CITY AND COUNTY OF SAN FRANCISCO PUBLIC UTILITIES COMMISSION WASTEWATER ENTERPRISE

Transcription

1 San Francisco Water Power Sewer CITY AND COUNTY OF SAN FRANCISCO PUBLIC UTILITIES COMMISSION WASTEWATER ENTERPRISE Seivices of the San Francisco Public Utilities Commission Signatures: OCEANSIDE WATER POLLUTION CONTROL PLANT CONTRACT NO. ADDENDUM NO. 1 oy Gullette, P.E. f rian Carlomagno, P.E. Project Engineer Contract Standards Engineer Project Manager r Date: May 18, 2018 CITY AND COUNTY OF SAN FRANCISCO PUBLIC UTILITIES COMMISSION Signature: -711 JO NA WONG, Mi95GER ENGINEERING MANAGEMENT BUREAU NOTICE TO PARTIES HOLDING SPECIFICATIONS AND CONTRACT PROPOSAL: Bidders are hereby advised that the Bid Opening date has been extended. Bids will be received and publicly read no later than Thursday, June 21, 2018, at 2:00 p.m., at 525 Golden Gate Avenue, 3rd Floor - Tuolumne Room, San Francisco, CA The Contract Documents of the contract named above are hereby amended as follows: Specifications Section Advertisement For Bids Section Table of Contents DELETE the first sentence in the first paragraph and REPLACE WITH "Sealed bids will be received at 525 Golden Gate Avenue, 3rd Floor - Tuolumne Room, San Francisco, CA 94102, until 2:00 P.M. on 6/21/2018." Section , pages 3 and 4: DELETE " QUALITY CONTROL" ADD " SHEET METAL FLASHING AND TRIM" Template Version p Page 1 of 11

2 after FLUID-APPLIED MEMBRANE ROOFING ADD STAINLESS STEEL DOORS AND FRAMES before FIBERGLASS REINFORCED PLASTIC (FRP) DOORS AND FIBERGLASS RESIN TRANSFER MOLDED DOOR FRAMES REVISE (Rev. 1) FIXED LOUVERS ADD GYPSUM BOARD SHAFT WALL ASSEMBLIES before COATING AND LINING ADD PAINTING after COATING AND LINING Section Instruction to Bidders Section Exhibit A Clean Water State Revolving Fund (SRF) Contract Requirement, Davis Bacon Prevailing Wage Rate Section Agreement Form Section , Page 5, Article 1.06C.5.b: DELETE subparagraph b in its entirety and REPLACE WITH b. Not Used. DELETE Section Exhibit A, Davis Bacon Prevailing Wage Rate (General Decision Number CA /06/2018 CA29) in its entirety and REPLACE WITH Section Exhibit A (Rev. 1) Davis Bacon Prevailing Wage Rate (General Decision Number CA /04/2018 CA29) Section , Page 2, Article 2.01: DELETE Article 2.01 in its entirety and REPLACE WITH 2.01 Completion Dates. As set forth in Section , the Work shall be Substantially Complete within seven-hundred thirty (730)-consecutive calendar days, beginning with and including the official date of Notice-To-Proceed as established by the GENERAL MANAGER, and Finally Complete in accordance with Article 9 of the General Conditions (Section ) within ninety (90)-consecutive calendar days after the date the CITY issues a Notice of Substantial Completion. Page 2 of 11

3 Section Contract Time and Liquidated Damages Section , Page 3, Article 1.04B.12: DELETE subparagraph 12 in its entirety and REPLACE WITH 12. Section Summary of Work, the Contractor shall pay three-thousand dollars ($3,000/day) for each day, it has been determined that the Contractor-caused an unscheduled and/or unaccepted shutdown for associated mitigation costs for City equipment and forces to mitigate potential damages to assets and property resulting in the Contractor-caused shutdown will result in Contractor payment of Liquidated Damages. Section Price and Payment Procedures Section , Page 10, Bid Item 16: DELETE the description for Bid Item 16 Selective Mechanical and HVAC Demolition Work in its entirety and REPLACE WITH it with Payment for all selective mechanical and HVAC demolition work based on OSP building project work areas as follows: OSP 620: Selective mechanical demolition includes selective gas purifier / digester gas process piping and support demolition and disposal to accommodate the installation of the new work, shall include material, labor, and equipment to perform the Work, as shown on the MD-Drawings and specified in Divisions 22 and 40 technical specifications, and elsewhere herein. OSP 741: Selective mechanical demolition includes selective demolition includes removal and disposal of the gas holder / digester gas holder tank assembly (including stairs, handrails, piping and instrumentation), and appurtenances, removal and disposal of compressed gas receiver assembly, piping and appurtenances, removal and disposal of 4-inch blended gas piping, manifold and valve assembly, selective salvage of existing equipment and instrumentation, including but not limited to; pressure/vacuum relief assemblies, flame arrest assemblies, pressure indicating transmitters/sensor assemblies, tank level instrument assemblies. Selective concrete patching and repairs, removal and disposal of 14- inch digester gas piping, supports, valves and manifold assemblies, utility protection of natural gas pressure reducing valve and pipe assemblies and appurtenances Work, as shown on the MD-Drawings and specified in Divisions 03, 22 and 40 technical specifications, and elsewhere herein. See Bid Item Page 3 of 11

