CITY OF BAYTOWN CENTRAL DISTRICT WASTEWATER TREATMENT PLANT GRIT, SECURITY, AND SCADA IMPROVEMENTS SCOPE OF SERVICES

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1 CITY OF BAYTOWN CENTRAL DISTRICT WASTEWATER TREATMENT PLANT GRIT, SECURITY, AND SCADA IMPROVEMENTS SCOPE OF SERVICES FINAL DESIGN, BID PHASE, AND CONSTRUCTION SERVICES BACKGROUND ARCADIS U.S., Inc. (ARCADIS) will provide professional engineering services described herein for final design of a grit system, site security improvements, and Supervisory Control and Data Acquisition (SCADA) improvements at the City of Baytown (City) Central District Wastewater Treatment Plant (WWTP). The scope of work for these services will include basic design services (detailed design drawings, technical specifications, cost estimates, and bid phase services), additional design services, and construction administration services. The scope is based on improvements for the following areas: 1. New bar screen 2. Demolition of existing grit basins and associated channels 3. New grit basins, grit removal and washing equipment 4. Associated civil, structural, electrical, and instrumentation for the grit system. 5. Addition of primary field instruments, analyzers, and controls for the aeration basins/blowers, secondary clarifiers, sludge pump station, sludge thickener, aerobic digesters, chlorine contact / chlorination/dechlorination facility, quiescent tanks, outlet structure, nonpotable water system, belt press facility, recycle pump station, and miscellaneous facilities. 6. New security gate on east entrance, site fencing, fencing around east end of final clarifier/aeration basin, and security cameras. 7. Facility improvements ranging from emergency generator, SCADA (primary field instruments, control panel, radio tower), or pump improvements for the following four lift stations: No. 46 Country Club (SCADA & Pump), No. 62 Rollingbrook (SCADA & Pump), No. 45 North Main #1 (SCADA & Generator), No. 73 Country Club Estates (SCADA & Pump). If the construction budget allows, the following lift stations and scope will be evaluated: No. 35 Big Missouri (SCADA & Generator), No. 41 Texas (SCADA & Generator), No. 43 Gulf Coast (SCADA), No. 47 Baker Road (SCADA & Generator). 8. Addition of an operator workstation in the Administration Building with human-machine interface (HMI), historian, printers, and ancillary routers, servers, and power supply. Improvements will be bid and constructed as a single package along with the flood improvements designed by ARCADIS under a separate authorization.

2 SERVICES TO BE PROVIDED BY ARCADIS Basic Services Task 1 Detailed Design 1.1 Kickoff Meeting ARCADIS will coordinate a kickoff meeting with key City of Baytown stakeholders to establish the goals, objectives, and expectations for the project. The meeting will be held at City facilities. Meeting agenda Meeting minutes to document key decisions and agreed action items Document Existing Treatment Processes and Equipment and Develop Control Strategies ARCADIS will conduct an initial workshop with COB operations staff to develop and document the current operational strategies for the plant. Once the existing treatment processes and equipment are documented on Process and Instrumentation Drawings (PIDs), ARCADIS will propose new primary field instruments, process analyzers, and operational strategies using the PIDs. A second workshop will be held to discuss the proposed PIDs. An Automation Control Strategy document will be developed documenting the proposed strategies for automated operations of each process area of the plant, and the requirements for the HMI. After review by the City, a third workshop will be held to review the Control Strategy document to gather feedback from operational staff. The results of this workshop will be used to finalize the PIDs and create a control narrative specification. Draft PIDs Draft Automation Control Strategy Final PIDs Contract Documents The scope of services will include detailed design drawings, bid documents, technical specifications, and cost estimates. The level of effort is based on the drawing list shown in Attachment A, for a single construction package. Definition of milestones and sequences for maintenance of plant operations during construction will be included in the technical specifications. ARCADIS will prepare a project manual that includes City-provided bidding documents, agreement, general and special conditions. ARCADIS will provide technical specifications based /31/2013 Page 2

