DEPARTMENT
Water Enterprise
AGENDA NO.
7e
MEETING DATE
June 24, 2025
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Consent Calendar
Project Manager: Ada Zhu
Approve Increases to the Cost and Duration Contingencies for Contract No. PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements
Summary of Proposed
Commission Action:
Approve an increase of $3,100,000 to the cost contingency and an increase of 260 calendar days to the duration contingency for Contract No. PW -011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements, with Mitchell Engineering, for a revised cost limit of $20,118,385 and a revised duration limit of 931 consecutive calendar days, to extend water mains and upsize service pipes prior to a future paving contract; install remote control and monitoring facilities; and remove an abandoned Pacific Gas and Electric Company gas pipeline.
Background: The San Francisco Public Utilities Commission (SFPUC) is extending the Bay Corridor Transmission & Distribution (BCTD) electrical distribution system, replacing aging water conveyance/distribution pipelines, and expanding the high-pressure Emergency Firefighting Water System (EFWS) to better serve the needs of existing and future customers in San Francisco’s Bayview neighborhood.
On May 28, 2024, by Resolution No. 24- 0127, this Commission awarded Contract No. PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements , to Mitchell Engineering. T he original contract amount was $15,471,259 and the original contract duration was 610 consecutive calendar days.
Scope of Contract: The contract work locations are on Rankin Street, Evans Avenue, Marin Street, and Cesar Chavez Street in the Bayview neighborhood of the City and County of San Francisco.
The contract work consists of:
1. Installation of underground electrical distribution and communication duct banks and accompanying vaults and
appurtenances along Rankin Street, Evans Avenue, and Marin Street and installation and commissioning of the 2000 Marin customer circuit.
Agenda Title: PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements Commission Meeting Date: June 24, 2025
2. Installation of 12-inch diameter ductile iron pipe potable water mains and accompanying valves, services, and other appurtenances along Evans Avenue, Marin Street, and Cesar Chavez Street.
3. Installation of 12-inch diameter earthquake resistant ductile iron pipe and accompanying valves and appurtenances, and cathodic protection along Marin Street.
4. Removal of existing and installation of new cast -in-place reinforced concrete valve vault with sump pump, 12- inch diameter ball valve and hydraulic actuator, magnetic flow meter, and electrical cabinet along with conduit sleeves and other related work at Evans Avenue north of Napoleon Street.
5. Construction of accessible curb ramps, and trench and pavement restoration.
6. Traffic routing in accordance with the Contract and as required by the San Francisco Municipal Transportation Agency; and
7. Protection of trees within the work area.
Modifications to the
Contract:
Modification No. 1 : Effective March 21, 2025, Staff issued Modification No. 1, increasing the contract amount by $606,600, within the original 10% contingency, to perform additional potholing to confirm location of existing utilities, to confirm the electrical duct bank alignmen t layout, and to clear locations for the placement of electrical and communication vaults before excavation and trenching to avoid any rework and delay in schedule , for a total contract amount of $ 16,077,859, with no change to the contract duration.
Proposed Increases to Cost and Duration Contingenc ies: Staff recommends the Commission approve an increase of $3,100,000 to the existing cost contingency and an increase of 260 calendar days to the existing duration contingency, to perform the following: extend water main replacement and add water main rehabilitation (lining) on Cesar Chavez Street; extend water main replacement one block on Connecticut Street; delete water main replacement and abandon pipeline under Evans Avenue bridge; upsize water service pipes and install water pipe joint wrap ; install remote control and monitoring to the new EFWS isolation valve at Evans Avenue north of Napoleon Street; and remove an unknown Pacific Gas and Electric Company (PG&E) abandoned gas pipeline on Evans Avenue; for a revised cost limit of $20,118,385, and a revised duration limit of 931 consecutive calendar days.
The additional water main replacement and rehabilitation on Cesar Chavez Street is requested to ensure all critical water mains in the area are replaced before an upcoming San Francisco Public Works paving contract after which the street would be placed under a five-year no-digging moratorium.
Agenda Title: PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements Commission Meeting Date: June 24, 2025
The remote control and monitoring of the additional EFWS isolation valve is requested as an enhancement to SFWD’s operation during an emergency event and serves as a pilot project to the City’s westside Potable EFWS (PEFWS) pipeline project.
An abandoned PG&E gas pipe was discovered during the additional potholing investigation. The abandoned gas pipe would conflict with the electrical duct bank routing. PG&E was notified, and project team is coordinating with PG& E for the safe removal of the gas pipe under this contract.
Funding and Costs: Funding Source: Project No.10039265 (BCTD), GC 2000 Marin CDD Facility; Project No.10038358 (Water Conveyance/Distribution), WD-2891 Marin and Evans; Project No. 10039024 (EFWS), EFWS 2000 Marin.
Original Contract Amount: $15,471,259
Original 10% Cost Contingency: $1,547,125
Approved Increases to Cost Contingency: $0
Modified Increase to Contract Amount: $606,600
Total Current Contract Amount: $16,077,859
Remaining Cost Contingency: $940,525
Requested Additional Cost Contingency: $3,100,000
Total Proposed Cost Limit: $20,118,384
Schedule: Notice-to-Proceed Date: September 16, 2024
Original Contract Duration: 610 consecutive calendar days Original 10% Duration Contingency: 61 calendar days
Approved Increase to Duration Contingency: 0 calendar days Modified Increase to Contract Duration: 0 calendar days Total Current Contract Duration: 610 consecutive calendar days Remaining Duration Contingency: 61 calendar days
Requested Additional Duration Contingency: 260 calendar days.
