,
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
DEPARTMENT Infrastructure Division AGENDA NO. 6f
MEETING DATE February 14, 2023
Construction Closeout with Modification: Consent Calendar Project Manager: Tracy Cael
Accept Closeout with Modification for Contract No. WD-2809, San Francisco Groundwater Supply Phase 2
Summary of
Proposed
Commission Action:
Accept work performed by Western Water Constructors, Inc ., for Contract No. WD -2809, San Francisco Groundwater Supply Phase 2; Approve Modification No. 8 (Final), i ncreasing the contract amount by $112,60 1, for a total contract amount of $11,073,772, and increasing the contract duration by 717 consecutive calendar days (approximately two years) , for a total contract duration of 1,972 consecutive calendar days (approximately five years and five months), to reconcile and finalize the quantities and costs of all bid items and change orders for additional electrical , mechanical, and plumbing at
South Windmill Well Station , and to allow time for the completion of the remaining contract work; and authorize final payment to the contractor.
Background: The San Francisco Groundwater Supply Project provide s up to 4,000,000 gallons per day of groundwater to diversify San Francisco’s municipal water supply. All of the groundwater well facilities supply groundwater to existing reservoirs, where it will be blended with San Francisco’s existing municipal water supply be fore distribution within the City. The San Francisco Groundwater Supply Project was implemented over two phases and included
six groundwater
production well facilities, a pH adjustment facility at Sunset Reservoir, and a transmission pipeline system that c onnects the well station facilities to Sunset Reservoir.
By Contract No. WD-2809, SFPUC implemented Phase 2 of the Project and the construction of two groundwater production well facilities a s well as associated groundwater transmission pipelines.
These facilities pump groundwater to Sunset Reservoir for blending and distribution.
APPROVAL:
COMMISSION
SECRETARY Donna Hood
Contract: WD-2809, San Francisco Groundwater Supply Phase 2 Commission Meeting Date: February 14, 2023
On January 24, 2017, by Resolution No. 17 -0015, this Commission awarded Contract No. WD -2809, San Francisco Groundwater Supply Phase 2. The original contract amount was $9,780,000 and the original contract duration was 750 consecutive calendar days.
Description of Scope
of Work
The contract work location was in Golden Gate Park in San Francisco.
The contract work consisted of:
• Two new groundwater well stations including ground
improvements;
• Approximately 3,000 linear feet of 8-inch and 2,100 linear feet of 12-inch diameter ductile iron pipelines, valves, fittings and related appurtenances;
• Roadway and pathway reconstruction;
• Site preparation including clearing, grubbing and grading; • Demolition of existing irrigation well buildings, and removal of existing mechanical and electrical equipment;
• Various work on existing groundwater wells;
• Building foundations, drilled piers, temporary shoring, and retaining walls;
• New well pumps, motors and related appurtenances;
• Ventilation systems;
• Trenching, and pipeline and conduit construction;
• Cathodic protection system;
• Surge tanks;
• Compressed air system;
• Electrical power distribution systems, motor control centers, SCADA and I&C control systems;
• Fire alarm systems;
• Perimeter security fence and gates;
• Security monitoring and control systems;
• Final grading and drainage; and
• Landscape and irrigation systems, paving, and various other site improvements.
Changes to the
Contract under
Modifications:
On August 13, 2019, by Resolution No. 19 -0155, this Commission approved an increase of $400,000 to the contract cost contingency , increasing the contract cost contingency to $1,378,000, for a total contract amount of up to $11,158,000, and an increase of 250 calendar days to t he contract duration contingency, increasing the contract duration contingency to 325 calendar days, for a total contract duration of up to 1,075 consecutive calendar days.
Modification Nos. 1 to 5 increased the contract amount by $877,447 and increased the contract duration by 214 calendar daysfor upsizing Contract: WD-2809, San Francisco Groundwater Supply Phase 2 Commission Meeting Date: February 14, 2023
two surge tanks, new water services for the two well stations, furnishing and installation of piping, fittings and appurtenances with higher working pressure for the two well stations, modifications to the well pump and overboard design changes at the North Lake Well Station, system pressure design change, PG&E scheduling constraints delaying demolition of the North Lake Well Station, extended duration of well rehabilitation at North Lake Well Station,
programming and
testing of electrical, instrumentation and control components, procurement and installation of architectural items and additional piping, pressure reducing valve, air release valves, furnishing and installation of an underground recharge ch amber system, additional landscaping work at the South Windmill Well Station, and additional well rehabilitation testing, for a total contract amount of $10,657,447, and a total contract duration of 964 calendar days.