4 15 for Selective Structural Demolition items. OSP 800: Selective mechanical demolition includes removal and disposal of digester gas trains; including but not limited to; co-generation engines, exhaust heat recovery silencers, critical silencers, digester gas piping, fittings and valves, equipment and pipe metallic supports, boiler expansion tank assembly, boiler exhaust assemblies, air receiver tank assemblies, process heat exchangers, jacket water cooling heat exchangers, plumbing systems, compress air systems, salvage boiler assemblies and gas chromatograph / gas analyzer assembly, remove and dispose of liquid ring compressor assemblies, piping, fittings, and valve / manifold assemblies, remove and dispose of coalescing filter separator assemblies, remove and dispose of digester gas booster assemblies, remove and dispose of natural gas diluting/boosting assemblies, salvage flame arrestor assembly, pressure indicating transmitter/sensor assemblies, motorized control valve assemblies, and fixed gas monitoring (H2S) instrumentation, field purging and process pipe welding, concrete wall patch repairs, and related Work, as shown on the MD-Drawings and specified in Divisions 03, 22 and 40 technical specifications, and elsewhere herein. OSP 800: Selective HVAC demolition includes removal and disposal of ventilation equipment, associated duct work, appurtenances and supports, and related Work, as shown on the HD-Drawings and specified in Divisions 03, 23 and 40 technical specifications, and elsewhere herein. Payment for selective mechanical and HVAC demolition at OSP building work areas OSP 620, OSP 741 and OSP 800 shall include material, labor, and equipment to perform the Work, as shown on the MD- and HD-Drawings and specified in Divisions 03, 22, 23 and 40 of the technical specifications, and elsewhere herein at the Lump Sum bid price listed in the Schedule of Bid Prices. Section Quality Control Section Sheet Metal Flashing and Trim DELETE Section in its entirety. ADD new Section , attached herewith. Page 4 of 11

5 Section Stainless Steel Doors and Frames Section Fixed Louvers Section Gypsum Board Shaft Wall Assemblies ADD new Section , attached herewith. DELETE Section in its entirety and REPLACE WITH Section (Rev. 1), attached herewith ADD new Section , attached herewith. Section Painting Section Raceway and Boxes for Electrical Systems ADD new Section , attached herewith. Section , Page 2, Article 2.02A: DELETE paragraph A in its entirety. Section , Page 9, Article 3.02A: DELETE paragraph A in its entirety and REPLACE WITH A. For outdoor, non-hazardous service locations, provide PVC-coated RGS conduit except as follows and unless indicated otherwise: 1. For indoor, non-hazardous service locations, provide RGS conduit. 2. For corrosive or wet areas, provide PVC-coated RGS conduit. 3. In Class I, Div I or Div II hazardous locations, provide PVC-coated RGS conduit. Section Motor Control Centers Section , Page 4, Article 1.03: ADD Article 1.03 as follows: 1.03 QUALITY ASSURANCE 1. The Manufacturer of equipment specified herein shall be regularly engaged in the engineering design, manufacturer, operation, maintenance, spare parts, and manufactures services for a minimum of fifteen (15)-years. 2. The Manufacturer shall have local, full-service manufacturer certified equipment support services and Page 5 of 11