3 on ARCADIS standard specifications. The Project Manual will be prepared in Microsoft Word format. Detailed design drawings and technical specifications signed and sealed by a Registered Professional in the State of Texas. Drawings will be developed using AUTOCAD. o 50% Design submittal Five half size 11x17 copies of 50% design drawings and draft specifications. AACE Class 3 estimate of probable construction costs. o 90% Design submittal Five half size 11x17 copies of 90% drawings and project manual. Two full size 22 x 34 drawings sets for submittal to Building Permits AACE Class 2 estimate of probable construction costs. o Bid-Ready Design submittal 3 full size 22x34 copies and 2 half size 11x17 copies of 100% drawings, and 5 copies of the project manual. Two disks with the documents saved in Adobe.pdf format. 1.4 Structural Design ARCADIS will retain the services of Stanley, Spurling & Hamilton, Inc. for the structural design of the grit facilities, security improvements, and emergency generator pads at the remote lift stations. 1.5 Design Submittal Workshops ARCADIS will coordinate two workshops with key City of Baytown stakeholders to review progress at the 50% and 90% milestone submittals. The purpose of the workshops will be to clarify design issues and to capture City comments to the design. The meetings will be held at City facilities. Workshop agenda Workshop comments recorded to document key decisions and agreed action items Regulatory Approval / Local Agency Approvals ARCADIS will submit a design report, drawings and specifications for review by TCEQ, and applicable local agencies. The general contractor will be responsible for obtaining permits as required to comply with the codes of the jurisdiction for the actual construction of the project. One set of a design report, specifications and 22 x 34 inch set of the drawings to TCEQ /31/2013 Page 3

4 Up to three sets of contract documents and 22 x 34 inch set of the drawings to local permitting agencies Task 2 Bid Phase Services Following the bid-ready design submittal, ARCADIS will provide Bid Phase services. The Bid Phase is expected to have a four-week duration. The following scope will be provided: Attend Pre-Bid meeting and site visit for prospective bidders Prepare and issue addenda Respond to bidder questions Bid evaluation / bid tabulation Recommendation of award Provide 3 copies of conformed contract documents to the City for its use in executing the construction contract Task 3 - Construction Phase Services Following award of the project and issuance of the Construction Notice to Proceed, ARCADIS will provide the following Construction Phase services scope over an 18-month construction period: Attend one pre-construction meeting Attend up to 18 periodic (monthly) construction progress meetings. Provide engineering services during construction for submittal reviews: approximately 100 submittals, technical operations and maintenance manuals, requests for information (RFIs), and contract change requests (CCRs). Participate in substantial and final completion inspections and punch lists. Prepare final acceptance certification. Prepare record drawings based on information provided by the construction contractor 3.2 Subconsultants Stanley, Spurling, and Hamilton will provide construction phase services as described in Subtask 3.1 for the structural portion of the work for which they performed the design. Additional Services Task 4 - Geotechnical Investigations Aviles Engineering, a professional geotechnical engineering firm registered in the State of Texas, will be retained to drill and collect soil borings, provide characterization of the subsurface soil /31/2013 Page 4

5 conditions, provide foundation construction recommendations, and provide an engineering report for the following areas: One 50-ft deep soil boring for the grit facility. One 25-ft deep soil boring for the described scope of work at each of the specified lift station sites. Task 5 Grit Characterization and Equipment Evaluation ARCADIS will collect samples of the WWTP influent following a rain event,and analyze the samples for grit particle size and settling characteristics. Using those results, ARCADIS will evaluate two alternative grit removal technologies (mechanical vortex PISTA type and gravity vortex HEADCELL type) with a cost comparison of the two alternatives. The City will assist in the collection of influent samples. Results of grit characterization testing Technical memorandum on vortex grit removal technology evaluation The services described in Tasks 1-5 constitute the complete scope of work to be performed by ARCADIS. Special Services The following services are not part of this scope of work, but may be performed by ARCADIS if requested by the City as an amendment to this scope. Resident project representative services on-site during construction Develop standard operating procedures Factory witness testing Additional site visits during construction Startup assistance Produce operations and maintenance manuals 11 th month warranty inspection Additional construction meetings Design of bid alternates Value engineering and re-design resulting from value engineering /31/2013 Page 5

