Request to Approve Increase to Duration Contingency
Construction Contract No. WW-645R Westside Pump Station Reliability Improvements
Brian Carlomagno, P.E. San Francisco Public Utilities Commission Senior Project Manager November 10, 2025 Meeting
2 WSS Reliability Improvements
Commission Action Request
Approve an increase of 602 calendar days to the duration contingency for Contract No. WW‐645R, Westside Pump Station Reliability Improvements. 3 WSS Reliability Improvements
Project Scope
Existing Pump Station
New Roof & Concrete Building Repairs
Replacement Coarse Barscreens
Mechanical Valves & Hydraulic Power Unit
Ventilation
Electrical & I&C Improvement Work
Scope of Contract includes:
New Electrical Building
New Electrical Substation Equipment
Utility Improvements
Site Landscape & Civil Work
Public Art
`
4 WSS Reliability Improvements
Current Status and Remaining Work
Remaining work includes:
o Site construction of new knife gate structure and mechanical equipment o Installation of electrical equipment at existing building south courtyard area o Installation of underground utility work along Lower Great Highway o Site Landscape restoration
Construction 65% complete with PG&E
connection to New Electrical Building with
interior electrical substation work complete.
New barscreens equipment and cross‐
connect channel within existing building
complete.
Public Art installations complete.
‐Existing sculptures
‐New Mural
2027202620252024202320222021
5 Requested Duration
Contingency Increase
WW-645R Previously Authorized Contract Days
Requested
602 Calendar Days
PRO.0181 PUC Westside CM Services Authorized Contract Days Requested
1 year 6 months
DEPARTMENT
Wastewater Enterprise
AGENDA NO.
9 MEETING DATE
November 10, 2025
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Regular Calendar
Project Manager: Brian Carlomagno
Approve Increase to the Duration Contingency for Contract No. WW-645R
Summary of Proposed
Commission Action:
Approve an increase of 602 calendar days (approximately one year and eight months) to the duration contingency for Contract No. WW-645R, with Anvil Builders, Inc., for a revised duration limit of 2,264 calendar days (approximately six years and three months) to address procurement, site civil and structural work, system integration, and third-party ( Pacific Gas and Electric Company) delays in providing electric service, with no change to the contract amount or amount contingency.
Background: The San Francisco Public Utilities Commission (SFPUC) Wastewater Enterprise initiated the Westside Pump Station Reliability Improvements project ( Contract No. WW-645R) to improve reliability of the Westside Pump Station to meet regulatory requirements by providing a new electrical power service feed, replacement of essential wastewater-process mechanical and electrical equipment, and ventilation, plumbing and instrumentation and control improvements. The project includes site civil work, street curb ramp work, landscape and architectural facility work, structural cast -in-place concrete vaults, foundation and facility modification work, shoring work, construction of a new electrical building, pipeline replacement, corrosion protection and security improvement s. The implementation of this project will ensure reliable and efficient operation in keeping with the level of service and the ability to maintain regulatory compliance.
On February 23, 2021, by Resolution No. 21-0031, this Commission awarded Contract No. WW -645R, to Anvil Builders, Inc., in the amount of $48,328,300, and with a contract duration of 1,020 consecutive calendar days.
On February 27, 2024, by Resolution No. 24 -0043, this Commission approved an increase of $3,000,000 to the cost contingency and an increase of 540 calendar days to the duration contingency , for a total cost limit of $56,161,130 and a total duration limit of 1,662 calendar days.
Scope of Contract: The contract work is located at the Westside Pump Station in San Francisco.
The contract work consists of:
• Existing Westside Pump Station Building (WSS 001 Main Building) o Replacement of existing dry and wet weather bar screen assemblies Agenda Title: Approve Increase to the Duration Contingency for Contract No. WW-645R Commission Meeting Date: November 10, 2025
o Construction of cross connection between the dry and wet weather channels
o Replacement of the 54-inch wet-weather pump discharge header o Construction of new Level 2 and Level 3 knife gate valve structure o Installation of a 54-inch knife gate valve and modification of the existing Hydraulic Power Unit (HPU) assembly
o Replacement and new ventilation fans, ducts, and louver assemblies o Removal of existing Pacific Gas and Electric Company (PG&E) transformer and existing wet-weather pump variable frequency drive assemblies
o Electrical power systems, equipment, appurtenances, and conduit/wiring
o Construction of new Level 1 electrical room
o Modification of existing restroom and existing landscape planters o Replacement of existing roof system
o Concrete spall repair
o Hazardous material abatement (lead-based paint mitigation and removal of asbestos-containing roofing material)
• New Electrical Building (WSS 002 Electrical Building) • Utility Improvements on the Great Highway and Sloat Blvd o Underground conduit, pull boxes, and vaults for the new primary and redundant PG&E electrical feeds from Sloat Blvd to the WSS 002 Electrical Building
o 54-inch steel pipeline from existing Main Building wet weather pumps discharge header to the existing WSS Vault 3
• Site Landscape & Civil Work
• Instrumentation & Control systems, field devices, field instruments, PLC hardware and system integration
• Testing, Start-up, and Commissioning of the new electrical and mechanical systems
• Temporary shoring, bracing, and underpinning
• Traffic Control
Modifications to the
Contract:
Modification No. 1: The SFPUC modified the contract within the original cost contingency, increasing the contract amount by $2,096,370, to address unforeseen site civil, structural, instrumentation & control, and electrical work and for anticipated PG&E electric service delays, for a revised contract amount of $50,424,670, with no change to the contract duration.