6 equipped service facility where they repair and test electrical systems, within one-hundred (100)-miles of the project site with manufacture certified staff and equipment required to troubleshoot, maintain, service and repair electrical equipment specified herein within a twenty-four (24)-hour response time, seven (7)-days a week all year around. Section , Page 12, Article 2.08: DELETE Article 2.08 in its entirety and REPLACE WITH MCC MANUFACTURER, OR EQUAL A. Allen-Bradley B. ABB Section Variable Frequency Motor Controllers Section , Page 8, Article 2.05: DELETE Article 2.05 in its entirety and REPLACE WITH 2.05 MANUFACTURERS, OR EQUAL A. Allen-Bradley B. ABB Section Diesel-Engine-Driven Generator Sets Section , Page 2, Article 1.03B.4: DELETE subparagraph 4 in its entirety and REPLACE WITH 4. Emissions Tier 3 Compliance Section , Page 19, Article 3.02: ADD new paragraph E as follows: E. The Contractor shall obtain and comply with all necessary permits from local, state, and federal agencies and fire districts for the installation of the diesel fuel tank. All license and permit fees shall be borne by the Contractor. Section Aboveground Fuel-Storage Tanks Section , Page 8, Article 2.01O: DELETE paragraph O in its entirety and REPLACE WITH O. Appurtenances: Nozzles as specified below. Location of Nozzles shall be as shown in the drawings. Page 6 of 11

7 1. (1) Storage Tank fill port with: a. (1) 4-inch fill pipe 2. (1) 1-inch leak detection connection 3. (1) 1-inch level switch connection 4. (1) 1-inch level transmitter connection 5. (1) 4-inch fuel storage tank vent 6. (1) 6-inch fuel storage tank emergency vent 7. (2) 4-inch spare connection ports 8. (2) 2-inch spare connection ports Section , Page 9, Article 2.03: DELETE Article 2.03 in its entirety. Section Gas Analysis Process Measurement Devices Section , Page 3, Article 2.02D.1: DELETE subparagraph D in its entirety and REPLACE WITH D. Manufacturers: 1. Draeger model Polytron with a sensor for each gas and with calibration/test kit, including calibration gases. Section Process Control Software Section , Page 2, Article 2.01A: DELETE paragraph A in its entirety and REPLACE WITH A. The application software shall be the latest versions of Invensys Wonderware, running on the latest updated version of Microsoft Windows operating system. Section Cogeneration Engine System Section , Page 32, Article 1.11A.1.g: DELETE subparagraph g in its entirety and REPLACE WITH g. Methane: 50 to 65 percent Section , Page 38, Article 2.01B: DELETE paragraph B in its entirety and REPLACE WITH B. The engine-generators shall be a factory assembled unit, specifically designed and equipped for continuous cogeneration operation on low BTU digester gas, natural gas, Page 7 of 11

8 and blended digester gas and natural gas. The engine and generator shall be directly connected, shall be free from injurious torsional or other vibration that results in static deflections in excess of 6-mils. The engine-generator s shall be mounted on a heavy steel sub-base. Section , Page 43, Article 2.04O.1: DELETE subparagraph 1 in its entirety and REPLACE WITH 1. GE Jenbacher JMS 312, Caterpillar CG132-12, Siemens SGE-36SL or approved equal Section , Page 45, Article 2.05: ADD new paragraph J as follows: J. CH4 Compensation 1. Fuel blending shall be controlled by the engine control system. The proportion of the gases shall be programmed into the engine control system. A gas analyzer shall be provided to monitor the mixed gas methane content and provide this information to the engine controller. A single gas analyzer may service two or more engine generator sets. 2. Each engine fuel system shall be capable of maintaining continuous safe engine operation while adapting to fluctuations in methane (CH4) content due to digester generated gas. 3. Each engine fuel system shall include its own methane sensing device that shall be capable of measure methane percentage by volume between the range of 40%-100% at a minimum. 4. Each engine controller shall be configured to monitor real time CH4 status. Reading status shall trigger on configurable onboard alarms of each engine and drive automatic operation controls if selected. CH4 readings shall be configurable to be output to plant DCS monitoring system. 5. Dual Gas Operation (natural gas blending) a. The system shall blend two gasses: type A (digester gas) and type B (natural Page 8 of 11

