA SW B) Extracts are analysed by Purge and Trap, Capillary GC/MS. Quantification is by comparison against an established 5 point calibration curve. USEPA SW D Sample extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW A The sample extract is analysed by Capillary GC/FID and quantification is by comparison against an established 5 point calibration curve of n-alkane standards. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3)

406 Page : 8 of 8 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Methods Method Matrix TRH Volatiles/BTEX EP080 WATER Preparation Methods Method Matrix Methanolic Extraction of Soils for Purge * ORG16 SOIL and Trap Tumbler Extraction of Solids ORG17 SOIL Method Descriptions USEPA SW B Water samples are directly purged prior to analysis by Capillary GC/MS and quantification is by comparison against an established 5 point calibration curve. Alternatively, a sample is equilibrated in a headspace vial and a portion of the headspace determined by GCMS analysis. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) Method Descriptions (USEPA SW A) 5g of solid is shaken with surrogate and 10mL methanol prior to analysis by Purge and Trap - GC/MS. In-house, Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1 DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the desired volume for analysis.

407 Work Order Environmental SAMPLE RECEIPT NOTIFICATION (SRN) : ES Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield SYDNEY NSW, AUSTRALIA 2001 NSW Australia ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE Page : 1 of 2 Order number : Quote number : ES2014PARBRINSW0202 (EN/008/14) C-O-C number : QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement Site : RHODES Sampler : Dates Date Samples Received : 27-Jul :00 AM Issue Date : 28-Jul-2015 Requested Due 03-Aug-2015 Scheduled Reporting Date : Date Delivery Details : 03-Aug-2015 Mode of Delivery : Samples On Hand Security Seal : Not Available No. of coolers/boxes : 0 Temperature : 4.1'C Receipt Detail : No. of samples received / analysed : 8 / 8 General Comments This report contains the following information: - Sample Container(s)/Preservation Non-Compliances - Summary of Sample(s) and Requested Analysis - Proactive Holding Time Report - Requested Deliverables THIS IS A REBATCH OF ES Please refer to the Proactive Holding Time Report table below which summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. The absence of this summary table indicates that all samples have been received within the recommended holding times for the analysis requested. Please direct any queries you have regarding this work order to the above ALS laboratory contact. Analytical work for this work order will be conducted at ALS Sydney. Sample Disposal - Aqueous (14 days), Solid (60 days) from date of completion of work order. R I G H T S O L U T I O N S R I G H T P A R T N E R

408 Issue Date : 28-Jul-2015 Page : 2 of 2 Work Order : ES Amendment 0 Sample Container(s)/Preservation Non-Compliances All comparisons are made against pretreatment/preservation AS, APHA, USEPA standards. No sample container / preservation non-compliance exist. Summary of Sample(s) and Requested Analysis Some items described below may be part of a laboratory process necessary for the execution of client requested tasks. Packages may contain additional analyses, such as the determination of moisture content and preparation tasks, that are included in the package. Matrix: SOIL Laboratory sample ID sampling date / time sample ID SOIL - EA Moisture Content SOIL - EG005C Leachable Metals by ICPAES SOIL - EP075 SIM PAH only SIM - PAH only SOIL - S-01 7 Metals (incl. Digestion) ES [ 16-Jul-2015 ] SB8A_0.5 ES [ 16-Jul-2015 ] SB8B_0.5 ES [ 16-Jul-2015 ] SB15D_0.5 ES [ 16-Jul-2015 ] SB3A_0.1 ES [ 16-Jul-2015 ] SB3A_0.7 ES [ 16-Jul-2015 ] SB3A_1.0 ES [ 16-Jul-2015 ] SB5A_0.1 ES [ 16-Jul-2015 ] SB5A_1.5 SOIL - TCLP TCLP Leach Proactive Holding Time Report The following table summarises breaches of recommended holding times that have occurred prior to samples/instructions being received at the laboratory. Matrix: WATER Method Sample ID(s) Container EP075(SIM): PAH/Phenols (GC/MS - SIM) Due for extraction Due for analysis Evaluation: û = Holding time breach ; = Within holding time. Samples Received Date Evaluation Instructions Received Date Evaluation SB15D_0.5 Amber Glass Bottle - Unpreserve 23-Jul Sep Jul-2015 û SB8A_0.5 Amber Glass Bottle - Unpreserve 23-Jul Sep Jul-2015 û SB8B_0.5 Amber Glass Bottle - Unpreserve 23-Jul Sep Jul-2015 û Requested Deliverables ACCOUNTS PAYABLE - A4 - AU Tax Invoice (INV) accountspayable@pb.com.au IMOGEN POWELL - *AU Certificate of Analysis - NATA (COA) ipowell@pb.com.au - *AU Interpretive QC Report - DEFAULT (Anon QCI Rep) (QCI) ipowell@pb.com.au - *AU QC Report - DEFAULT (Anon QC Rep) - NATA (QC) ipowell@pb.com.au - A4 - AU Sample Receipt Notification - Environmental HT (SRN) ipowell@pb.com.au - A4 - AU Tax Invoice (INV) ipowell@pb.com.au - Chain of Custody (CoC) (COC) ipowell@pb.com.au - EDI Format - ENMRG (ENMRG) ipowell@pb.com.au - EDI Format - ESDAT (ESDAT) ipowell@pb.com.au

409 Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : Date Samples Received : 27-Jul :00 C-O-C number : Date Analysis Commenced : 29-Jul-2015 Sampler : Issue Date : 03-Aug :54 Site : RHODES No. of samples received : 8 Quote number : No. of samples analysed : 8 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Pabi Subba Senior Organic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics Raymond Commodore Instrument Chemist Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

410 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests. Benzo(a)pyrene Toxicity Equivalent Quotient (TEQ) is the sum total of the concentration of the eight carcinogenic PAHs multiplied by their Toxicity Equivalence Factor (TEF) relative to Benzo(a)pyrene. TEF values are provided in brackets as follows: Benz(a)anthracene (0.1), Chrysene (0.01), Benzo(b+j) & Benzo(k)fluoranthene (0.1), Benzo(a)pyrene (1.0), Indeno(1.2.3.cd)pyrene (0.1), Dibenz(a.h)anthracene (1.0), Benzo(g.h.i)perylene (0.01). Less than LOR results for 'TEQ Zero' are treated as zero.

