DEPARTMENT
Infrastructure Division
AGENDA NO.
12c
MEETING DATE
September 27, 2022
APPROVAL:
COMMISSION
SECRETARY
Donna Hood
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Construction Modification: Consent Calendar
Contract Manager: Barbara Palacios
Approve Increase to Construction Duration Contingency for Contract No. WD-2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant
Summary of Proposed
Commission Action:
Approve an increase of 370 calendar days to the construction duration contingency for Contract No. WD -2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant , with S.J.
Amoroso Construction Co., Inc. to address on-going schedule impacts due to COVID -related delays in material deliveries, changes in the development of the treatment facility process control and instrumentation system, and to provide sufficient contingency t o address unanticipated changes through the remainder of the construction effort ; and authorize the General Manager to approve future modifications to the Contract for a total Contract duration of up to 2,180 consecutive calendar days (approximately six years), with no change to the Contract amount.
Background: The Westside Recycled Water Project is a key water supply project for the San Francisco Public Utilities Commission (SFPUC). The primary objectives of the Project are to (1) create a new recycled water supply of up to two million gallons per day; ( 2) expand and diversify the SFPUC water supply portfolio; and (3) reduce the use of potable water for irrigation by supplying those demands with recycled water.
The Recycled Water Treatment Facility is one of the four major construction contracts of the Westside Recycled Water Project, which also includes the construction of approximately 7.7 miles of new recycled water pipeline (Contract No. WD-2798), a new recycled water pump station and reservoir in Golden Gate Park (Contract No. WD - 2797), and retrofits of the irrigation systems in Golden Gate Park and Lincoln Park Golf Course (Contract No. WD-2852R).
On May 9, 2017, by Resolution No. 17-0108, this Commission awarded Contract No. WD -2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant . The original contract amount Contract: WD-2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant Commission Meeting Date: September 27, 2022
was $87,597,000, and the original contract duration was 1,230 consecutive calendar days.
Description of Scope of
Work:
The contract work location is the City and County of San Francisco, in the Oceanside Treatment Plant. The scope of work consists of:
• Construction of a new two- story reinforced concrete recycled water treatment facility, with underground equalization storage. • Construction of a secondary effluent pump station and piping. • Installation of treatment process equipment including membrane filtration, reverse osmosis treatment, and ultraviolet light disinfection, and related systems such as clean- in-place chemical systems, mechanical piping, electrical and
instrumentation and controls.
• Demolition and reconfiguration of existing chemical storage room, including construction of new chemical containment systems, tanks, and metering pumps, piping, chem ical off - loading facilities, and related appurtenances.
• Construction of a transmission pump station.
• Yard piping for treatment facility overflow and reverse osmosis concentrate, and recycled water conveyance.
• Utilities relocation, staging area preparation, and other miscellaneous work to provide a fully functional treatment facility and pumping system.
Changes and
Modifications to the
Contract:
Modifications Nos. 1 to 25 were issued within the original contingencies for money and time, increasing the contract amount by $3,640,816 and increasing the contract duration by 118 consecutive calendar days to address changes to materials of construction and methods of support for pipelines and valve s; addition of valves ; modifications to pipeline alignment; additional costs for field assembly of microfiltration system; changes to architectural features such as doors, stairs, guardrails; changes to equipment seismic anchorage; and other mechanical, electrical, instrumentat
ion and control, plumbing,
fire system ; and HVAC work, for a total C ontract amount of $91,237,816, and a total C ontract duration of 1,348 consecutive calendar days.
On June 8, 2021, by Resolution No. 21-0090 , this Commission approved a n increase of 457 calendar days to the C ontract duration contingency for a total contract duration of up to 1,810 consecutive calendar days, with no change in the Contract amount.
Modifications Nos. 26 to 37 were issued increasing the C ontract amount by $1,468,756 within the contingency to change pipe support material of construction; revise chemical pipe routing; add new sample and drain lines and ammonia probes; add miscellaneous modifications to the membrane filtration and clean-in-place systems; install fire-rated ceiling system; install light fixtures and associated work; add chemical Contract: WD-2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant Commission Meeting Date: September 27, 2022
system flushing ports; add changes to the yard paving; remov al and replacement of mud valves; and other civil, mechanical and electrical work, for a total Contract amount of $92,706,572, with no change to the Contract duration.
