DATE: March 26, 2024
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Title
Adopt a Resolution Authorizing the City Manager to Execute a Professional Services Agreement with Carollo Engineers for Construction Management for the Water Resource Recovery Facility (WRRF) Improvements - Phase II Project, Project Nos. 07749, 07760 and 07786, in an Amount Not-to-Exceed $949,625
End
RECOMMENDATION
Recommendation
That Council adopts a resolution (Attachment II) authorizing the City Manager to execute a professional services agreement (PSA) with Carollo Engineers in an amount not-to-exceed $949,625 for preconstruction construction management work for the WRRF Improvements - Phase II Projects, Project Nos. 07749, 07760 and 07786.
End
SUMMARY
The Water Resource Recovery Facility (WRRF, formerly WPCF) treats an average flow of approximately eleven million gallons per day (MGD) and meets current regulatory requirements for discharge of treated effluent to the deep waters of the San Francisco Bay. However, the current draft of the Regional Water Quality Control Board watershed permit, which is scheduled for adoption and planned to go into effect in August 2024, requires a 50% reduction in nutrients by 2034. In preparation to meet the new requirements, design is underway on improvements, with three separate construction bid packages planned for advertisement between late 2024 and late 2025. The proposed improvements include a new administration and laboratory building, relocated primary effluent equalization tanks, a new biological nutrient removal (BNR) process, a new grit removal facility, modifications to the existing solids contact tank, demolition of the functionally obsolete existing west trickling filter, and related ancillary facilities including pump stations, new aeration blower facilities, new process piping, and electrical infrastructure to support the new facilities. Due to the size, complexity, ...
Click here for full text