411 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EA055: Moisture Content ^ Moisture Content 103 C) CAS Number sample ID sampling date / time LOR 1 Unit % SB8A_0.5 [16-Jul-2015] ES SB8B_0.5 [16-Jul-2015] ES SB15D_0.5 [16-Jul-2015] ES SB3A_0.1 [16-Jul-2015] ES SB3A_0.7 [16-Jul-2015] ES Result Result Result Result Result EG005T: Total Metals by ICP-AES Arsenic mg/kg <5 6 Cadmium mg/kg <1 <1 Chromium mg/kg 9 15 Copper mg/kg Lead mg/kg 6 17 Nickel mg/kg 27 6 Zinc mg/kg EN33: TCLP Leach Initial ph After HCl ph Extraction Fluid Number Final ph ph Unit ph Unit - ph Unit

412 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound CAS Number sample ID sampling date / time LOR Unit SB3A_1.0 [16-Jul-2015] ES SB5A_0.1 [16-Jul-2015] ES SB5A_1.5 [16-Jul-2015] ES Result Result Result Result Result EA055: Moisture Content ^ Moisture Content 103 C) 1 % EG005T: Total Metals by ICP-AES Arsenic mg/kg <5 <5 <5 Cadmium mg/kg <1 <1 <1 Chromium mg/kg Copper mg/kg Lead mg/kg 17 <5 18 Nickel mg/kg 2 6 <2 Zinc mg/kg EN33: TCLP Leach Initial ph After HCl ph Extraction Fluid Number Final ph ph Unit ph Unit - ph Unit

413 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: TCLP LEACHATE (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit SB8A_0.5 [16-Jul-2015] ES SB8B_0.5 [16-Jul-2015] ES SB15D_0.5 [16-Jul-2015] ES Result Result Result Result Result EG005C: Leachable Metals by ICPAES Nickel mg/l 0.1 <0.1 EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Benzo(a)pyrene µg/l <0.5 <0.5 <0.5 EP075(SIM)S: Phenolic Compound Surrogates Phenol-d % Chlorophenol-D % Tribromophenol % EP075(SIM)T: PAH Surrogates 2-Fluorobiphenyl % Anthracene-d % Terphenyl-d %

414 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Sampler : Site : RHODES Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 27-Jul-2015 : 29-Jul-2015 Issue Date : 03-Aug-2015 No. of samples received : 8 No. of samples analysed : 8 NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Pabi Subba Senior Organic Chemist Sydney Inorganics Pabi Subba Senior Organic Chemist Sydney Organics Raymond Commodore Instrument Chemist Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

415 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

416 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EA055: Moisture Content (QC Lot: ) ES ES Anonymous Anonymous EA055: Moisture Content (QC Lot: ) ES ES Anonymous Anonymous EG005T: Total Metals by ICP-AES (QC Lot: ) EB ES Sub-Matrix: WATER Anonymous Anonymous EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % % - 20% EA : Moisture Content 103 C) 1 % % - 50% EA : Moisture Content 103 C) 1 % % - 50% EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg <2 < No Limit EG005T: Arsenic mg/kg <5 < No Limit EG005T: Copper mg/kg % - 50% EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg No Limit EG005T: Cadmium mg/kg <1 < No Limit EG005T: Chromium mg/kg No Limit EG005T: Nickel mg/kg No Limit EG005T: Arsenic mg/kg No Limit EG005T: Copper mg/kg No Limit EG005T: Lead mg/kg No Limit EG005T: Zinc mg/kg % - 50% Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EG005C: Leachable Metals by ICPAES (QC Lot: ) ES SB8A_0.5 EG005C: Nickel mg/l No Limit

417 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005T: Total Metals by ICP-AES (QCLot: ) EG005T: Arsenic mg/kg < mg/kg EG005T: Cadmium mg/kg < mg/kg EG005T: Chromium mg/kg < mg/kg EG005T: Copper mg/kg <5 32 mg/kg EG005T: Lead mg/kg <5 40 mg/kg EG005T: Nickel mg/kg <2 55 mg/kg EG005T: Zinc mg/kg < mg/kg EN33: TCLP Leach (QCLot: ) EN33a: After HCl ph 0.1 ph Unit 1.0 EN33a: Final ph 0.1 ph Unit 1.0 EN33a: Initial ph 0.1 ph Unit 1.0 Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005C: Leachable Metals by ICPAES (QCLot: ) EG005C: Nickel mg/l < mg/l EP075(SIM)B: Polynuclear Aromatic Hydrocarbons (QCLot: ) EP075(SIM): Benzo(a)pyrene µg/l <0.5 5 µg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: SOIL Laboratory sample ID sample ID Method: Compound CAS Number EG005T: Total Metals by ICP-AES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) EB Anonymous EG005T: Arsenic mg/kg EG005T: Cadmium mg/kg EG005T: Chromium mg/kg EG005T: Copper mg/kg EG005T: Lead mg/kg EG005T: Nickel mg/kg EG005T: Zinc mg/kg MS Low High

418 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number EG005C: Leachable Metals by ICPAES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES SB8B_0.5 EG005C: Nickel mg/l MS Low High

419 True Environmental QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 5 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : A AUSGRID CABLE ROUTE Date Samples Received : 27-Jul-2015 Site : RHODES Issue Date : 03-Aug-2015 Sampler : No. of samples received : 8 Order number : No. of samples analysed : 8 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. NO Matrix Spike outliers occur. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples Quality Control Sample Frequency Outliers exist - please see following pages for full details. R I G H T S O L U T I O N S R I G H T P A R T N E R

420 Page : 2 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Outliers : Frequency of Quality Control Samples Matrix: SOIL Quality Control Sample Type Count Rate (%) Method QC Regular Actual Expected Method Blanks (MB) TCLP for Non & Semivolatile Analytes Quality Control Specification Matrix: WATER Quality Control Sample Type Method Count Rate (%) QC Regular Actual Expected Laboratory Duplicates (DUP) PAH/Phenols (GC/MS - SIM) Matrix Spikes (MS) PAH/Phenols (GC/MS - SIM) Analysis Holding Time Compliance Quality Control Specification This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: SOIL Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EA055: Moisture Content Soil Glass Jar - Unpreserved (EA ) SB3A_0.1, SB3A_1.0, SB5A_1.5 EG005T: Total Metals by ICP-AES Soil Glass Jar - Unpreserved (EG005T) SB3A_0.1, SB3A_1.0, SB5A_1.5 SB3A_0.7, SB5A_0.1, SB3A_0.7, SB5A_0.1, 16-Jul Jul Jul Jul Jul Jan Jul Jan-2016 Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG005C: Leachable Metals by ICPAES Clear Plastic Bottle - Nitric Acid; Unfiltered (EG005C) SB8A_0.5, SB8B_ Jul Jan Jul Jan Jul-2015

421 Page : 3 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EP075(SIM)B: Polynuclear Aromatic Hydrocarbons Amber Glass Bottle - Unpreserved (EP075(SIM)) SB8A_0.5, SB15D_0.5 SB8B_0.5, 30-Jul Jul Aug Jul Sep-2015

422 Page : 4 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Moisture Content Total Metals by ICP-AES Laboratory Control Samples (LCS) Total Metals by ICP-AES Method Blanks (MB) TCLP for Non & Semivolatile Analytes Total Metals by ICP-AES Matrix Spikes (MS) Total Metals by ICP-AES Method EA EG005T EG005T EN33a EG005T EG005T Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation û Quality Control Specification Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Laboratory Control Samples (LCS) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Method Blanks (MB) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Matrix Spikes (MS) Leachable Metals by ICPAES PAH/Phenols (GC/MS - SIM) Method EG005C EP075(SIM) EG005C EP075(SIM) EG005C EP075(SIM) EG005C EP075(SIM) Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Count Rate (%) Quality Control Specification QC Regular Actual Expected Evaluation û û

423 Page : 5 of 5 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Moisture Content EA SOIL Leachable Metals by ICPAES EG005C SOIL Total Metals by ICP-AES EG005T SOIL PAH/Phenols (GC/MS - SIM) EP075(SIM) SOIL Method Descriptions In-house. A gravimetric procedure based on weight loss over a 12 hour drying period at degrees C. This method is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time). In house: referenced to APHA 3120; USEPA SW : The ICPAES technique ionises leachate sample atoms emitting a characteristic spectrum. This spectrum is then compared against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3) In house: Referenced to APHA 3120; USEPA SW Metals are determined following an appropriate acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix matched standards. This method is compliant with NEPM (2013) Schedule B(3) USEPA SW D Sample extracts are analysed by Capillary GC/MS in SIM Mode and quantification is by comparison against an established 5 point calibration curve. This method is compliant with NEPM (2013) Schedule B(3) Preparation Methods Method Matrix TCLP for Non & Semivolatile Analytes EN33a SOIL Method Descriptions In house QWI-EN/33 referenced to USEPA SW : The TCLP procedure is designed to determine the mobility of both organic and inorganic analytes present in wastes. The standard TCLP leach is for non-volatile and Semivolatile test parameters.

