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Home My WebLink About03.a. Review draft Position Paper to award a construction contract in the amount of $687,500 to Sonnikson and Stordahl Construction, Inc., the lowest responsive bidder for the Treatment Plant Safety Enhancements – Phase 5, District Project 7364; consider Page 1 of 9 Item 3.a. CENTRAL SAN BOARD OF DIRECTORS vie POSITION PAPER Hill Tim DRAFT MEETING DATE: FEBRUARY4, 2020 SUBJECT: REVIEW DRAFT POSITION PAPER TO AWARD A CONSTRUCTION CONTRACT I N THE AMOUNT OF $687,500 TO SONNI KSON AND STORDAHL CONSTRUCTION, INC., THE LOWEST RESPONSIVE BIDDER FOR THE TREATMENT PLANT SAFETY ENHANCEMENTS — PHASE 5, DISTRICT PROJECT 7364; CONSIDER EXEMPTION FROM THE CALI FORNIA ENVI RONMENTAL QUALITYACT (CEQA); AMEND AN EXISTING AGREEMENT WITH BLACK AND VEATCH CORPORATION IN THE AMOUNT OF $120,000 FOR CONSTRUCTION SUPPORT SERVICES; AND AUTHORIZE UP TO A 15-PERCENT CONTINGENCY SUBMITTED BY: INITIATING DEPARTMENT: CRAIG MIZUTANI, SENIOR ENGINEER ENGINEERING AND TECHNICAL SERVICES- CAPITAL PROJECTS REVIEWED BY: EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL SERVICES ISSUE The Board of Directors (Board) must award the contract or reject bids within 50 days of the bid opening. Authorization is required for the General Manager to execute the Contract Documents subject to submittal requirements and include up to a 15-percent contingency. The General Manager also needs Board authorization to amend an existing professional engineering services agreement, which is over the Board delegated authority. BACKGROUND The Treatment Plant Safety Enhancements — Phase 5, District Project (DP) 7364 (Project) includes facility safety improvements to construct an exterior emergency exit stairway for the control room and electrical room in the Solids Conditioning Building (SCB). The stairway was identified as a safety improvement during a fire safety study conducted a few years ago. There is currently a single exit path from the control room and the additional exit stairway will provide a secondary and more direct egress route during an emergency. It will also provide an additional means to access other floors of the SCB and the other nearby facilities. February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 3 of 19 Page 2 of 9 Due to the major seismic improvements planned under the Solids Handling Facility Improvements, DP 7348 (Solids Project), staff decided to coordinate and design the new stairway using the Solids Project design team lead by Black and Veatch Corporation (B&V). Overall, the scope of work performed under the Project consists of building a new exterior three-story metal stairway and platform system on the southeast area of the SCB. The new stairway will also be needed as the existing SCB stairway will be modified and temporarily out of service during the Solids Project. Other work including foundation, modifications to the existing building exterior, and lighting will be done under the Project.A project location map is shown in Attachment 1. The Engineer's construction estimate was $650,000. The Project was advertised to bid on January 6 and 13, 2020. Five sealed bids ranging from $687,500 to $1,327,000 were received and publicly opened on January 30, 2020. The Capital Projects Division conducted a technical and commercial review of the bids and determined that Sonnikson and Stordahl Construction, Inc. is the lowest responsive and responsible bidder with a bid amount of $687,500. A summary of bids received is shown in Attachment 2. Staff will administer the construction contract and will provide contract management, administration, and office engineering. Inspection services will be provided under an existing agreement with Consolidated Construction Management, Inc. Staff recommends retaining B&V