AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
DEPARTMENT: Infrastructure Division
AGENDA NUMBER 6j
MEETING DATE: September 8, 2026
Calendar: Consent Calendar
Project Manager: Aileen Caylao
Approve Modification No.1 Increasing the Duration for Contract No. WW-720, As-Needed Main Sewer Replacement No. 10
Summary of Proposed
Commission Action:
Approve Modification No. 1 to Contract No. WW-720, As-Needed Main Sewer Replacement No. 10 , with Mitchell Engineering, increasing the contract duration by 365 consecutive calendar days, to allow the San Francisco Public Utilities Commission staff to continue to issue contract service orders and provide time for the contractor to perform construction scope, for a
revised contract
duration of 1,095 consecutive calendar days (approximately three years), with no change to the contract amount.
Background: The objective of this contract is to perform urgent main sewer replacement work on short notice, as required and at locations specified by the San Francisco Public Utilities Commission (SFPUC) Wastewater Enterprise (WWE) staff across the City and County of San Francisco. SFPUC procured this contract to perform urgent main sewer replaceme nt in a cost -effective and time- efficient manner.
On June 25, 2024, by Resolution No. 24 -0154, this Commission awarded Contract No. WW-720, As -Needed Main Sewer
Replacement No. 10, to Mitchell Engineering, the original not -to- exceed contract amount was $16,028,745 and the original contract duration was 730 calendar days (two years).
Under San Francisco Administrative Code 6.64, an as -needed construction contract may be modified up to a five- year total duration and up to 150% of the original contract amount; no contract service orders may be issued after four years from the date of Controller certification; and no individual contract service order may exceed the Threshold Amount as set by the Controller.
For Contract No. WW-720, the recommended increase in duration is requested to allow staff to continue to issue contract service orders and provide time for the contractor to perform construction scope. The recommended increase is within the five- year limit in conformance with Administrative Code Section 6.64.
Agenda Title: WW-720, As-Needed Main Sewer Replacement No. 10 Commission Meeting Date: September 8, 2026
Due to the nature of the as-needed contract, there is no accompanying Location Map.
Scope of Contract: The contract work locations are within the City and County of San Francisco. The scope of work under this contract includes as - needed replacement of main sewers, in manhole-to-manhole segments such as:
• Replacement of approximately 5,600 linear feet of sewer pipelines; and
• Lining of approximately 5,400 linear feet of existing sewer pipelines, ranging in size from 8-inch to 36-inch diameter.
Modifications to the
Contract:
Recommended Modification No. 1 : Staff recommends that the Commission approve Modification No. 1, increasing the contract duration by 365 consecutive calendar days, for a revised contract duration of 1,095 consecutive calendar days, with no change to the contract amount, to allow staff to continue issuing contract service orders and for the contractor to complete construction scope.
Funding and Costs: Funding Source: Wastewater Enterprise Renewal and Replacement Program, Project No.10037691, As-Needed Main Sewer Replacement No. 10
Original Contract Amount: $16,028,745
Modified Increases to Contract Amount: $0
Recommended Modification No. 1 Amount: $0
Total Contract Amount: $16,028,745
Schedule: Certification Date: September 4, 2024
Notice-to-Proceed Date: September 30, 2024
Original Contract Duration: 730 consecutive calendar days Modified Increases to Contract Duration: 0 calendar days Recommended Modification No. 1 Duration: 365 consecutive calendar days
[Proposed] Total Contract Duration: 1,095 consecutive
calendar days
Local Business
Enterprise Utilization
and Non-
Discrimination in
Contracting:
The Contract Monitoring Division established a n 11% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to an 11.77% LBE
subcontractor participation with its bid submittal, and this amount remains unchanged.
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) identified a need to perform urgent main sewer replacement work on short notice, as required, and at locations specified by SFPUC Wastewater Enterprise (WWE) staff across the City and County of San Francisco and procured this contract to perform the work in a cost-effective and time-efficient manner; and
WHEREAS, On June 25, 2024, by Resolution No. 24-0154, the Commission awarded Contract No. WW-720, As-Needed Main Sewer Replacement No. 10, to Mitchell Engineering; and
WHEREAS, The original contract amount was $ 16,028,745 and the original contract duration was 730 consecutive calendar days; and
WHEREAS, The contract Notice-to-Proceed date was September 30, 2024; and
WHEREAS, Staff recommends approval of Modification No. 1 to increase the contract duration by 365 consecutive calendar days to allow staff to continue issuing contract service orders and for the contractor to complete construction scope, for a revised contract duration of 1,095 consecutive calendar days, with no change to the contract amount; and
WHEREAS, The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 11 % for this contract, the contractor committed to an LBE subcontractor participation of 11.77% with its bid submittal, and this amount remains unchanged; and
WHEREAS, Funds are available from Project No. 10037691, As-Needed Main Sewer Replacement No. 10; now, therefore, be it
RESOLVED, That this Commission hereby approves Modification No. 1 to Contract No. WW-720, As -Needed Main Sewer Replacement No. 10, increasing the contract duration by 365 consecutive calendar days, to allow staff to continue issuing contract service orders and for the contractor to complete construction scope, for a total contract duration of up to 1,095 consecutive calendar days, with no change to the contract amount.
I hereby certify that the foregoing resolution was adopted by the San Francisco Public Utilities Commission at its meeting of September 8, 2026.
__________________________________
Director of Commission Affairs
San Francisco Public Utilities Commission