424 ALS Environmental Sydney Woodpark Road Smithfield NSW Australia 2164 T: F: ABN: August 2015 PB/WSP Level 27, 680 George Street, Sydney, 2164 Attention: Imogen Powell Dear Imogen, RE: NICKEL RESULT QUERY FOR WORK ORDER ES Following on from a query regarding the Nickel results reported for samples submitted under work order ES , please find below a summary of results following the re-digestion and re-analysis of all samples in triplicate. Sub-Matrix SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL Sample Name SB3A_0.3 SB3A_0.3 SB3A_0.3 SB3A_0.3 SB3A_0.5 SB3A_0.5 SB3A_0.5 SB3A_0.5 Depth Type Original Result Reported Repeat Repeat Repeat Original Result Reported Repeat Repeat Repeat Analyte 15/07/ /07/ /07/ /07/ /07/ /07/ /07/ /07/2015 Rep. ES ES ES ES ES ES ES Method Units LOR EG005T Nickel mg/kg ES R I G H T S O L U T I O N S R I G H T P A R T N E R

425 Sub-Matrix SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL Sample Name SB5A_0.5 SB5A_0.5 SB5A_0.5 SB5A_0.5 SB5A_1.0 SB5A_1.0 SB5A_1.0 SB5A_1.0 Depth Type Original Result Reported Repeat Repeat Repeat Original Result Reported Repeat Repeat Repeat Analyte 15/07/ /07/ /07/ /07/ /07/ /07/ /07/ /07/2015 Rep. ES ES ES ES ES ES ES Method Units LOR EG005T Nickel mg/kg 2 < ES Based on this data, all results have been confirmed by re-analysis. If you require any further information, please feel free to contact me via (loren.schiavon@alsglobal.com) or via phone (02) Yours sincerely, Loren Schiavon Services Coordinator Environmental Division Direct: Document Name Page 2 of 2

426 Environmental CERTIFICATE OF ANALYSIS Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : Date Samples Received : 04-Aug :35 C-O-C number : Date Analysis Commenced : 04-Aug-2015 Sampler : Issue Date : 05-Aug :35 Site : RHODES No. of samples received : 4 Quote number : No. of samples analysed : 4 This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Certificate of Analysis contains the following information: General Comments Analytical Results NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

427 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference. When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes. Key : CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting ^ = This result is computed from individual analyte detections at or above the level of reporting ø = ALS is not NATA accredited for these tests.

428 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: SOIL (Matrix: SOIL) Compound EN33: TCLP Leach Initial ph After HCl ph Extraction Fluid Number Final ph CAS Number sample ID sampling date / time LOR Unit ph Unit ph Unit - ph Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.3 DUPLICATE LEACHATE [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES SB3A_0.5 DUPLICATE LEACHATE [15-Jul-2015] ES Result Result Result Result Result

429 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Analytical Results Sub-Matrix: TCLP LEACHATE (Matrix: WATER) Compound CAS Number sample ID sampling date / time LOR Unit SB3A_0.3 [15-Jul-2015] ES SB3A_0.3 DUPLICATE LEACHATE [15-Jul-2015] ES SB3A_0.5 [15-Jul-2015] ES SB3A_0.5 DUPLICATE LEACHATE [15-Jul-2015] ES Result Result Result Result Result EG005C: Leachable Metals by ICPAES Nickel mg/l <0.1 <0.1 <0.1 <0.1

430 True False Environmental QUALITY CONTROL REPORT Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Contact : Address : GPO BOX 5394 Address : Woodpark Road Smithfield NSW Australia 2164 SYDNEY NSW, AUSTRALIA ipowell@pb.com.au Telephone : Telephone : Facsimile : Facsimile : Project : A AUSGRID CABLE ROUTE QC Level : Order number : C-O-C number : Sampler : Site : RHODES Quote number : This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This Quality Control Report contains the following information: Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits Method Blank (MB) and Laboratory Control Spike (LCS) Report; Recovery and Acceptance Limits Matrix Spike (MS) Report; Recovery and Acceptance Limits Date Samples Received Date Analysis Commenced : 04-Aug-2015 : 04-Aug-2015 Issue Date : 05-Aug-2015 No. of samples received : 4 No. of samples analysed : 4 NATA Accredited Laboratory 825 Accredited for compliance with ISO/IEC Signatories This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with procedures specified in 21 CFR Part 11. Signatories Position Accreditation Category Celine Conceicao Senior Spectroscopist Sydney Inorganics R I G H T S O L U T I O N S R I G H T P A R T N E R

431 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE General Comments The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. Where moisture determination has been performed, results are reported on a dry weight basis. Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from standard LOR, this may be due to high Key : Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society. LOR = Limit of reporting RPD = Relative Percentage Difference # = Indicates failed QC

432 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Laboratory Duplicate (DUP) Report The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI-EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR: No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:0% - 20%. Sub-Matrix: WATER Laboratory Duplicate (DUP) Report Laboratory sample ID sample ID Method: Compound CAS Number LOR Unit Original Result Duplicate Result RPD (%) Recovery Limits (%) EG005C: Leachable Metals by ICPAES (QC Lot: ) ES ES Anonymous Anonymous EG005C: Nickel mg/l <0.1 < No Limit EG005C: Nickel mg/l <0.1 < No Limit

433 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Method Blank (MB) and Laboratory Control Spike (LCS) Report The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS. Sub-Matrix: SOIL Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EN33: TCLP Leach (QCLot: ) EN33a: After HCl ph 0.1 ph Unit 1.0 EN33a: Final ph 0.1 ph Unit 1.0 EN33a: Initial ph 0.1 ph Unit 1.0 Sub-Matrix: WATER Method: Compound CAS Number LOR Unit Method Blank (MB) Report Laboratory Control Spike (LCS) Report Spike Spike Recovery (%) Recovery Limits (%) Result Concentration LCS Low High EG005C: Leachable Metals by ICPAES (QCLot: ) EG005C: Nickel mg/l < mg/l Matrix Spike (MS) Report The quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference. Sub-Matrix: WATER Laboratory sample ID sample ID Method: Compound CAS Number EG005C: Leachable Metals by ICPAES (QCLot: ) Spike Concentration Matrix Spike (MS) Report SpikeRecovery(%) Recovery Limits (%) ES Anonymous EG005C: Nickel mg/l MS Low High