to provide construction support services for this Project because of their roles as the architect and structural firm in preparing the plans and specifications. B&V will perform submittal reviews, address requests for information, and provide direction for any proposed design changes. I n addition, B&V will coordinate with the Fire Department during the permit process for fire and life safety purposes, and provide final record drawings for the Project. A new amendment has been negotiated with B&V to provide services during construction in an amount not to exceed $120,000. CEQA: Staff has concluded that this Project is exempt from CEQA under Central San's CEQA Guidelines Section 15301, since it involves minor alterations to existing public facilities involving no expansion of use. Approval of this Project will establish the Board's independent finding that this Project is exempt from CEQA. ALT ERNAT IVES/CONSIDERAT IONS The Board may elect to reject bids and postpone the construction of the Treatment Plant Safety Enhancements - Phase 5 project to a future fiscal year. However, this is not recommended as this work is necessary prior to the Solids Project for the safety of Central San staff, outside contractors, and visitors. FINANCIAL IMPACTS The total estimated project cost is $985,000, which includes the construction contract, contingency, construction management, and consultant costs, as detailed in Attachment 3. All planning and design pre- bid expenditures (approximately$200,000)was paid under the Solids Project. The Fiscal Year 2019-20 Capital Improvement Budget includes an estimated total project budget of $700,000; additional funds are required to complete the Project. There are sufficient funds available in the Solids Project budget; therefore, a budget transfer in the amount of $285,000 will be made to fund this project. February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 4 of 19 Page 3 of 9 COMMITTEE RECOMMENDATION The Engineering and Operations Committee reviewed this matter at the February 4, 2020 meeting and recommended 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$687,500 for the construction of the Treatment Plant Safety Enhancements — Phase 5, District Project 7364, to Sonnikson and Stordahl Construction, Inc., the lowest responsive bidder; 3. Authorize an amendment to the existing professional services agreement with Black and Veatch Corporation in the amount of $120,000 for engineering construction support services; and 4. Authorize the General Manager to execute Contract Documents subject to submittal requirements and include up to a 15-percent contingency. Strateguc Plan Tie-In GOAL TWO: Strive to Meet Regulatory Requirements Strategy 1 - Strive to achieve 100%permit compliance in air, water, land, and other regulations GOAL FOUR: Develop and retain a highly trained and innovative workforce Strategy 3- Meet or exceed industry safety standards GOAL FIVE:Maintain a Reliable Infrastructure Strategy 3- Protect District personnel and assets from threats and emergencies ATTACHMENTS: 1. Project Location Map 2. Summary of Bids 3. Post Bid/P reconstruction Estimate 4. Presentation February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 5 of 19 Page 4 of 9 \ 0 200 400 FEET '\ \ Basin A South \\\ sO \, tic CONSTRUCTION STAGING AREA SOLIDS NDITIONI `\\\ PROJECT AREA BUILDIN D SOLIDS CONDITIONING BUILDING i 1 0-00 Aeration CLA IERS Tanks (SOUT UAD) 00 PRIMARY O SEDIMENTATION i TANKS i ------------ o 13 ❑ PUMP AND BLOWER BUILDING u — L POD HOB O / N 0 0C7� IMHOFF PLACE j7 Central Contra Costa Treatment Plant Attachment Sanitary District Safety Enhancements - Phase 5 ' District Project 7364 Location 1 Map February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 6 of 19 Page 5 of 9 ATTACHMENT 2 TREATMENT PLANT SAFETY