9 gas). The CH4 compensation device shall provide a signal to the controller denoting the methane content of the mixed gases. The controller shall adjust the engine settings to accommodate starting and operation on the blended fuel based on the methane content information provided by the CH4 sensor. 6. Make and Model a. Multi-Engine Fuel analyzer: Union Instruments INCA 3011 or approved equal. b. Individual Fuel Train CH4 Sensor: BlueSens BCP-CH4 or approved equal. Drawings 800-MD MD MD MD SD S S A A A A M-6005 DELETE 800-MD-0001 in its entirety and REPLACE WITH 800-MD-0001 (REV 1). DELETE 800-MD-1001 in its entirety and REPLACE WITH 800-MD-1001 (REV 1). DELETE 800-MD-1002 in its entirety and REPLACE WITH 800-MD-1002 (REV 1). DELETE 800-MD-1004 in its entirety and REPLACE WITH 800-MD-1004 (REV 1). DELETE 820-SD-3001 in its entirety and REPLACE WITH 820-SD-3001 (REV 1). DELETE 820-S-1002 in its entirety and REPLACE WITH 820-S-1002 (REV 1). DELETE 820-S-3001 in its entirety and REPLACE WITH 820-S-3001 (REV 1). DELETE 000-A-5001 in its entirety and REPLACE WITH 000-A-5001 (REV 1). DELETE 820-A-1001 in its entirety and REPLACE WITH 820-A-1001 (REV 1). DELETE 820-A-2001 in its entirety and REPLACE WITH 820-A-2001 (REV 1). DELETE 820-A-4001 in its entirety and REPLACE WITH 820-A-4001 (REV 1). DELETE Drawing 000-M-6005 in its entirety and Page 9 of 11

10 800-M M M E E E E E E E E-1001 REPLACE WITH Drawing 000-M-6005 (REV 1). DELETE Drawing 800-M-1001 in its entirety and REPLACE WITH Drawing 800-M-1001 (REV 1). DELETE Drawing 821-M-1003 in its entirety and REPLACE WITH Drawing 821-M-1003 (REV 1). DELETE Drawing 821-M-3001 in its entirety and REPLACE WITH Drawing 821-M-3001 (REV 1). DELETE Drawing 008-E-6009 in its entirety and REPLACE WITH Drawing 008-E-6009 (REV 1). DELETE Drawing 008-E-6106 in its entirety and REPLACE WITH Drawing 008-E-6106 (REV 1). DELETE Drawing 008-E-6110 in its entirety and REPLACE WITH Drawing 008-E-6110 (REV 1). DELETE Drawing 008-E-6118 in its entirety and REPLACE WITH Drawing 008-E-6118 (REV 1). DELETE Drawing 008-E-6204 in its entirety and REPLACE WITH Drawing 008-E-6204 (REV 1). DELETE Drawing 011-E-6001 in its entirety and REPLACE WITH Drawing 011-E-6001 (REV 1). DELETE Drawing 800-E-6001 in its entirety and REPLACE WITH Drawing 800-E-6001 (REV 1). DELETE Drawing 820-E-1001 in its entirety and REPLACE WITH Drawing 820-E-1001 (REV 1). Attachments: Specifications: 1. Section Exhibit A (Rev. 1) 2. Section Section Section (Rev. 1) 5. Section Section Drawings: MD-0001 (REV 1): GENERAL DEMOLITION NOTES MD-1001 (REV 1): OSP 800 FIRST FLOOR PLAN MD-1002 (REV 1): OSP 800 FIRST FLOOR PLAN AREA A - DEMOLITION MD-1004 (REV 1): OSP 800 FIRST FLOOR PLAN AREA C DEMOLITION SD-3001 (REV 1): OSP 820 BOILER BUILDING SECTION I DEMO S-1002 (REV 1): OSP 820 BOILER BUILDING ROOF PLAN S-3001 (REV 1): OSP 820 BOILER BUILDING SECTIONS AND DETAILS A-5001 (REV 1): DOOR AND LOUVER SCHEDULES Page 10 of 11

11 A-1001 (REV 1): OSP 820 BOILER BUILDING 1ST FLOOR PLAN A-2001 (REV 1): OSP 820 BOILER BUILDING - EXTERIOR ELEVATIONS A-4001 (REV 1): OSP 820 BOILER BUILDING INTERIOR ELEVATIONS M-6005 (REV 1): PIPE SCHEDULE M-1001 (REV 1): OSP 800 FIRST FLOOR PLAN M-1003 (REV 1): FUEL STORAGE AREA PLAN M-3001 (REV 1): FLARE BUILDING SECTION E-6009 (REV 1): SS-5 REMOTE OPERATOR PANEL E-6106 (REV 1): CABLE SCHEDULE E-6110 (REV 1): CONDUIT SCHEDULE E-6118 (REV 1): CONDUIT SCHEDULE E-6204 (REV 1): CONDUIT DEVELOPMENT E-6001 (REV 1): 12KV MAIN PLANT SWITCHGEAR MPS SINGLE LINE DIAGRAM E-6001 (REV 1): ENERGY RECOVERY BUILDING SS-5 SINGLE LINE DIAGRAM E-1001 (REV 1): BOILER BUILDING POWER PLAN END OF ADDENDUM NO. 1 Page 11 of 11