6 SERVICES TO BE PROVIDED BY THE CITY The following services will be the responsibility of the City. Personnel and equipment for excavation to verify plant utilities and yard piping. Record drawings of existing plant buried utilities and process pipes. Participation in workshops. Timely review of milestone submittals. Coordination with other City departments (Flood Plain Management, Building Permits, Design Review Committee, Streets, etc ) On-site inspection of daily construction activities and coordination with the construction contractor, periodic construction meetings, review and approval of schedule and pay estimates, processing change orders, overall coordination with the contractor. SCHEDULE The services described herein will be completed according to the following milestones. Duration is in calendar days, starting from receipt of written notification-to-proceed. Milestone Complete 50% Design Duration 150 days 50% City Review and Workshop 21 days Complete 90% Design 90 days 90% City Review and Workshop 21 days Complete Bid Ready Contract Documents 40 days /31/2013 Page 6

7 COMPENSATION ARCADIS will provide the services described herein on a lump sum basis invoiced by phase (Design, Bid, Construction) with regular invoicing reflecting percent complete of each phase of work. The contract amount for the services described herein is $826,241.00, categorized as follows. A detailed summary is provided in Attachment C. Task Amount 1 Detailed Design $512, Bid Phase $13, Construction Administration $178, Geotechnical $ Grit Characterization and Evaluation $10, Reimbursable Expenses Design $11, Bid Phase $1, Construction $12, Subconsultants Design $79, Bid Phase $0.00 Construction $6, /31/2013 Page 7

8 CITY OF BAYTOWN Rev Date 1/13/2013 Central District WWTP Grit, SCADA, and Security Improvements Project No ATTACHMENT C FEE ESTIMATE FOR ARCADIS Prinicpal Project Manager Process Engr Civil Engr Electl Lead Elec Engr SCADA Lead I&C Engr SCADA Engr Sr CAD Jr Cad QC Admin Total Task Description Gr 11 Gr 10 Gr7 Gr8 Gr10 Gr7 Gr10 Gr9 Gr7 Gr6 Gr4 Gr10 Gr5 Labor Reimbursable Costs Subconsultants Total I. BASIC SERVICES 1 Detailed Design 1.1 Kickoff Mtg $ 1,899 $ - $ - $ 1, Doc Ex Processes & Equipment/Control Strategies $ 24,502 $ 5,122 $ - $ 29, Contract Documents Drawings $ 464,905 $ 960 $ - $ 465,865 Project Manual $ 9,591 $ 66 $ - $ 9,657 Cost Estimates $ 3,327 $ - $ - $ 3, Structural Design (Stanley Spurling & Hamilton) $ 1,297 $ 66 $ 22,000 $ 23, Workshops $ 4,466 $ 4,156 $ - $ 8, Regulatory Approvals $ 2,274 $ 66 $ - $ 2,340 Subtotal $ 512,262 $ 10,436 $ 22,000 $ 544,698 2 Bid Phase Services $ 13,819 $ 1,292 $ - $ 15,111 3 Services During Construction 3.1 Construction Administration $ 176,820 $ 12,496 $ 6,600 $ 195, Building SDC (Stanley Spurling & Hamilton) $ 1,297 $ 198 $ - $ 1,495 Subtotal $ 178,117 $ 12,694 $ 6,600 $ 197,411 Total $ 704,199 $ 24,422 $ 28,600 $ 757,221 II. ADDITIONAL SERVICES 4 Geotechnical $ 683 $ 204 $ 40,700 $ 41,587 5 Grit Characterization and Evaluation $ 10,527 $ 406 $ 16,500 $ 27,433 Total $ 11,210 $ 610 $ 57,200 $ 69,020 TOTAL AUTHORIZATION ,095 $ 715,409 $ 25,032 $ 85,800 $ 826,241

