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Home My WebLink About04.a. Review draft to award of a construction contact for the Pump Station Upgrades Phase 2A, DP 8457, and increase three existing agreements for construction support services Page 1 of 16 Item 4.a. CENTRAL SAN BOARD OF DIRECTORS . , , . POSITION PAPER . , 0 DRAFT MEETING DATE: AUGUST 31, 2022 SUBJECT: REVIEW DRAFT POSITION PAPER TO (1) AWARD A CONSTRUCTION CONTRACT I N THE AMOUNT OF $27,606,000 TO C. OVERAA& CO., THE LOWEST RESPONSIVE AND RESPONSIBLE BIDDER, FOR THE PUMP STATION UPGRADES, PHASE 2A, DISTRICT PROJECT 8457; (2)AUTHORIZE THE GENERAL MANAGER TO AMEND THREE EXISTING PROFESSIONAL ENGINEERING SERVICES AGREEMENTS TO INCLUDE CONSTRUCTION SUPPORT WITH THE FOLLOWING CONSULTANTS IN AMOUNTS NOT TO EXCEED: • CAROLLO ENGINEERS, INC. FOR $1.8 MILLION, INCREASING THE AGREEMENT TO $2 MILLION; • HDR, INC. FOR $600,000, INCREASING THE AGREEMENT TO $790,000; AND • ARCSINE ENGINEERING, INC. FOR $500,000, INCREASING THE AGREEMENT TO $650,000; AND (3) FIND THE PROJECT IS EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITYACT SUBMITTED BY: INITIATING DEPARTMENT: KEITH GELLERMAN, ASSOCIATE ENGINEER ENGINEERING AND TECHNICAL SERVICES- CAPITAL PROJECTS REVIEWED BY: SASHA MESTETSKY, SENIOR ENGINEER EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER ISSUE On August 11, 2022, six bids were received for the construction of the Pump Station Upgrades, Phase 2A, District Project 8457 (Project). The Board of Directors (Board) must award the construction contract or reject bids within 50 days of the bid opening. Board authorization is also required for the General Manager to amend a professional engineering services agreement above $200,000. BACKGROUND The Fairview and Maltby Pumping Stations were constructed in 1969 and are the second and third of the three pumping stations in series, respectively, with the Martinez Pumping Station being the first station to convey wastewater from the Martinez area to the treatment plant. The Fairview Pumping Station (Fairview) is situated in an industrial area adjacent to the PBF Refinery (formerly Shell Refinery) at 2001 Marina August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 4 of 25 Page 2 of 16 Vista, while the Maltby Pumping Station (Maltby) is in an isolated area accessible via a gravel road at 990 Central Avenue in Martinez. These pumping stations are nearly identical in design and features similar drywell or wetwell configurations. The drywell consists of a steel structure packaged as a fully functional station manufactured by the Mundix Company. The existing package houses the station components in a single structure rather than separate structures. The condition of the drywell steel has visible corrosion on the interior floor and lower wall surfaces which poses major apprehension in reusing the existing steel. I n addition, drywell access is via a narrow circular hatch which makes for Operations and Maintenance (O&M) access and egress very difficult. Both stations have undergone limited upgrades, with the most recent in 1999. Since 2010, Central San staff has evaluated and monitored Fairview and Maltby for several deficiencies, including the corrosion stated above, arc-flash levels, and electrical equipment conditions. A study identified that the existing electrical overcurrent breakers will not reliably trip for a fault when fed by the emergency generators. It was also identified that the generator overcurrent protection limits the loading of the generator, and there are vulnerabilities at certain load conditions. These pumping stations have shown multiple concerns, including aging assets, of which many are the electrical gear, potential risk of flooding due to sea level rise at Maltby, and maintenance accessibility issues for O&M staff. The Project is included in the Capital Improvements Budget titled Pump Station Upgrades, Phase 2, District Project 8457. V.W. Housen and Associates (VWHA) is the original designer of the Pump Station Upgrades, Phase 1 and hired for Phase 2. During the Phase 2 final design, VWHA notified the District that the project manager and lead engineers would retire or leave the firm. HDR, Engineering, Inc. (HDR) and ArcSine Engineering (ArcSine), electrical, were major subconsultants to VWHA, and they agreed to continue and take the lead of the final design and move forward with Phase 2 under the authorized budget amount. Due to market conditions and packaging the work for potential cost savings, staff worked with HDR and ArcSine to split the Phase 2 work into two projects: Phase 2A includes Fairview and Maltby while Phase 2B consists of Martinez. Overall, the scope of work for Phase 2A mainly consists of the installation of two (2) new 12.4 MGD sewage pumping stations and includes, but not limited to, heavy civil, mechanical, electrical, instrumentation, and controls, installation of new PG&E services, demolition and decommissioning of the existing pumping stations. A project location map is shown in Attachment 1. The new Fairview and Maltby stations required the acquisition of land adjacent to each property. The Fairview site required a land swap with PBF, which is in the process of being finalized. The Maltby site required the acquisition of a portion of a privately-owned parcel located to the north of the existing site. Due to topography and land use, other properties adjacent to Maltby were less desirable. Staff has acquired the additional properties for the Project. Staff, HDR, and ArcSine prepared the plans and specifications for the Project. This Project was advertised on June 30 and July 7, 2022. Six sealed bids ranging from $27,606,000 to $34,228,000 were received and publicly opened on August 11, 2022. The Engineer's estimate for the construction of the Project is $35,400,000. Capital Projects conducted a technical and commercial review of the bids and determined that C. Overaa & Co. (Overaa) is the lowest responsive and responsible bidder. A summary of bids received is shown in Attachment 2. Bidders were very competitive for the Project as the proposed work is well sequenced considering the current bidding environment and availability of major equipment. Staff and the consultants spent significant effort on the project constructability and advertising the electrical work to help drive better pricing, as evident with all bidders being below the engineer's estimate. Capital Projects staff will provide oversight of the construction management (CM)which includes the CM team (Carollo), design engineers (HDR and ArcSine), and contractor(Overaa)for the Project. Operations August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 5 of 25 Page 3 of 16 staff will support the Project as required to coordinate shutdowns and provide any other support needed to operate the stations. Public outreach with the City of Martinez, along with public relations with the impacted businesses and residents, will be coordinated through Central San's Communication Services group. Carollo is planned to be the day-to-day contact with the contractor and provide CM services that include documenting contract work, reviewing schedules, and safety oversight. HDR and ArcSine will assist with submittal reviews, contractor requests for information, and design clarifications. All consultants were hired under a formal competitive selection process that is compliant with the District's policies and procedures for professional engineering services. California Environmental Quality Act (CEQA) Staff has concluded that these projects are exempt from CEQA under Central San's CEQA Guidelines Section 15302 since they involve replacement of existing public facilities at substantially the same location and with the same purpose as the public facilities being replaced. The projects are also exempt under Central San's CEQA Guidelines Section 15061(b)(3), since it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment. This