434 True Environmental QA/QC Compliance Assessment for DQO Reporting Work Order : ES Page : 1 of 4 Laboratory : Environmental Division Sydney Contact : MS IMOGEN POWELL Telephone : Project : A AUSGRID CABLE ROUTE Date Samples Received : 04-Aug-2015 Site : RHODES Issue Date : 05-Aug-2015 Sampler : No. of samples received : 4 Order number : No. of samples analysed : 4 This report is automatically generated by the ALS LIMS through interpretation of the ALS Quality Control Report and several Quality Assurance parameters measured by ALS. This automated reporting highlights any non-conformances, facilitates faster and more accurate data validation and is designed to assist internal expert and external Auditor review. Many components of this report contribute to the overall DQO assessment and reporting for guideline compliance. Brief method summaries and references are also provided to assist in traceability. Summary of Outliers Outliers : Quality Control Samples This report highlights outliers flagged in the Quality Control (QC) Report. NO Method Blank value outliers occur. NO Duplicate outliers occur. NO Laboratory Control outliers occur. NO Matrix Spike outliers occur. For all regular sample matrices, NO surrogate recovery outliers occur. Outliers : Analysis Holding Time Compliance NO Analysis Holding Time Outliers exist. Outliers : Frequency of Quality Control Samples Quality Control Sample Frequency Outliers exist - please see following pages for full details. R I G H T S O L U T I O N S R I G H T P A R T N E R

435 Page : 2 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Outliers : Frequency of Quality Control Samples Matrix: SOIL Quality Control Sample Type Method Count Rate (%) QC Regular Actual Expected Method Blanks (MB) TCLP for Non & Semivolatile Analytes Analysis Holding Time Compliance Quality Control Specification This report summarizes extraction / preparation and analysis times and compares each with ALS recommended holding times (referencing USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein. Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics 14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters. Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern. Matrix: WATER Method Container / Sample ID(s) Sample Date Date extracted Extraction / Preparation Due for extraction Evaluation: û = Holding time breach ; = Within holding time. Analysis Evaluation Date analysed Due for analysis Evaluation EG005C: Leachable Metals by ICPAES Clear Plastic Bottle - Nitric Acid; Unfiltered (EG005C) SB3A_0.3, SB3A_0.5, SB3A_0.3 - DUPLICATE LEACHATE, SB3A_0.5 - DUPLICATE LEACHATE 04-Aug Aug Jan Aug Jan-2016

436 Page : 3 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Quality Control Parameter Frequency Compliance The following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(were) processed. Actual rate should be greater than or equal to the expected rate. A listing of breaches is provided in the Summary of Outliers. Matrix: SOIL Quality Control Sample Type Analytical Methods Method Blanks (MB) TCLP for Non & Semivolatile Analytes Method EN33a Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation û Quality Control Specification Matrix: WATER Quality Control Sample Type Analytical Methods Laboratory Duplicates (DUP) Leachable Metals by ICPAES Laboratory Control Samples (LCS) Leachable Metals by ICPAES Method Blanks (MB) Leachable Metals by ICPAES Matrix Spikes (MS) Leachable Metals by ICPAES Method EG005C EG005C EG005C EG005C Count QC Regular Actual Evaluation: û = Quality Control frequency not within specification ; = Quality Control frequency within specification. Rate (%) Expected Evaluation Quality Control Specification

437 Page : 4 of 4 Work Order : ES Project : A AUSGRID CABLE ROUTE Brief Method Summaries The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions. Analytical Methods Method Matrix Leachable Metals by ICPAES EG005C SOIL Method Descriptions In house: referenced to APHA 3120; USEPA SW : The ICPAES technique ionises leachate sample atoms emitting a characteristic spectrum. This spectrum is then compared against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3) Preparation Methods Method Matrix TCLP for Non & Semivolatile Analytes EN33a SOIL Method Descriptions In house QWI-EN/33 referenced to USEPA SW : The TCLP procedure is designed to determine the mobility of both organic and inorganic analytes present in wastes. The standard TCLP leach is for non-volatile and Semivolatile test parameters.

438 Appendix D Bore logs

439 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB01 SHEET 1 OF 1 18/2/15 18/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=1.5 ppm J FILL; roadbase, grey, compact, some concrete. SB1_0.1 HA 0.55 PID=0 ppm J FILL; clayey gravel; grey/brown, large coarse grained gravels, medium grained sand, dense. SB1_0.5 DUP01 TRIP as above with some red and grey mottled medium plasticity clay, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J as above with weathered, crushed shale and sandstone inclusions. Sandstone is coarse grained, hard. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB1 - TR SB1_1.5

440 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB02 SHEET 1 OF 1 18/2/15 18/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; roadbase, brown, dry, coarse grained subangular gravels, clay fines, coarse grained sand, crushed concrete, loose to very dense. SB2_0.1 HA 0.50 PID=0.4 ppm J FILL; clay, brown/red, low plasticity, dry, stiff. SB2_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J as above but grey in colour. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB2_1.0 SB2 - TR SB2_1.5

441 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB03 SHEET 1 OF 1 18/2/15 18/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.15 PID=0.6 ppm J FILL; roadbase, brown/grey, dry, very dense, pieces of crushed concrete. SB3_ FILL; crushed roadbase, gravels, concrete and red low plasticity stiff clay. HA PID=0.1 ppm J SB3_ FILL; red, low palsticity clay, fine grained rounded gravels, crushed shale, dry, loose. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J CL CLAY; red/grey mottled, low plasticity, dry, stiff. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB3 - TR SB3_1.5

442 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) 5 DEPTH(m) 6 FIELD TEST 7 8 SAMPLE Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL ASPHALT Surface RL: Co-ords: SOIL/ROCK MATERIAL FIELD DESCRIPTION Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB3A SHEET 1 OF 1 15/7/15 15/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.2 ppm J&B FILL: Gravel, coarse grained, white, some clay 0.30 PID=0.1 ppm J&B FILL: Clay, low plasticity, red/grey, dry PID=0 ppm J&B _0.5, DUP06, TRIP PID=0 ppm J CLAY: Low plasticity, red and grey, stiff, dry Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0 ppm PID=0 ppm PID=0 ppm J J J As above: with white coarse grained sandstone END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

443 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB04 SHEET 1 OF 1 18/2/15 19/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.7 ppm J FILL; roadbase, black, gravels and crushed concrete. SB3_ FILL; clay; red, low plasticity, some rounded gravel inclusions. HA PID=0 ppm J SB3_ as above without gravel and some grey mottling. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm J as above with weathered shale, weak, dry. SHALE; weathered, weak rock. as above but less weathered. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB3 - TR SB3_1.5

444 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB05 SHEET 1 OF 1 19/2/15 19/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.2 ppm J FILL; roadbase, grey angular gravels, crushed cement, very dense, dry. SB5_ FILL; red/grey mottled clay, low plasticity, dry, stiff, dense, some medium grained angular gravel. HA PID=0.5 ppm J SB5_0.5 DUP02 TRIP as above but no gravels and soft. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J CLAY; red/grey mottled, low to medium plasticity, stiff, dry, some fine grained gravel inclusions. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB5_1.0 SB5 - TR SB5_1.5

