Description: The City and County of San Francisco, acting by and through the San Francisco Public Utilities Commission, is soliciting proposals from prequalified firms, teams, joint ventures, or other prequalified business entities for competitive Design-Build Contract DB-140 at the Southeast Water Pollution Control Plant, rather than a grant program. The work rehabilitates the plant's secondary clarifiers, which separate activated sludge from treated wastewater and return activated sludge to aeration tanks while transferring waste activated sludge to solids-handling facilities. The posting describes sixteen reinforced-concrete circular sedimentation tanks arranged in North and South groups, with associated diffusers, gates, valves, and sludge/scum collection equipment.
City · CA, US
Original attachments and procurement documents tied to this bid.
No files attached to this RFP.
Many agencies add documentation later or require FOIA requests. Starbridge can automatically retrieve these files for you.
Request File RetrievalAdjacent opportunities open for bidding right now.
Oct 8, 2025
Closes
Aug 19, 2026
Provide water pollution control plant, secondary clarifiers rehabilitation. Separate the activated sludge in the mixed liquor from the treated wastewater. Return activated sludge is returned to the aeration tanks and waste activated sludge is transferred to the solids handling facilities.
CityGA
Aug 10, 2026
Closes
Sep 17, 2026
The City of Social Circle, Georgia is seeking contractors for significant upgrades to its Little River Water Pollution Control Plant and sewerage system. Contract 1 covers approximately 3,600 linear feet of DIP and PVC sewer with manholes, jack-and-bore work, rock excavation, clearing, and erosion and sediment controls, while Contract 2 covers new treatment-process and support facilities including aeration basins, clarifiers, tertiary filters, ultraviolet disinfection, pumping, chemical feed, control, digestion, and sludge-dewatering facilities. The Georgia Procurement Registry identifies this as a construction/public-works procurement rather than a grant, requiring a State of Georgia Utility Contractor License and a state Utility Manager certificate holder, with listed completion periods of 270, 480, and 540 days.
Eastern Municipal Water District
Special DistrictCA
Jul 15, 2026
Closes
Aug 13, 2026
The Eastern Municipal Water District (EMWD) is soliciting bids for the PVRWRF Secondary Clarifiers 5, 6, and 8 Rehabilitation Project (Specification No. 1592S), a public works construction project located at the Perris Valley Regional Water Reclamation Facility at 1301 Case Road, Perris, California. The scope of work includes the removal and replacement of secondary clarifier mechanisms and accessories within existing Secondary Clarifier Nos. 5, 6, and 8, including new spiral scrapers, center column, feedwell, floor baffle, bridge, scum trough, scum baffle, scum weir, Stamford baffle, and electrical and control elements. The District has shortlisted two secondary clarifier mechanism manufacturers to be used without equal, and the project duration is 730 calendar days, with bonds required and prevailing wages applicable.
Jul 23, 2026
Closes
Aug 19, 2026
The work includes removal and disposal of (4) existing dust collectors on the roof of the south water treatment plant and installation of new dust collectors, compressor and dryer, pressure relief valves, piping, and associated electrical facilities and controls and other appurtenant and related items of construction. The work also includes modifications to an existing crane system including foundation modifications, installation of frames, removal of the existing coiling door and replacing with a double door.
Procurement and program contacts connected to City and County of San Francisco.