certainty is based on Central San's past experience with numerous pumping station construction projects of this nature, its long familiarity with the project sites, the results of recent biological and cultural resources technical studies, Central San's impact-limiting construction specifications, and the impact-limiting components of the project description. Central San's specifications are standardized general and special conditions that are made part of the project to address environmental considerations, as well as compliance with applicable federal, state, county, district, municipal and local laws, ordinances, orders, and regulations.Approval of this project will establish the Board of Directors' independent finding that this project is exempt from CEQA. ALTERNATIVES/CONSIDERATIONS The Board could consider the following alternatives or provide other directions: 1. Staff's approach of supplementing labor with consultants, such as the services being proposed with Carollo, could be rejected by the Board. Capital Projects is not currently staffed at a level to support this construction project.Additional staff, up to three fulltime personnel, would have to be considered to perform construction management, general inspection, and resident engineering. Specialty inspection would need to be outsourced since staff does not have the qualifications to perform specialty-type work. 2. Reject all bids, which is not recommended. This Project will address the deficient and aging infrastructure at the pumping stations and provide long-term reliability and operational performance of the electrical systems and backup emergency equipment. FINANCIAL IMPACTS The total estimated project cost is $38,000,000, which includes staff time, consultant costs, land acquisition, construction contract, contingency, construction management, and other costs detailed in Attachment 3. Phase 2 was included in the Fiscal Year FY 2022-23 Budget on page 212 with an estimated budget of$47,950,000, which includes the Pump Station Upgrades, Phase 2B (Martinez) project. The remaining budget, approximately$10,000,000, is being reserved for the renovation of the Martinez Pumping Station. COMMUNITY OUTREACH Central San has held multiple meetings with the City of Martinez to answer any questions or concerns about the Project.Additional notifications will be provided to all impacted residents and businesses after the award of the Project and before construction begins. August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 6 of 25 Page 4 of 16 COMMITTEE RECOMMENDATION The Engineering and Operations Committee reviewed this project at its meeting on August 31, 2022, and recommended RECOMMENDED BOARD ACTION Staff recommends the following Board actions: 1. Find that the Project is exempt from CEQA; 2. Award a construction contract in the amount of $27,606,000 to C. Overaa & Co., the lowest responsive and responsible bidder, for the Pump Station Upgrades, Phase 2A, District Project 8457; 3. Authorize the General Manager to execute the Contract Documents subject to submittal requirements and include up to a 10-percent contingency; and 4. Authorize the General Manager to amend three existing professional engineering services agreements to include construction support with the following consultants in amounts not to exceed: • Carollo Engineers, Inc. for$1.8 million, increasing the agreement to $2 million; • HDR, Inc. for$600,000, increasing the agreement to $790,000; and • ArcSine Engineering, I nc. for$500,000, increasing the agreement to $650,000. Strategic Plan re-In GOAL ONE: Customer and Community Strategy 1—Deliver high-quality customer service GOAL TWO: Environmental Stewardship Strategy 1 -Achieve compliance in all regulations, Strategy 4- Identify and advance sustainability initiatives, including reducing energy usage and emissions GOAL FIVE: Safety and Security Strategy 1 - Reduce and eliminate ricks of