9 CITY OF BAYTOWN CENTRAL DISTRICT WWTP FEE ESTIMATE FOR ENGINEERING SERVICES FOR GRIT IMPROVEMENTS ATTACHMENT A LIST OF DRAWINGS No. Dwg No. DRAWING DESCRIPTION 1 G 1 Index of Drawings 2 C 1 Site Plan 3 C 2 Paving, Grading, and Drainage Plan 4 C 3 Yard Piping 5 C 4 Lift Station 1 Site Plan 6 C 5 Lift Station 2 Site Plan 7 C 6 Lift Station 3 Site Plan 8 C 7 Lift Station 4 Site Plan 9 D 1 Bar Screen Area Demolitin 10 D 2 Grit Chamber Area Demolition Structural 11 S 1 Grit Foundation Plan 12 S 2 Grit Intermediate Channel Plan 13 S 3 Grit Deck Plan 14 S 4 Lift Station 1 Structure 15 S 5 Lift Station 2 Structure 16 S 6 Lift Station 3 Structure 17 S 7 Lift Station 4 Structure 18 S 8 Sections 19 S 9 Sections 20 S 10 Details Process Mechanical 21 M 1 Overall Headworks Plan 22 M 2 Bar Screen Area Plan 23 M 3 Bar Screen Area Sections 24 M 4 Grit Area Plan 25 M 5 Grit Area Sections 26 M 6 Grit Area Sections 27 M 7 Grit Classifier/Wash Area Plan and Section 28 M 8 Lift Station 1 Plans & Details 29 M 9 Lift Station 2 Plans & Details 30 M 10 Lift Station 3 Plans & Details 31 M 11 Lift Station 4 Plans & Details 32 M 12 Sections 33 M 13 Details Electrical 34 E 1 Legend 35 E 2 Abbreviations 36 E 3 Overall Site Plan 37 E 4 Primary Elec Bldg Plan 38 E 5 Headworks Single Line Diagram 39 E 6 Bar Screen Area Power Plan 40 E 7 Grit Tank Area Plan A - 1

10 CITY OF BAYTOWN CENTRAL DISTRICT WWTP FEE ESTIMATE FOR ENGINEERING SERVICES FOR GRIT IMPROVEMENTS ATTACHMENT A LIST OF DRAWINGS No. Dwg No. DRAWING DESCRIPTION 41 E 8 Grit Classifer/Washer Area Plan 42 E 9 Aeration Basin 1 Plan 43 E 10 Aeration Basin 2 Plan 44 E 11 Final Clarifier 1 Plan 45 E 12 Final Clarifier 2 Plan 46 E 13 Chlorine Contact 47 E 14 Quiscent Basin 48 E 15 Outlet 49 E 16 Thickener 50 E 17 Sludge Pump Station 51 E 18 Aerobic Digesters 52 E 19 Nonpotable System 53 E 20 Blowers 54 E 21 Belt Press System 55 E 22 Plant Recycle Pump Station 56 E 23 Remote Site LS 1 57 E 24 Remote Site LS 2 58 E 25 Remote Site LS 3 59 E 26 Remote Site LS 4 60 E 27 Admin Bldg Plan 61 E 28 Control Schematics 62 E 29 Control Schematics 63 E 30 Control Schematics 64 E 31 Control Schematics 65 E 32 Control Schematics 66 E 33 Control Schematics 67 E 34 Panelboard Schedule 68 E 35 Panelboard Schedule 69 E 36 Conduit Schedule 70 E 37 Conduit Schedule 71 E 38 Conduit Schedule 72 E 39 Conduit Schedule 73 E 40 Conduit Schedule 74 E 41 Conduit Schedule 75 E 42 Details 76 E 43 Details Instrumentation 77 I 1 Legend 78 I 2 WWTP Network Architecture 79 I 3 Remote Sites Network Architecture 80 I 4 Security Block Diagram 81 I 5 PID Bar Screens 82 I 6 PID Headworks 83 I 7 PID Aeration Basins 84 I 8 PID Final Clarifiers / RAS A - 2

11 CITY OF BAYTOWN CENTRAL DISTRICT WWTP FEE ESTIMATE FOR ENGINEERING SERVICES FOR GRIT IMPROVEMENTS ATTACHMENT A LIST OF DRAWINGS No. Dwg No. DRAWING DESCRIPTION 85 I 9 PIDs Chlorine Contact 86 I 10 PID Quiscent Basin 87 I 11 PID Outlet 88 I 12 PID Thickener 89 I 13 PID Sludge Pump Station 90 I 14 PID Aerobic Digesters 91 I 15 PID Nonpotable System 92 I 16 PID Blowers 93 I 17 PID Belt Press System 94 I 18 PID Plant Recycle Pump Station 95 I 19 PID Remote Site LS 1 96 I 20 PID Remote Site LS 2 97 I 21 PID Remote Site LS 3 98 I 22 PID Remote Site LS 4 99 I 23 Installation Details I 24 Installation Details I 25 Control Panel Elevations I 26 Control Panel Elevations I 27 Control Panel Elevations 3 A - 3