445 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) 5 DEPTH(m) 6 FIELD TEST 7 8 SAMPLE Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL ASPHALT Surface RL: Co-ords: SOIL/ROCK MATERIAL FIELD DESCRIPTION Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB5A SHEET 1 OF 1 15/7/15 15/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=3.9 ppm J FILL: Gravel, roadbase, some low plasticity clay and silt and sand, dry 0.30 FILL: Silty sandy clay, brown, dry, inclusions of crushed brick 0.50 PID=0 ppm J FILL: Clay, medium plasticity, red/grey mottled, dry, inclusions of crushed ballast becoming low plasticity with depth Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0 ppm PID=0 ppm J J CLAY: high plasticity, brown, dry END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

446 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA CONCRETE; two slabs, 0.21 m thick each. Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB06 SHEET 1 OF 1 19/2/15 19/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.42 FILL; Gravel; coarse, subangular, dry. HA 0.50 PID=0 ppm J FILL; Clay; brown with some red mottling, medium plasticity, minor gravel, dry. SB6_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J FILL; Clay; red/grey mottled, some crushed extremely weathered shale, dry, hard. as above with increased shale content. FILL; Silty Clay; dark brown, high plasticity, soft, some rounded fine grained gravel inclusions, dry to moist. as above, lighter brown colour. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB6 - TR SB6_1.5

447 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA CONCRETE Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB07 SHEET 1 OF 1 19/2/15 19/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS HA 0.45 PID=1.1 ppm J FILL; Sitly Clay; black/grey, soft, moist to dry, medium plasticity, some silt and gravel inclusions. SB7_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=.1 ppm PID=0 ppm J J FILL: Clay; red/grey mottled, medium plasticity, dry, re-worked natural material. CLAY: red/grey mottled, medium plasticity, dry, with crushed extremely weathered shale rock, weak. as above but mostly grey in colour, stiff clay. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB7_1.0 SB7 - TR SB7_1.5

448 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA TOPSOIL; mulch. Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB08 SHEET 1 OF 1 18/2/15 18/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.1 ppm J FILL; brown clay, crushed sandstone, fine grained well rounded gravels, fine grained sand, loose, dry. SB8_ as above with large (<15 cm) rubble, hand auger refusal. SFA PID=0 ppm J SB8_0.6 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm PID=0 ppm J J J FILL; roadbase, black, angular gravels, dry. as above with crushed sandstone boulders, white, weathered, dry, some low plasticity clay. SANDSTONE; red/white, weak, weathered, coarse grained. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB8_0.8 SB8 - TR SB8_1.5

449 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) 5 DEPTH(m) 6 FIELD TEST 7 8 SAMPLE Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL SOIL/ROCK MATERIAL FIELD DESCRIPTION CONCRETE Surface RL: Co-ords: Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB8A SHEET 1 OF 1 15/7/15 15/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.25 PID=0 ppm J&B FILL: Silty sandy gravel, coarse grained, brown, some low plasticity clay, dry PID=0 ppm J CLAY: Low plasiticity, red/grey, stiff, dry, inclusions of extremely weathed coarse grained sandstone Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0 ppm J SANDSTONE: coarse grained, white, extremely weathered, inclusions of some grey clay fines END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

450 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) 5 DEPTH(m) 6 FIELD TEST PID=0 ppm 7 8 SAMPLE J&B Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL Surface RL: Co-ords: SOIL/ROCK MATERIAL FIELD DESCRIPTION FILL: Silty sand: brown, inclusions of crushed sandstone gravels Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB8B SHEET 1 OF 1 15/7/15 15/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS _0.1, DUP05,TRIP FILL: Gravelly sand, coarse grained, brown 0.50 PID=0 ppm J&B SAND: hard, inclusions of organic matter PID=0 ppm J&B CLAY: low plasticity, mottled brown/red/grey, stiff, dry, inclusions of extremely weathered sandstone gravels, becoming grey only with depth Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0 ppm J&B SANDSTONE: extremely weathered, coarse grained, red, dry, inclusions of grey clay fines END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

451 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA PID=0 ppm J SAND; coarse grained, grey sand with bits of crushed sea shells, wet. Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB9_0.1 BOREHOLE NO. SB09 SHEET 1 OF 1 18/2/15 18/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.30 PID=0 ppm J as above but darker grey in colour, saturated, tree roots, mangrove odour. Hole collapse begins at 0.5 mbgl. Borehold abandoned at 0.7 mbgl due to hole collapse. SB9_0.5 END OF BOREHOLE AT 0.70 m Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 1 This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

452 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA 0.10 PID=0.2 ppm J TOPSOIL; brown, loose, fine grained rounded gravels, sand, silt and rootlets. FILL; ballast and topsoil. Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB10_0.1 BOREHOLE NO. SB10 SHEET 1 OF 1 23/2/15 23/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.20 as above, no topsoil. PID=0.5 ppm J SB10_ as above with sandstone gravel Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J FILL; weathered sandstone, red/tan, coarse grained, weak, dry. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB10 - TR SB10_1.5

453 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB11 SHEET 1 OF 1 23/2/15 23/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; roadbase, coarse grained angular gravels, silt, dry, brown. SB11_ PID=0 ppm J SANDSTONE; extremely weathered, red, fine grained, weak. Some white colouring at 1.0 mbgl. Hard layer at 1.4 mbgl. SB11_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 1 PID=0 ppm PID=0 ppm J J END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB11 - TR SB11_1.5

454 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB12 SHEET 1 OF 1 23/2/15 23/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; roadbase, black/grey, dry, hard, silt, sand, angular gravels. SB12_ PID=0 ppm J SANDSTONE; extremely weathered, red/white, extrememly weak, fine grained, dry. SB12_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J as above but tan/red colour. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB12 - TR SB12_1.5

455 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB13 SHEET 1 OF 1 23/2/15 23/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.7 ppm J FILL; roadbase, black/grey angular gravels and cement, hard, compact. SB13_ FILL; angular gravels, extremely weathered white sandstone, silt. PID=0 ppm J SB13_ SANDSTONE; red, fine grained, medium strength. Becoming white at 1.3 m BGL. TC bit refusal at 1.5 mbgl. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 1 PID=0 ppm PID=0 ppm J J END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB13 - TR

456 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB14 SHEET 1 OF 1 20/2/15 20/2/15 WN IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; silty sand, fine to medium grained, grey, low plasticity silt, fine to medium grained sub angular gravel. SB14_ as above becoming brown mottled red, with medium to coarse grained roadbase. SB14_0.5 HA PID=0 ppm J 0.60 Sandy CLAY; low to medium plasticity, yellow/brown mottled, red and white, fine to medium grained sand. Becoming red mottled grey and orange at 0.95 mbgl Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J SAND; fine to medium grain, yellow mottled white. SANDSTONE; fine to medium grained, red mottled grey, extremely weak strength. as above, becoming weak strength. as above, becoming fine grained yellow with slight red mottling, highly weathered. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB14 - TR SB14_1.5

457 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB15 SHEET 1 OF 1 26/2/15 26/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.20 PID=1.7 ppm J FILL; small rounded gravels, coarse grained tan sand, loose clay fines, extremely weathered sandstone. PID=0 ppm J SB15A_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J SANDSTONE; extremely weathered, weak, red/tan, coarse grained, dry. SANDSTONE; weathered, medium strength, coarse grained, dry, becoming white colour. as above, but white colour and harder. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB15A - TR SB15A_1.5