injury or illness, Strategy 2- Protect Personnel and assets from threats and emergencies GOAL SIX: Infrastructure Reliability Strategy 2- Execute long-term capital renewal and replacement program ATTACHMENTS: 1. Project Location Map 2. Summary of Bids 3. Post Bid/P reconstruction Estimate 4. Presentation August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 7 of 25 Page 5 of 16 Pumping Station Upgrades, Phase 2A District Project 8457 Map Date:8/23/2022 Detail Area Martinez .:1 �ate�rOnttZd Concord Marina-I Vista Waterfront Rd Ave Fairview �lid"e116r Pleasant Hill •,, Pumping Station y Q � L c Maltby Pumping Pacheco-Blvd ��,�\ Station a� Q' o / o Pacheco-8tvd .:1 �e�a y �E �o o \E 4� m CIO O' N v = Q Oma, N 62 N g° o ,fV Gertie • Project Location QTreatment Plant Boundary 0 1,000 2,000 Note: ,r Map Displayed in North American Datum of 1983 Attachment Central San data as of August 2022. 1 1 Feet California State Plane,Zone III FIPS 0403,US Feet 1 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 8 of 25 Page 6 of 16 ATTACHMENT 2 PUMP STATION UPGRADES, PHASE 2A DISTRICT PROJECT 8457 SUMMARY OF BIDS PROJECT NO.: 8457 NO. OF ADDENDA: 3 DATE/TIME: AUGUST 11, 2022/2:00 PM PROJECT NAME: PUMP STATION UPGRADES, PHASE 2A PROJECT MANAGER: KEITH GELLERMAN PROJECT LOCATION: 5019 IMHOFF PLACE, MARTINEZ CA ENGINEER'S ESTIMATE: $35,400,000 NO. BIDDER BID PRICE 1 C. Overaa & Co. $27,606,000 2 GSE Construction Company, Inc. $27,862,100 3 Anvil Builders, Inc. $29,467,650 4 Mountain Cascade, Inc. $30,588,000 5 SMCI/Obayashi Joint Venture $33,582,000 6 Steve P. Rados, Inc. $34,228,000 BIDS OPENED BY: /s/Katie Young DATE: August 11, 2022 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 9 of 25 Page 7 of 16 ATTACHMENT 3 PUMP STATION RENOVATIONS, PHASE 2A DISTRICT PROJECT 8457 POST-BID/PRECONSTRUCTION ESTIMATE % Of Item Description Amounts Construction No. Cost 1. CONSTRUCTION a. Construction Contract $27,606,000 b. 10% Contingency $2,761,000 c. Permits (Martinez, County, DTSC, BAAQMD, etc.) $83,000 SUBTOTAL- CONSTRUCTION COST $30,450,000 100% 2. CONSTRUCTION MANAGEMENT a. District Forces - Project Management (Capital Project Staff) $650,000 - Public Relations/Right-of-Way $50,000 - Operations $150,000 b. Consultants - Construction Management/Inspection (Carollo) $1,800,000 - ESDC (HDR and ArcSine) $1,100,000 - Material Testing/Specialty Inspection $350,000 SUBTOTAL- CONSTRUCTION MANAGEMENT $4,100,000 13.5% 3. PREBID EXPENDITURES a. Engineering (Design, Survey, Drafting)* $3.450,000 SUBTOTAL- PREBID EXPENDITURES $3.450,000 11.3% 4. TOTAL ESTIMATED PROJECT COST $38,000,000 * Includes the design of the Martinez Pump Station (Phase 213) August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 10 of 25 Page 8 of 16 Attachment 4 August 31,2022 j PUMP STATION UPGRADES, PHASE 2A DISTRICT PROJECT 8457 Engineering and Operations L u Committee Edgar J.Lopez,P.E. j, 0 Capital Projects Division Manager 1 Keith Gellerman,P.E. Associate Engineer 1 1 M rtinezarti— ' Agenda P pStaN.n - :a cent. ntra c a "Sancta District Fairview \I i Pump Station \ � \ 1 Project Background and Drivers Concord Maltby Concord.,in 2. Project Improvements Pomp Station Al Metering station pleHllj nl /(I\ 3. Bid Results 4. Project Budget and Schedule � 5. Recommendations \ Flush-Kleen rump Station aayette Creekt Orinda Crossroads v �.. Pump Station Ori nda Mara" giamc Pump Station \ /Moraga ---- Nohow Ilk, 2 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 11 of 25 1 Page 9 of 16 Project Background and Drivers ftftwr'. 