Summary
The San Francisco Public Utilities Commission (SFPUC) is soliciting design-build proposals for Contract DB-142 to upgrade the on-site non-potable water treatment system (ONWS) at its headquarters, 525 Golden Gate Avenue, to comply with the State Water Resources Control Board Department of Drinking Water regulations and San Francisco Health Code requirements. The scope includes providing an on-site non-potable treatment system for in-building non-potable uses, a potable treatment demonstration system for limited public tastings, and system upgrades that minimize potable makeup water and simplify operations. Proposers must submit electronic proposal packages by August 26, 2026 (2:00 PM local time); a site inspection is scheduled for July 15, 2026 at 10:00 AM and questions/deadlines are noted in the solicitation documents.