Total Proposed Duration Limit: 931 consecutive calendar days
Environmental
Review:
On May 30, 2023, the San Francisco Planning Department determined the Project to be categorically exempt from environmental review under the California Environmental Quality Act (CEQA) Guidelines sections 15302 and 15303, Class 2 (Replacement and Reconstruction) and Class 3 (New Construction or Conversion of Small Structures), under Case Number 2023- 001209ENV. The exemption determination can be found here:
https://sfpuc.sharefile.com/public/share/web-
sd3b7d89129db428588ed6d28f2366e55
Modifications to the Project include additional water main replacement and lining installation. On March 11, 2025, under Case No. 2023- 001209ENV and pursuant to San Francisco Administrative Code subsection 31.08(i), the Planning Department determined that these modifications are not substantial, Agenda Title: PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements Commission Meeting Date: June 24, 2025
BCTD Phase 4 and Water Improvements Scope of Work
and the modified project remains categorically exempt under the CEQA and does not require further environmental review. This determination can be found here:
https://sfpuc.sharefile.com/public/share/web-
sb71bae0a2c6f42ed8ed0cf742860fbe6
The work under this modification is within the scope of the project authorized under the exemption and Project Modification determination.
Local Business
Enterprise Utilization
and Non-
Discrimination in
Contracting:
The Contract Monitoring Division established a 12% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to a 12.17% LBE subcontractor participation with its bid submittal and this amount remains unchanged.
Agenda Title: PW-011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements Commission Meeting Date: June 24, 2025
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, On May 28, 2024, by Resolution No. 24- 0127, the Commission awarded Contract No. PW -011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements to Mitchell Engineering; and
WHEREAS, The original contract amount was for $15,471,259 and the original contract duration was 610 consecutive calendar days; and
WHEREAS, The contract Notice-to-Proceed date was September 16, 2024; and
WHEREAS, On March 21, 2025, Staff issued Modification No. 1 increas ing the contract amount by $606,600, within the original 10% contingency, to perform additional potholing to confirm location of existing utilities, to confirm the electrical duct bank alignment layout, and to clear locations for the placement of electrical and communication vaults prior to excavation and trenching to avoid any rework and delay in schedule, for a total contract amount of $16,077,859, with no change to the contract duration; and
WHEREAS, Staff recommends an increase of $3,100,000 to the existing cost contingency and an increase of 260 consecutive calendar days to the existing duration contingency for a revised cost limit of $20,118,385 and a revised duration limit of 931 consecutive calendar days, to perform the following anticipated additional work: extend water main replacement and add water main rehabilitation (lining) on Cesar Chavez Street ; extend water main replacement one block on Connecticut Street; delete water main replacement and abandon pipeline under the Evans Avenue bridge; upsize water service pipes and install water pipe joint wrap ; install remote control and monitoring to the new EFWS isolation valve ; and remove an unknown PG&E abandoned gas pipeline; and
WHEREAS, The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 12% for this contract, the contractor committed to a n LBE subcontractor participation of 12.17% with its bid submittal, and this amount remains unchanged; and
WHEREAS, On May 30, 2023, the San Francisco Planning Department determined the Project to be categorically exempt from environmental review under the California Environmental Quality Act ( CEQA) Guidelines sections 15302 and 15303, Class 2 (Replacement and Reconstruction) and Class 3 (New Construction or Conversion of Small Structures), under Case Number 2023-001209ENV; and
WHEREAS, On March 11, 2025, under Case No. 2023-001209ENV and pursuant to San Francisco Administrative Code subsection 31.08(i), the Planning Department determined that these modifications are not substantial, and the modified project remains categorically exempt under the CEQA and does not require further environmental review; and
WHEREAS, The work under this modification is within the scope of the project authorized under the exemption and Project Modification determination; and
WHEREAS, Funds are available from Project No.10039265 (BCTD), GC 2000 Marin CDD Facility; Project No.10038358 ( Water Conveyance/Distribution) , WD-2891 Marin and Evans; Project No. 10039024 (EFWS), EFWS 2000 Marin; now, therefore, be it
RESOLVED, That this Commission hereby approves an increase of $3, 100,000 to the existing cost contingency and an increase of 260 calendar days to the existing duration contingency for Contract No. PW -011, Bay Corridor Transmission and Distribution Phase 4 and Water Improvements, for a total cost contingency amount of $4,040,525 and a total duration contingency of 321 calendar days; and be it
FURTHER RESOLVED, That this Commission hereby authorizes the General Manager, or the General Manager’s designee, to consider, and, if appropriate, to approve any future modifications to the C ontract, for a total contract amount up to $20,118,385 and a total contract duration of up to 931 consecutive calendar days.
I hereby certify that the foregoing resolution was adopted by the San Francisco Public Utilities Commission at its meeting of June 24, 2025.
Director of Commission Affairs
San Francisco Public Utilities Commission