458 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) DEPTH(m) 6 FIELD TEST PID=0.2 ppm 7 8 SAMPLE J&B Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL SOIL/ROCK MATERIAL FIELD DESCRIPTION ASPHALT Surface RL: Co-ords: FILL: Silty sandy gravel, black, angular, dry Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB15C SHEET 1 OF 1 16/7/15 16/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.50 PID=0.1 ppm J&B FILL: sandy gravel, black/brown, roudned gravels, some red clay fines 0.70 SANDSTONE: coarse, grained, fractured, white, dry 1 PID=0 ppm J&B Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0 ppm J&B Refusal at 1.2 mbgl on sandstone END OF BOREHOLE AT 1.20 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

459 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA 2 SUPPORT 3 WATER Borehole Information 4 WELL CONSTRUCTION BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes, NSW A RL(m) DEPTH(m) 6 FIELD TEST PID=0.7 ppm 7 8 SAMPLE J&B Driller: Driller Lic No: GRAPHIC LOG 9 USC SYMBOL SOIL/ROCK MATERIAL FIELD DESCRIPTION ASPHALT Surface RL: Co-ords: FILL: Silty clayey gravel, fine to coarse grained, black, angular, dry Date Commenced: Date Completed: Recorded By: Log Checked By: Field Material Description MOISTURE RELATIVE DENSITY /CONSISTENCY FB VL L MD VS S FST D VD VST H BOREHOLE NO. SB15D SHEET 1 OF 1 16/7/15 16/7/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.30 PID=0.2 ppm J&B FILL: Sand, coarse grained, brown/red, inclusions of some fine to meduim grained rounded gravels, some sandstone 0.60 FILL; Clay, low plasticity, grey, some coarse grained sand, some inclusions of angular gravel 0.80 CLAY: low pasticity, grey, some sand Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE/WELL LOG BORELOGS.GPJ YH2006.GDT 13/8/ PID=0.1 ppm J&B SANDSTONE: extremely weathered, grey/white, some clay fines Refusal at 1.0 mbgl on sandstone END OF BOREHOLE AT 1.00 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes.

460 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB16 SHEET 1 OF 1 20/2/15 20/2/15 WN IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 FILL; fine to coarse grained sand, grey/white slt, fine grain pieces of crushed sandstone. SB16_ PID=0.1 ppm J FILL; clayey sand, brown, fine to medium grained. Low plasticity clay with fine grianed sub rounded gravel. PID=0 ppm J SB16_0.5 HA Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J FILL; gravelly sand, fine to coarse grained red brown with black and white speck, fine to medium grained subangular gravel (sandstone pieces). Sandy CLAY; low plasticity red mottled orange, fine to medium grained sand, trace fine sandstone gravels. Silty CLAY; low to medium plasticity grey mottled red and orange, trace fine grained sand. Clayey SAND; medium grained, grey, red mottled, low plasticity clay. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB16 - TR SB16_1.5

461 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB17 SHEET 1 OF 1 20/2/15 20/2/15 WN IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; silty sand, fine to coarse grained, grey, trace fine grained gravel. SB17_ PID=0.1 ppm J FILL; silty gravelly sand, fine to coarse grained, brown, low plasticity silt, fine grained sub angular gravel. Trace sandstone gravels at 0.5 mbgl. SB17_0.5 HA 0.60 FILL; sand, fine grain, brown, rootlets with fine to medium grained angular red gravel, silt. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J SAND; fine grained, red mottled brown and yellow, trace low plasticity silt. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB17 - TR SB17_1.5

462 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB18 SHEET 1 OF 1 20/2/15 20/2/15 WN IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.1 ppm J FILL; silty sand, fine to coarse grained, grey, brown, low plasticity silt with fine to medium grained sub angular gravel. SB18_ PID=0.1 ppm J SAND; fine to medium grained, brown, with fine to medium grained sub angular gravel. Medium to coarse grained angular red gravels at 0.5 mbgl. SB18_0.5 HA Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J Silty CLAY; low plasticity, red mottled yellow, trace fine grained sand. Sandy CLAY; low plasticity, white-grey mottled red/yellow, fine to medium grained sand. Clayey SAND; fine to medium grained, grey-white mottled yellow, low plasticity clay with sandstone chips. SANDSTONE; fine to medium grained, white mottled red, high weathering, weak stength. as above, becoming white-grey with slight mottling, medium weathering, weak strength. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB18_1.0 DUP03 TRIP03 SB18 - TR SB18_1.5

463 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB19_0.1 BOREHOLE NO. SB19 SHEET 1 OF 1 24/2/15 24/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.1 ppm J FILL; roadbase, angular gravels, silts, sand, black, hard, dry FILL; medium plasticity brown clay, weathered tan sandstone, small rounded gravels, dry, hard FILL; high plasticity brown clay, dry to moist, hard. SB19_ PID=0 ppm J CLAY; red and grey mottled, medium plasticity, firm, dry CLAY; as above but low plasticity, harder, brittled, some weathered sandstone inclusions. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J SANDSTONE; extremely weathered, weak, red, dry, some clay fines. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB19_1.0 DUP04 TRIP04 SB19 - TR SB19_1.5

464 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB20 SHEET 1 OF 1 24/2/15 24/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J FILL; Sand; coarse grained tan sand, loose, dry with crushed red/white sandstone boulders. SB20_ FILL; coarse grained sand and sandstone with low plasticity brown clay fines. SB20_0.5 PID=0 ppm J Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm J FILL; extremely weathered sanstone, brown, coarse grained, extremely weak, some grey mottled low plasticity clay. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB20 - TR

465 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB21_0.1 BOREHOLE NO. SB21 SHEET 1 OF 1 25/2/15 25/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS PID=0.7 ppm J 0.20 FILL; roadbase, coarse grained angular gravels, silt, sand, black/grey, dry FILL; extremely weathered sandstone, tan, coarse grained, dry. SB21_0.5 PID=0.1 ppm J 0.60 FILL; weathered sandsotne, brown and grey high plasticity clay, firm, small rounded medium grained gravels, some silt and sand, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J SANDSTONE; weathered, tan, coarse grained, weak, dry, some clay fines. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB21 - TR SB21_1.5

466 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB22_0.1 BOREHOLE NO. SB22 SHEET 1 OF 1 24/2/15 24/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS PID=0.7 ppm J 0.20 FILL; roadbase FILL; extremely weathered sandstone, red, course grained, compact, with coarse grained rounded gravels, some roadbase. SB22_0.5 HA PID=0 ppm J Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J SANDSTONE; weathered, coarse grained, red/grey, extremely weak, dry, some medium plasticity clay throughout. Becoming harder with depth. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB22 - TR SB22_1.5

467 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB23_0.1 BOREHOLE NO. SB23 SHEET 1 OF 1 24/2/15 24/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS PID=0.7 ppm J FILL; roadbase, black angular coarse grained gravels, hard, dry, with weathered coarse grained sandstone. FILL; roadbase, brown medium plasticity clay, small rounded to angular gravels, medium to coarse grained sand, dry. SB23_0.5 HA 0.50 PID=0 ppm J FILL; dark brown medium plasticty clay, dry to moist as above but lighter brown. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J CLAY; red/grey mottled, medium plasticity, firm, dry to moist. as above becoming harding with depth. CLAY; grey/tan, medium plasticity, hard, some extrememly weathered red sandstone. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB23 - TR SB23_1.5

