DEPARTMENT
Infrastructure
AGENDA NO.
6i
MEETING DATE
January 10, 2023
APPROVAL:
COMMISSION
SECRETARY
Donna Hood
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Construction Modification: Consent Calendar
Contract Manager: Jignesh Desai
Approve Increase to Construction Duration Contingency for WW-685R, North Shore Pump Station Wet Weather Improvements
Summary of Proposed
Commission Action:
Approve an increase of 250 calendar days (approximately nine months) to the contract duration contingency for Contract No. WW-685R, North Shore Pump Station Wet Weather Improvements , with Western Water Constructors, Inc., to address COVID supply chain delays related to the procurement of dry weather liquid pumps ; and authorize the General Manager to approve future modifications to the contract for a total contract duration of up to 1,075 consecutive calendar days (approximately three years), with no change to contract amount.
Background: The objective of the WW -685R, North Shore Pump Station Wet Weather Improvements project is to provide redundant effluent pumping capacity at North Shore Pump Station during wet weather.
This project will replace the four
existing dry weather pumps with
larger capacity units so that they are capable of pumping redundant capacity during wet weather. The project also includes upgrades to the motor control centers and distributed control system. The implementation of this project will ensure reliable and effic ient operation in keeping with the level of service and maintain regulatory compliance.
In addition, HVAC, Mechanical, Fire Protection, Electrical, and Architectural work is included for the DCS Server Room, Building 930 of the Southeast Water Pollution Control Plant.
On January 26, 2021, by Resolution No. 21- 0006, this Commission awarded Contract No. WW-685R, North Shore Pump Station Wet Weather Improvements to Western Water Constructors, Inc. The original contract amount was $26,010,000 , and the original contract duration was 750 consecutive calendar days.
Contract: WW-685R, North Shore Pump Station Wet Weather Improvements Commission Meeting Date: January 10, 2023
Due to supply chain delays related to COVID, procurement of d ry weather liquid pumps has been impacted. T he Contractor requires additional time to procure and perform the necessary installation.
Description of Scope of
Work:
The contract work locations are in San Francisco, CA at the North Shore Pump Station and Southeast Treatment Plant . The contract work includes, but is not limited to, the following:
At North Shore Pump Station:
• Replacement of four dry weather pumps;
• Replacement and extension of discharge piping, select portions of 36” headers, and associated mechanical equipment;
• Upgrade of the existing dewatering system;
• Ferrous chloride systems upgrades;
• Replacement of east and west channel bar screens;
• Installation of City-furnished hydraulic actuators;
• Modernization of personnel elevator;
• HVAC upgrades;
• Structural upgrades for dry weather pumps, piping, ferrous chloride tank pads, and other mechanical appurtenances; • Lighting replacement and upgrades;
• Reroofing;
• Instrumentation and Control work including Distributed Control System installation and integration;
• Electrical upgrades including motor control center
modification and replacement, emergency radio
communication work;
• Site grading and paving; and
• Sewer lateral installation.
At the Southeast Treatment Plant:
• HVAC split system installation;
• Uninterruptable power source and distribution panel
installation;
• Design-build fire protection work; and
• Associated architectural work.
Changes and
Modifications to the
Contract:
Requested Increase to Contract Duration Contingency
Staff requests approval of an increase of 250 calendar days to the existing contract duration contingency to account for COVID supply chain delays related to the procurement of dry weather liquid pumps , for a Contract: WW-685R, North Shore Pump Station Wet Weather Improvements Commission Meeting Date: January 10, 2023
total contract duration of up to 1,075 consecutive calendar days, which includes the original duration contingency of 75 days , with no change to the contract amount.
Funding, Budget &
Costs:
Funding: Project No. CWWSIPTPNP02, North Shore P ump Station Wet Weather Improvements
Original Contract Amount: $26,010,000
Original 10% Cost Contingency: $2,601,000
Total Contract Cost Limit: $28,611,000
Schedule: Notice-to-Proceed Date: April 19, 2021
Original Contract Duration: 750 consecutive calendar days Original 10% Duration Contingency: 75 calendar days
Requested Additional Duration Contingency: 250 calendar days Total Revised Contract Duration Limit: 1,075 consecutive calendar days
Compliance with
Chapter 14B: Local
Business Enterprise
Utilization and Non-
Discrimination In
Contracting Ordinance:
The Contract Monitoring Division established a n 11% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to a n 11.67% LBE subcontractor participation with its bid submittal.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Contract: WW-685R, North Shore Pump Station Wet Weather Improvements Commission Meeting Date: January 10, 2023
Location map:
Northshore Pump Station and Southeast Water Pollution Control Plant
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) Wastewater Enterprise facilities include the Northshore Pump Station and Southeast Treatment Plant, both of which require new mechanical and electrical components to ensure reliable and efficient operations; and
WHEREAS, On January 26, 2021, by Resolution No. 21-0006, this Commission awarded the Contract No. WW-685R, North Shore Pump Station Wet Weather Improvements to Western Water Constructors, Inc.; and
WHEREAS, The construction contract Notice-to-Proceed date was April 19, 2021; and WHEREAS, The original contract amount was for $26,010,000 and the original contract duration was 750 consecutive calendar days; and
WHEREAS, Staff requests a n increase of 250 calendar days to the contract duration contingency to account for COVID supply chain delays related to the procurement of dry weather liquid pumps; and
WHEREAS, Contract Monitoring Division established an 11% Local Business Enterprise (LBE) subcontracting participation for this contract, and the contractor committed to a n 11.67% LBE subcontractor participation with its bid submittal; now, therefore, be it RESOLVED, That this Commission hereby approves an increase of 250 calendar days to the existing contract duration contingency for Contract No. WW-685R, North Shore Pump Station Wet Weather Improvements , for a total contract duration contingency amount of up to 325 calendar days; and be it
FURTHER RESOLVED, That this Commission hereby authorizes the General Manager, or his or her designee, to consider, and, if appropriate, to approve any future modifications to the contract duration for a total contract duration of up to 1,075 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 January 10, 2023.
Secretary, Public Utilities Commission