3 0 e Pump Station (PS) Upgrades, Pe�aH, sv°° Phase 2A rye, Focuses on the Martinez Pumping Stations: Berkeley Eh onnda 1. Fairview CAIand 2. Maltby N` CCCSD P--,Sw,— Note: Phase 2B includes Martinez Pumping Station only. 4 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 12 of 25 2 Page 10 of 16 Fairview and Maltby History Pumping Year Major Work Completed since Original Station • Construction 1 1993: New variable frequency drives and Fairview 1969 standby generator 1999: New pumps 2016: Rebuilt pumps 1996: New standby generator Maltby 1969 1999: New pumps 2016: Rebuilt pumps 1 5 Project Drivers Aging Assets, Reliability, and Sustainability Corroded steel pumping station structure Improve electrical safety and reliability as recommended in the Arc Flash Study Replace deteriorating piping,gates, and valves , Provide safe access to electrical equipment for Operations and Maintenance ; Provide long-term corrosion protection y Provide resiliency from flooding Improve controls and communications between !� pumping stations and the treatment plant " Fairview PS Maltby PS slim 6 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 13 of 25 3 Page 11 of 16 Project Improvements Fairview Pumping Stations_ ._- --� Improvements New Improvements: • C Concrete structures Electrical, instrumentation & > controls(EI&C) equipment - PG&E service Dry-pit submersible pumps O w� Diesel standby generator A 8 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 14 of 25 4 Page 12 of 16 Maltby Pumping Station Improvements " New Improvements: ; �l i ---, - =,::•.�..� ' Concrete structures - EI&C equipment °y ` _ — --- -- , PG&E service Dry-pit submersible pumps - Diesel standby generator Flood protection a R - 1 9 Bid Results 1 10 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 15 of 25 5 Page 13 of 16 Bid Results • Engineer's Estimate: $35 Million (M) • Six (6) bids received • Average Bid: $30.6 M • Low Bidder: C. Overaa & Co. with a bid of$27,606,000 No. Bidder Total Bid I C. Overaa& Co. 527,608,000 2 GSE Constriction Co. Inc. $27,862.100 3 Anvil Builders Inc. 529,467,650 4 Mauntain Cascade, Inc. $30,588.004 5 SMCIIObayashi Joint Venture $33.582.000 6 Steve P_ Rados, Inc_ 534,228,000 1 11 Project Budget and Schedule 1 12 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 16 of 25 6 Page 14 of 16 Total Project Costs Of Item Description Amounts Construction No. Cost 1. CONSTRUCTION a.Construction Contract $27,606,000 b.10%Contingency $2,761,000 c. Permits(Martinez,County,DTSC,BAAQMD,etc.) $83,000 SUBTOTAL-CONSTRUCTION COST $30,450,000 100% 2. CONSTRUCTION MANAGEMENT a.District Forces -Project Management(Capital Project Staff) $650,000 -Public Relations/Right-of-Way $50,000 -Operations $150,000 b.Consultants -Construction Management/Inspection(Carollo) $1,800,000 -ESDC(HDR and ArcSine) $1,100,000 -Material Testing/Specialty Inspection $350,000 SUBTOTAL-CONSTRUCTION MANAGEMENT $4,100,000 13.5% 3. PREBID EXPENDITURES a.Engineering(Design,Survey,Drafting)` $3.450.000 SUBTOTAL-PREBID EXPENDITURES $3.450.000 11.3 4. TOTAL ESTIMATED PROJECT COST $38,000,000 •Includes the design of the Martinez Pump Station(Phase 2B) 1 13 Project Schedule Year 2022-2025 my-Sep Nov by Oct 2022 2022 2025 • Bid/Award Construction Completion NTP 14 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 17 of 25 7 Page 15 of 16 Recommendations 1 15 Recommended Board Action Staff recommends the following: 1. Find that the Project is exempt from CEQA; 2. Award a construction contract in the amount of$27,606,000 to C. Overaa &Co.,the lowest responsive and responsible bidder,for the construction of the Pump Station Upgrades, Phase 2A, District Project 8457; 3. Authorize the General Manager to execute the Contract Documents subject to submittal requirement and include up to a 10-percent contingency; and 4. Authorize the General Manager to amend three professional engineering services agreements with the following consultants to provide construction support at a cost not to exceed: a. Carollo Engineers, Inc.for$1.8 million, increasing the agreement to$2 million; b. HDR, Inc.for$600,000, increasing the agreement to$790,000; and C. ArcSine Engineering, Inc.for$500,000, increasing the agreement to$650,000. 1 16 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 18 of 25 8 Page 16 of 16 QUESTIONS 4 17 August 31, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 19 of 25 9