On July 14, 2020, by Resolution No. 20- 0144, the Commission approved an increase to the cost contingency in the amount of $200,000 for a total revised contract amount of up to $ 11,358,000 and an increase to the duration contingency in the amount of 180 calendar days for a total revised contract duration up to 1,255 consecutive calendar days.
Modification Nos. 6 to 7 increased the contract amount by $303,724 and increased the contract duration by 291 consecutive calendar daysto perform additional electrical , mechanical, plumbing, architectural, and landscaping work at North Lake and South Windmill Well Stations; and to provide a time extension to complete change order contract work , for a total contract amount of $10,961,171, and for a total contract duration of 1,255 consecutive calendar days.
The Project experienced significant delays to completion, including from delayed completion, acceptance and verification of punchlist items. One significant delay was due to the the ongoing COVID -19 restrictions which limited the ability of staff to complete and verify punchlist items. The C ontractor continued to complete items and a s- builts as expeditiously as possible under the circumstances. The Contractor also was delayed in completing as-built drawings due to owner and several required revisions . Therefore, additional non - compensable time is warranted to close out the project and there is no basis to assess liquidated damages.
Modification No. 8 (Final) is being requested to increase the contract amount by $112,601, and increase the contract duration by 717 consecutive calendar days to reconcile and finalize the quantities and costs of all bid items and change orders for additional electrical , Contract: WD-2809, San Francisco Groundwater Supply Phase 2 Commission Meeting Date: February 14, 2023
mechanical, and plumbing at South Windmill Well Station; completion of remaining closeout documents ; and time extension to complete the remaining contract work , for a total contract amount of $11,073,772, and for a total contract duration of 1,972 consecutive calendar days.
No basis exists to assess liquidated damages for delay against Western Water Constructors, Inc..
Funding, Budget and
Costs:
Funding: Project No. CUW30102, San Francisco Groundwater Supply
Original Contract Amount: $9,780,000
Modification Nos. 1 to 5: $877,447
Modification Nos. 6 to 7: $303,724
Modification No. 8 (Final): $112,601
Total Revised Contract Amount: $11,073,772
Schedule: Notice-to-Proceed Date: August 7, 2017
Original Duration: 750 consecutive calendar days
Modification Nos. 1 to 5 Duration: 214 consecutive calendar days Modification Nos. 6 to 7 Duration: 291 consecutive calendar days Modification No. 8 (Final) Duration: 717 consecutive calendar days
Total Final Contract Duration: 1,972 consecutive calendar days
Compliance with
Chapter 14B: Local
Business Enterprise
Utilization and Non-
Discrimination in
Contracting
Ordinance:
The Contract Monitoring Division (CMD) established a 15% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to a 18.72% LBE subcontractor participation in its bid submittal. The CMD has determined that th at the contractor complied with its LBE subcontracting goal by achieving a final LBE subcontractor participation of 25.98%.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Attachment: CMD Memorandum
Contract: WD-2809, San Francisco Groundwater Supply Phase 2 Commission Meeting Date: February 14, 2023
Location map:
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Groundwater Supply Project is intended to provide up to four million gallons per day of groundwater to diversify San Francisco’s municipal water supply and has been implemented over two phases ; Phase 2 of the Project involved the construction of two groundwater production well facilities and the associated groundwater transmission pipelines to pump groundwater to Sunset Reservoir for blending and distribution; and WHEREAS, On January 24, 2017, by Resolution No. 17- 0015, the Commission awarded Contract No. WD-2809, San Francisco Groundwater Supply Phase 2, to Western Water Constructors, Inc.; and
WHEREAS, Western Water Constructors, Inc. has completed its work for Contract No. WD - 2809, San Francisco Groundwater Supply Phase 2; and
WHEREAS, The construction contract Notice-to-Proceed date was August 7, 2017; and WHEREAS, The original contract amount was for $9,780,000 and the original contract duration was 750 consecutive calendar days; and