468 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD CC ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB24_0.16 BOREHOLE NO. SB24 SHEET 1 OF 1 23/2/15 23/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS HA PID=0.7 ppm J FILL; roadbase, large subangular gravels, silty clay, brown, dry. FILL; roadbase, low plasticity orange clay with crushed weathered sandstone inclusions, dry. SB24_ PID=0 ppm J CLAY; red/grey mottled, medium plasticity, stiff, dry as above, bits of crushed sandstone throughout. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J CLAY; grey/red mottled, medium plasticity, stiff, dry. as above with extremely weathered sandstone inclusions. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB24 - TR SB24_1.5

469 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB25 SHEET 1 OF 1 7/5/15 7/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.3 ppm J FILL; roadbase, grey/black, angular gravels, hard. SB25_0.2 HA 0.40 PID=0 ppm J FILL; brown medium to high plasticity clay, fine grained rounded gravels, silt, fine grained sand, dry. SB25_ CLAY; red mottled grey, medium to high plasticity, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm J CLAY; grey mottled red, high plasticity, dry, some minor weathered sandstone inclusions. SANDSTONE; extremely weathered, extremely weak, grey clay fines, dry. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB25 - TR SB25_1.5

470 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB26 SHEET 1 OF 1 8/5/15 8/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.1 ppm J FILL; roadbase, grey/black, angular fine to coarse grained gravels, hard. SB26_0.2 HA 0.40 PID=0.1 ppm J FILL; silt, medium grained sand, grey/tan low plasticity clay, some extremely weathered sandstone, dry. SB26_ FILL; extremely weathered tan medium grained sandstone, minor grey low plasticity clay inclusions, hard, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm J as above but harder. Hand auger refusal. SANDSTONE; extremely weathered, extremely weak, fine grained, grey clay fines, dry. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB26 - TR SB26_1.5

471 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB27 SHEET 1 OF 1 7/5/15 7/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0..1 J FILL; roadbase, grey/black, angular gravels, hard. SB27_0.2 HA 0.40 PID=0 ppm J FILL; brown/tan low plasticity clay, silt, coarse grained sand, loose, dry. SB27_ CLAY; grey mottled red, medium plasticity, dry, firm. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J CLAY; brown, high plasticity, some minor rounded fine grained gravel inclusions. Becoming harder to cut through with depth. CLAY; red mottled grey, low plasticity, minor fine grained gravel inclusions. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB27 - TR SB27_1.0 SB27_1.5

472 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA PID=0 ppm J Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION TOPSOIL; brown, low plasticity clay, medium grained sand, fine grained rounded gravels, moist, loose. Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB28_0.2 BOREHOLE NO. SB28 SHEET 1 OF 1 7/5/15 7/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.30 PID=0 ppm J FILL; brown low plasticity clay, coarse grained rounded gravels, medium grained sand, crushed sandstone, moist. SB28_ as above but becoming tan and grey colour with depth CLAY; brown/tan mottled red and grey, high plasticity, soft, wet. W Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm J CLAY; as above but saturated, some fill material, angular coarse grained gravels. CLAY; grey, stiff, medium plasticity, moist. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. M SB28 - TR SB28_1.5

473 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB29 SHEET 1 OF 1 8/5/15 8/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.3 ppm J FILL; roadbase, grey/black, angular gravels, hard, dry. SB29_0.2 HA 0.40 PID=0 ppm J FILL; tan/red low plasticity clay, brittle, dry, medium grained sand. SB29_0.5 SFA 0.70 as above with crushed sandstone, dry. Refusal with hand auger. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J Sandy CLAY; tan/grey, low plasticity, dry, with medium grained sand inclusions. SANDSTONE; extremely weathered, extremely weak, tan, medium grained. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB29 - TR SB29_1.0 SB29_1.5

474 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB30_0.1 BOREHOLE NO. SB30 SHEET 1 OF 1 25/2/15 25/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.20 PID=0.8 ppm J FILL; brown high plasticity clay, dry to moist, some red colouring, fine grianed rounded gravel and sand inclusions PID=0.1 ppm J CLAY; red/grey mottled, high plasticity, dry. Becoming harder with depth. SB30_ as above with extremely weathered sandstone inclusions. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J SANDSTONE; extremely weathered, red, coarse grained, extrememly weak. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB30_1.0 SB30 - TR SB30_1.5

475 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB31 SHEET 1 OF 1 8/5/15 8/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.5 ppm J FILL; roadbase, grey/black, angular gravels, hard, dry. SB31_0.2 HA 0.40 PID=0.7 ppm J FILL; black high plasticity clay, fine to medium grained rounded gravels, medium grained sand, dry. SB31_ as above without gravels Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm PID=0 ppm J J CLAY; grey mottled red, high plasticity, dense, dry, some extremely weathered red sandstone inclusions. CLAY; grey mottled red, some tan colouring, medium plasticity, some sandstone inclusions, dry. CLAY; refusal with hand auger, grey and tan, low plasticity, dense, brittle, dry, weathered sandstone inclusions. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB31 - TR SB31_1.0 SB31_1.5

476 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB32 SHEET 1 OF 1 7/5/15 7/5/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0.2 ppm J FILL; roadbase, grey/black, angular gravels, hard. SB32_0.2 HA 0.45 PID=0 ppm J FILL; brown high plasticity clay, silt, coarse rounded to angular gravels, some crushed red sandstone, moist. SB32_0.5 DUP05 TRIP CLAY; grey mottled red/orange, low plasticity, minor fine grained rounded gravel inclusions, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 SFA PID=0 ppm J as above with crushed red sandstone inclusions. Hand auger refusal. CLAY; grey, dense, dry, extremely weathered, extremely weak white fine grained sandstone inclusions. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB30 - TR SB30_1.5

477 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION TOPSOIL; sandstone rubble, rootlets, silt, sand, dry. Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB34A_0.2 BOREHOLE NO. SB34 SHEET 1 OF 1 26/2/15 26/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS PID=0 ppm J SFA 0.40 PID=0 ppm J FILL; extremely weathered tan coarse grained sandstone, silts, clay fines, fine grained rounded gravels. SB34A_0.5 Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J FILL; as above but sandstone is brown/red colour as above but with blue metal. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB34A_1.0 SB34A - TR SB34A_1.5

478 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD HA GRASS Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) SB35A_0.1 BOREHOLE NO. SB35 SHEET 1 OF 1 26/2/15 26/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=0 ppm J TOPSOIL; sandstone rubble, rootlets, silt, sand, dry. PID=0 ppm J SB35A_ CLAY; grey/red mottled, low plasticity, brittle, with extremely weathered rock inclusions. SFA 0.60 SANDSTONE; extremely weathered, red, weak, medium grained, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J as above but coarse grained with some clay fines. Became medium strength rock at 1.45 mbgl. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB35A - TR SB345_1.5

479 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB36 SHEET 1 OF 1 26/2/15 26/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS SB36_ PID=0.1 ppm J FILL; weathered coarse grained tan sandstone, fine grained rounded gravels, silt, loose, dry PID=0 ppm J FILL; high plasticity brown clay, fine grained rounded gravels, coarse grained sand, weathered shale, weathered sandstone, dry, difficult to drill through. SB36_ SANDSTONE; white/tan, medium grain, medium strength rock. TC bit refusal at 1.15 mbgl. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/15 1 END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB36 - TR