Recommended Increase to Duration Contingency: Staff recommends the Commission increase the duration contingency by 602 calendar days, for a revised duration limit of 2,264 calendar days, to address procurement, site civil and structural work, system integration, and third-party (PG&E) delays in providing electric service, with no change to the contract amount.
Funding and Costs: Funding Source: Wastewater Enterprise Capital Improvement Program Project No. 10029736, Westside Pump Station Reliability Improvements Agenda Title: Approve Increase to the Duration Contingency for Contract No. WW-645R Commission Meeting Date: November 10, 2025
Original Contract Amount: $48,328,300
Original 10% Cost Contingency: $4,832,830
Approved Increase in Cost Contingency: $3,000,000
Modified Increases to Contract Amount: $2,096,370
Total Current Contract Amount: $50,424,670
Total Current Contingency Amount: $5,736,460
Requested Additional Cost Contingency: $0
Total Current Contract Cost Limit: $56,161,130
Schedule: Notice-to-Proceed Date: April 19, 2021
Original Contract Duration: 1,020 consecutive calendar days Original 10% Duration Contingency: 102 calendar days
Approved Increase to Duration Contingency: 540 calendar days Modified Increases to Contract Duration: 0 consecutive calendar days Total Current Contract Duration: 1,020 consecutive calendar days Requested Additional Duration Contingency: 602 calendar days Total [Proposed] Duration Limit: 2,264 calendar days
Local Business
Enterprise Utilization
and Non-
Discrimination in
Contracting:
The Contract Monitoring Division established a 15% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to a 15.91% LBE subcontractor participation with its bid submittal, and this amount remains unchanged.
Agenda Title: Approve Increase to the Duration Contingency for Contract No. WW-645R Commission Meeting Date: November 10, 2025
Location map:
Westside Pump Station
2814 Great Highway
San Francisco, CA
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, On February 23, 2021, by Resolution No. 21-0031, the San Francisco Public Utilities Commission (SFPUC) awarded Contract No. WW-645R, to Anvil Builders, Inc.; and
WHEREAS, The original contract amount was for $48,328,300 and the original contract duration was 1,020 consecutive calendar days; and
WHEREAS, The contract Notice-to-Proceed date was April 19, 2021; and
WHEREAS, On February 27, 2024, by Resolution No. 24-0043, the Commission approved an increase of $3,000,000 to the cost contingency and approved an increase of 540 calendar days to the duration contingency for a total duration limit of up to 1,662 consecutive calendar days; and
WHEREAS, On June 12, 2025, SFPUC staff issued Modification No. 1 increasing the contract amount within the original cost contingency by $2,096,370, for a revised contract amount of $50,424,670, with no change to the contract duration; and
WHEREAS, Staff recommends an increase of 602 calendar days to the duration contingency to address procurement, site civil and structural work, system integration, and third- party (Pacific Gas and Electric Company) delays in providing electric service; and
WHEREAS, The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 15% for this contract, the contractor committed to a n LBE subcontractor participation of 15.91% with its bid submittal, and this remains unchanged; and
WHEREAS, Funds are available from Project No. 10029736, Westside Pump Station Reliability Improvements; now, therefore, be it
RESOLVED, That this Commission hereby approves an increase of 602 calendar days to the existing duration contingency for Contract No. WW-645R, for a total duration contingency of 1,244 calendar days, with no change to the contract cost contingency; and be it
FURTHER RESOLVED, That this Commission hereby authorizes the General Manager, or the General Manager’s designee, to approve future modifications to the contract duration for a total duration limit of 2,264 calendar days.
I hereby certify that the foregoing resolution was adopted by the San Francisco Public Utilities Commission at its meeting of November 10, 2025.
Director of Commission Affairs
San Francisco Public Utilities Commission