Requested Increase to Contract Duration Contingency
An increase of 370 calendar days to the existing C ontract duration contingency is being requested to address on-going schedule impacts due to COVID -related delays in material deliveries, c hanges in the development of the treatment facility process control and instrumentation system, and to provide sufficient contingency to address unanticipated changes through the remainder of the construction effort , for a total contract duration of up to 2,180 consecutive calendar days, with no change to the Contract amount.
Funding, Budget &
Costs:
Funding: Project No. CUW30201, Water System Improvement Program. The project also includes financing of eligible costs by a Clean Water State Revolving Fund loan, as approved by this Commission on July 11, 2017 by Resolution Nos. 17- 0155 and 17 - 0159.
Original Contract Amount: $87,597,000
Original 10% Cost Contingency: $ 8,759,700
Total Contract Cost Limit: $96,356,700
Schedule: Notice-to-Proceed Date: October 18, 2017
Original Contract Duration: 1,230 consecutive calendar days Original 10% Duration Contingency: 123 calendar days
Approved Increase to Duration Contingency: 457 calendar days Requested Additional Duration Contingency: 370 calendar days Total Revised Contract Duration Limit: 2,180 consecutive calendar days
Compliance with
Chapter 14B: Local
Business Enterprise
Utilization and Non-
Discrimination In
Contracting Ordinance:
The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation requirement of 16% for this contract. The contractor com mitted to an LBE subcontractor participation of 17.64% with its bid submittal.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Contract: WD-2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant Commission Meeting Date: September 27, 2022
Figure – Westside Recycled Water Project
WD-2776 Westside
Recycled Water Treatment
Facility at Oceanside Plant
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) Westside Recycled Water Treatment Facility at the Oceanside Plant is one of the four major construction contracts of the Westside Recycled Water Project, which also includes the construction of approximately 7.7 miles of new recycled water pipeline (Contract No. WD-2798), the construction of a new recycled water pump station and reservoir in Golden Gate Park (Contract No. WD -2797), and the construction of irrigation retrofits in Golden Gate Park and Lincoln Park Golf Course (Contract No. WD-2852R). The purpose of the Westside Recycled Water Project is to : (1) create a new recycled water supply of up to two million gallons per day; (2) expand and diversify the SFPUC water supply portfolio; and (3) reduce the use of potable water for irrigation by supplying those demands with recycled water; and
WHEREAS, On May 9, 2017, by Resolution No. 17-0108, this Commission awarded the Contract No. WD-2776, San Francisco Westside Recycled Treatment Facility at the Oceanside Plant, to S.J. Amoroso Construction Co., Inc., and
WHEREAS, The construction Contract Notice-to-Proceed date was October 18, 2017; and WHEREAS, The original Contract amount was for $87,597,000 and the original Contract duration was 1,230 consecutive calendar days; and
WHEREAS, On June 8, 2021, by Resolution No. 21-0090, this Commission approved an increase of 457 calendar days to the Contract duration contingency for a total Contact duration of up to 1,810 consecutive calendar days, with no change in Contract amount; and WHEREAS, An increase of 370 calendar days to the C ontract duration contingency is being requested to address on-going schedule impacts due to COVID- related delays in material deliveries, changes in the development of the treatment facility process control and instrumentation system, and to provide sufficient contingency to address unanticipated changes through the remainder of the construction effort; and
WHEREAS, Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation requirement of 16% for this contract, and the contractor committed to an LBE subcontractor participation of 17.64% with its bid submittal; now, therefore, be it RESOLVED, That this Commission hereby approves an increase of 370 calendar days to the existing Contract duration contingency for Contract No. WD -2776, San Francisco Westside Recycled Water Treatment Facility at Oceanside Plant, for a total Contract duration contingency amount of up to 950 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 Contract duration for a total C ontract duration of up to 2,180 consecutive calendar days, with no change to the Contract amount.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of September 27, 2022.
Secretary, Public Utilities Commission