480 : Project: Borehole Location: Project Number: Drill Model/Mounting: Borehole Diameter: 1 METHOD SFA ASPHALT Field Material Description SUPPORT Borehole Information WATER RL(m) DEPTH(m) FIELD TEST BOREHOLE ENVIRONMENTAL LOG Ausgrid Top Ryde to Homebush Cable Route Rhodes A MC-T mm SAMPLE GRAPHIC LOG USC SYMBOL Hole Angle: Bearing: SOIL/ROCK MATERIAL FIELD DESCRIPTION Surface RL: Co-ords: MOISTURE RELATIVE DENSITY / CONSISTENCY FB VL L MD VS S FST Date Commenced: Date Completed: Recorded By: Log Checked By: D VD VST H HAND PENETROMETER (kpa) BOREHOLE NO. SB37 SHEET 1 OF 1 26/2/15 26/2/15 KL IP STRUCTURE AND ADDITIONAL OBSERVATIONS 0.10 PID=1.1 ppm J FILL; roadbase, large grained, angular gravels, silt, sand, brown, dry. SB37_ FILL; weathered medium grained sandstone, dry PID=0 ppm J FILL; brown/grey high plasticity clay, dry with some weathered sandstone. SB37_ CLAY; grey/red mottled, high plasticity, some extremely weathered sandstone, dry. Parsons Brinckerhoff Australia Pty Ltd. Version 5.1 ENVIRONMENTAL BOREHOLE LOG BORELOGS.GPJ YH2006.GDT 4/6/ PID=0 ppm PID=0 ppm J J SANDSTONE; crushed boulders (1-5cm), angular, extrememly weathered, weak, coarse grained, red, dry, with grey low plasticity stiff clay throughout. SANDSTONE; extremely weathered, red, medium grained, becoming harder and more red with depth. END OF BOREHOLE AT 1.50 m This borehole log should be read in conjunction with Parsons Brinckerhoff's accompanying standard notes. SB37 - TR SB37_1.5

481 Appendix E Thermal resistivity laboratory reports

482 To : Imogen Powell Parsons Brinckerhoff Date : 10 th March 2015 Test Report Project Number : 1026 Project Details : Rhodes to Top Ryde Order Number : A Report Number : Thermal Resistivity (TR) of Native Soil Sampled Materials The following results were obtained from the analysis of samples re-compacted by Geotherm, to 98% of standard Proctor compaction effort, from materials collected by Parsons Brinckerhoff. The moisture content during sample preparation was not altered from that which was contained in the sample(s) when received, until the final dry out process. Test ID / Material Description SB1 18/02/2015 / Brown sandy gravelly clay SB2 18/02/2015 / Grey red clay SB3 19/02/2015 / Yellow brown clayey silt SB4 19/02/2015 / Grey clayey silt with shale SB5 19/02/2015 / Grey orange red silty clay SB6 19/02/2015 / Black brown silty clay SB7 19/02/2015 / Red grey clay SB8 18/02/2015 / Brown black gravelly clayey sand Material Std Proctor Density (t/m 3 ) Test Sample Moisture Content (% Dry Weight) TR Test Sample Details TR at listed moisture content (wet) (Km/W) Test Sample Approx. Dry Density (t/m 3 ) Fully Dry TR (Km/W) Geotherm Australasia Pty Ltd 126 Beaconsfield Street, Silverwater NSW 2128 PO Box 6307, Silverwater. NSW 1811 Phone: Fax: brett@geothermaust.com.au Website: ABN AS/NZS ISO 9001:2000 Certification No: 7485

483 Test ID / Material Description SB10 23/02/2015 / Brown silty sand SB11 23/02/2015 / Brown grey clayey silt SB12 23/02/2015 / Yellow brown silt SB13 23/02/2015 / Light brown orange silt SB14 20/02/2015 / Red yellow clayey sand SB15A 26/02/2015 / Orange grey silty sand SB16 20/02/2015 / Red grey silty clay SB17 20/02/2015 / Brown clayey silt with rocks SB18 20/02/2015 / Red yellow clayey sand SB19 24/02/2015 / Red grey silty clay SB20 24/02/2015 / Brown clayey silt SB21 25/02/2015 / Brown silty sand SB22 24/02/2015 / Brown red sandy clay SB23 24/02/2015 / Grey orange clay with rocks SB24 23/02/2015 / Grey red clay Material Std Proctor Density (t/m 3 ) Test Sample Moisture Content (% Dry Weight) TR Test Sample Details TR at listed moisture content (wet) (Km/W) Test Sample Approx. Dry Density (t/m 3 ) Fully Dry TR (Km/W) Geotherm Australasia Pty Ltd Page 2 of 3

484 TR Test Sample Details Test ID / Material Description SB30 25/02/2015 / Red grey silty clay with rocks SB34A 26/02/2015 / Brown rocky silt SB35A 26/02/2015 / Brown clayey silt SB36A 26/02/2015 / Yellow grey silty sand SB37 26/02/2015 / Brown grey silty clayey sand Material Std Proctor Density (t/m 3 ) Test Sample Moisture Content (% Dry Weight) TR at listed moisture content (wet) (Km/W) Test Sample Approx. Dry Density (t/m 3 ) Fully Dry TR (Km/W) Notes Thermal Resistivity testing conducted in accordance with IEEE Standard Guide for Soil Thermal Resistivity Measurements. ASTM Standard D5334 and Ausgrid NS130 Appendix K. Moisture Content determined in accordance with AS Dry Density determined by mass per volume calculation. The above samples will be discarded after 2 weeks. Brett Hobson Manager Geotherm Australasia Pty Ltd Page 3 of 3

485 To : Imogen Powell Parsons Brinckerhoff Date : 18 th May 2015 Test Report Project Number : 1026 Project Details : Rhodes to Top Ryde Order Number : A Report Number : Thermal Resistivity (TR) of Native Soil Sampled Materials The following results were obtained from the analysis of samples re-compacted by Geotherm, to 98% of standard Proctor compaction effort, from materials collected by Parsons Brinckerhoff. The moisture content during sample preparation was not altered from that which was contained in the sample(s) when received, until the final dry out process. Test ID / Material Description SB25 07/05/2015 / Grey red silty clay SB26 08/05/2015 / Brown clayey silt SB27 07/05/2015 / Black brown silty clay SB28 07/05/2015 / Brown grey clay with rocks SB29 08/05/2015 / Brown grey clayey silt SB31 08/05/2015 / Grey orange silty clay SB32 07/05/2015 / Grey brown silty clay Material Std Proctor Density (t/m 3 ) Test Sample Moisture Content (% Dry Weight) TR Test Sample Details TR at listed moisture content (wet) (Km/W) Test Sample Approx. Dry Density (t/m 3 ) Fully Dry TR (Km/W) Geotherm Australasia Pty Ltd 126 Beaconsfield Street, Silverwater NSW 2128 PO Box 6307, Silverwater. NSW 1811 Phone: Fax: brett@geothermaust.com.au Website: ABN AS/NZS ISO 9001:2000 Certification No: 7485