ENHANCEMENTS — PHASE 5 DISTRICT PROJECT 7364 SUMMARY OF BIDS PROJECT NO.: 7364 NO. OF ADDENDA: 2 DATE/TIME: JANUARY 30, 2020/2:00 PM PROJECT NAME: TREATMENT PLANT SAFETY ENHANCEMENTS — PHASE 5 PROJECT MANAGER: CRAIG MIZUTANI PROJECT LOCATION: 5019 IMHOFF PLACE, MARTINEZ, CALIFORNIA ENGINEER'S ESTIMATE: $650,000 NO. BIDDER BID PRICE 1 Sonnikson & Stordahl Construction, Inc. $687,500 Martinez, California ' 2 GSE Construction Company Inc. $768,800 Livermore, California 3 Aztec Consultants, Inc. $858,300 San Ramon, California 4 Saboo Inc. $873,000 Brentwood, California ' 5 CWS Construction Group, Inc. $1,327,000 Novato, California BIDS OPENED BY /s/Katie Young DATE: January 30, 2020 February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 7 of 19 Page 6 of 9 ATTACHMENT 3 TREATMENT PLANT SAFETY ENHANCEMENTS - PHASE 5 DISTRICT PROJECT 7364 POST-BID/PRECONSTRUCTION ESTIMATE No. Item Description Amounts Construction Cost 1 CONSTRUCTION a. Construction Contract $687,500 b. Contingency at 15% $103,500 c. Permits $4,000 SUBTOTAL- CONSTRUCTION COST $795,000 100% 2 CONSTRUCTION MANAGEMENT a. District Forces - Construction Management $30,000 - Operations Support $5,000 b. Consultants - B&V (Consultant) $120,000 - Inspection $35,000 SUBTOTAL - CONSTRUCTION MANAGEMENT $190,000 24% 3 PRE-BID EXPENDITURES (Approx. $200,000 paid under the Solids Project) -- -- 4 TOTAL ESTIMATED CONSTRUCTION COST $985,000 February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 8 of 19 Page 7 of 9 TREATMENT PLANT SAFETY ENHANCEMENTS - PHASE 5 DISTRICT PROJECT 7364 Engineering & Operations Committee February 4, 2020 1 Edgar J. Lopez, PE Capital Projects Division Manager EMERGENCY STAIRWAY FOR THE SOLIDS CONDITIONING BUILDING (SCB) ,- '12 CENTRALSAN 1 February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 9 of 19 Page 8 of 9 WHY BUILD THE SCB EMERGENCY STAIRWAY NOW? - r 1INN rpf ■► • Solids Project is complicated and the existing emergency stairway will be impacted during construction. • A more direct and second means of egress for the 3rd Floor control room and electrical room. 3 CENTRALSAN BID RESULTS ENGINEER'S ESTIMATE: $650,000 NO. BIDDER BID PRICE 1 Sonnikson&Stordahl Construction,Inc. $687,500 Martinez,California 2 GSE Construction Company Inc. $768,800 Livermore,California 3 Aztec Consultants,Inc. $858,300 San Ramon,California 4 Saboo Inc. $873,000 Brentwood,California 5 CWS Construction Group,Inc. $1,327,000 Novato,California CENTRALSAN 2 February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 10 of 19 Page 9 of 9 TOTAL ESTIMATED PROJECT COSTS No. Item Description Amounts Construction Cost 1 CONSTRUCTION a.Construction Contract $687,500 b.Contingency at 15% $103,500 c.Permits $4,000 SUBTOTAL-CONSTRUCTION COST $795,000 100% 2 CONSTRUCTION MANAGEMENT a.District Forces Construction Management $30,000 Operations Support $5,000 b.Consultants B&V(Consultant) $120,000 I nspection $35,000 SUBTOTAL-CONSTRUCTION MANAGEMENT $190,000 24% 3 PRE-BID EXPENDITURES (Approx.$200,000 paid under the Solids Project) -- 4 TOTAL ESTIMATED CONSTRUCTION COST $985,000 5 STAFF RECOMMENDATIONS Staff recommends the following: • Find that the Project is exempt from CEQA; •Award a construction contract in the amount of$687,500 for the construction of the Treatment Plant Safety Enhancements — Phase 5, District Project 7364, to Sonnikson and Stordahl Construction, Inc., the lowest responsive bidder; •Authorize an amendment to the existing professional services agreement with Black and Veatch Corporation in the amount of $120,000 for engineering construction support services; and •Authorize the General Manager to execute Contract Documents subject to submittal requirements and include up to a 15- percent contingency � 6 3 February 4, 2020 EOPS Regular Committee Meeting Agenda Packet- Page 11 of 19