WHEREAS, On August 13, 2019, by Resolution No. 19- 0155, the Commission approved an increase of $400,000 to the contract amount contingency for a total contract amount of up to $11,158,000, and approved an increase of 250 calendar days to the contract duration contingency for a total contract duration of up to 1,075 consecutive calendar days; and WHEREAS, Modification Nos. 1 to 5 increased the contract amount by $877,447, for upsizing two surge tanks, new water services for the two well stations, furnishing and installation of piping, fittings and appurtenances with higher working pressure for the two well stations, modifications to the well pump and overboard design changes at the North Lake Well Station, system pressure design change, PG&E scheduling constraints delaying demolition of the North Lake Well Station, and extended duration of well rehabilitation at North Lake Well Station, programming and testing of electrical, instrumentation and control components, procurement and installation of architectural items, and additonal piping, pressure reducing valve, air release valves, furnishing and installation of an underground recharge chamber system and additional landscaping work at the South Windmill Well Station, and additional well rehabilitation testing, for a total contract amount of $10,657,447, and increasing the contract duration by 214 calendar days for a total contract duration of 964 calendar days; and
WHEREAS, On July 14, 2020, by Resolution No. 20- 0144, the Commission approved a n increase of $200,000 to the contract cost contingency for a total contract amount of up to to $11,358,000, and approved an increase of 180 calendar days to the contract duration contingency for total contract duration up to 1,255 consecutive calendar days; and WHEREAS, Modification Nos. 6 to 7 increased the contract amount by $303,724 and increased the contract duration by 291 consecutive calendar days to perform additional electrical; mechanical; plumbing; architectural; and landscaping work at North Lake and South Windmill Well Stations; and time extension to complete the change order work, for a total contract amount of $10,961,171, and for a total contract duration of 1,255 consecutive calendar days; and
WHEREAS, Modification No. 8 (Final) is being requested to increase the contract amount by $112,601, and increas e the contract duration by 717 consecutive calendar days to reconcile and finalize the quantities and costs of all bid items and change orders for additional electrical , mechanical, and plumbing at South Windmill Well Station; completion of remaining closeout documents; and time extension to complete the remaining contract work, for a total contract amount of $11,073,772, and for a total contract duration of 1,972 consecutive calendar days; and WHEREAS, The Contract Monitoring Division has determined that the contractor made a good faith effort to comply with the Local Business Enterprise (LBE) subcontracting goal of 1 5% for this contract by achieving a final LBE subcontractor participation of 25.98%; now, therefore, be it RESOLVED, That this Commission hereby accepts work performed by Western Water Constructors, Inc., for Contract No. WD -2809, San Francisco Groundwater Supply Phase 2; approves Modification No. 8 (Final), for an increase of $112,601, for a total contract amount of $11,073,772, and a duration increase of 717 consecutive calendar days , for a total contract duration of 1,972 consecutive calendar days; and authorizes final payment to the contractor.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of February 14, 2023.
Secretary, Public Utilities Commission
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310; Fax (415) 581-2351
London N. Breed, Mayor
Carmen Chu, City Administrator
Romulus Asenloo, Director
Date: June 10, 2022
To: Tracy Cael, SFPUC
Vanessa Orozco, SFPUC
Jeanne Sum, SFPUC
From: Kate Svyatets, CMD
Subject: Closeout for WD-2809 -- San Francisco Groundwater Supply Phase II
The Contract Monitoring Division (“CMD”) has determined that Western Water Constructors, Inc. (“Western Water”) has substantially complied with the LBE subcontracting requirement associated with this project.
At the time the project was advertised, CMD established an LBE subcontracting requirement of 15%. The Prime’s Document 00 43 36 reflected an LBE subcontracting participation of 18.72%. Western Water was awarded the contract in the amount of $9,780,000.00, which after 15 change orders was modified by $1,293,771.32 to the total amount of $11,073,771.32. The Prime’s LBE subcontracting participation at closeout is as follows:
Firm Scope of Work LBE Status Original Credited
Contract Participation
Final Credited Contract
Participation
Pump Repair
Service
Company
General Contractor
(Installation of Well
Pumps)
SF LBE-OBE
(Micro) $98,280.00 1.00% $531,540.73 4.80%
Pioneer
Contractors Inc.
Roofing Contractor-
(Bituminous
Roofing, Slate
Shingles, Zinc Wall
Panels)
SF LBE-OBE
(Small) $208,500.00 2.13% $208,500.00 1.88%
Fontenoy
Engineering
General Contractor
(Backhoe Service-
Pipeline, Earthwork,
Paving)
SF LBE-OBE
(Micro) $1,510,750.00 15.45% $2,123,668.03 19.18%
Pacific Shores
Construction
General Building
Contracting (Metal
Stud Framing &
Plywood)
SF LBE-MBE
(Micro) $13,695.00 0.14% $13,695.00 0.12%
TOTAL LBE Sub Participation $1,831,225.00 18.72% $2,877,403.76 25.98%
Per the Prime/SFPUC, the scopes of work on this project resulted in greater participation for Pump Repair Service Company and Fontenoy Engineering in their respective disciplines.
Based on the foregoing, CMD concurs with the closeout of the contract. Should you have any questions, or if I can be of further assistance, please do not hesitate to contact me at (415) 551-4335.
CONTRACT MONITORING DIVISION
OFFICE OF THE CITY ADMINISTRATOR