TRWRP Sulfuric Acid Day Tank Area Rehabilitation and Replacement Project

West Basin Municipal Water District is requesting bids on rehabilitation and replacement of the sulfuric acid day tank storage area at the Torrance Refinery Water Recycling Plant in Torrance, California, under RFB, with electronic bids due July 30, 2026 at 2:00 PM and a mandatory pre-bid meeting scheduled for July 22, 2026 at 10:00 AM via Microsoft Teams. Attendance at the pre-bid meeting is mandatory for all prospective prime contractors to be eligible to bid; an optional on-site job walk follows immediately at 11:00 AM.

Scope comprises nine lump-sum bid items: mobilization and demobilization, temporary sulfuric acid system, disassembly of existing equipment, secondary containment concrete demolition and replacement, concrete coatings, reinstallation of existing equipment, startup and commissioning, and miscellaneous site improvements. Prime contractors must hold a California Class A Contractor's License. The project is subject to prevailing wage requirements established by the California Department of Industrial Relations and compliance monitoring under Labor Code Section 1771.4, including electronic certified payroll submission. Work hours are restricted to Monday through Friday, 6:30 AM to 3:00 PM; weekend and holiday work requires advance approval.

Substantial completion is required within 150 calendar days from Notice to Proceed, with final completion within 180 calendar days. Liquidated damages are $5,000 per calendar day beyond the 150-day substantial completion deadline. Bid security equal to 10 percent of the bid amount must accompany proposals. The successful bidder must provide Performance and Payment Bonds each equal to 100 percent of contract price, along with specified insurance: $5 million combined single limit Commercial General Liability, $5 million Business Automobile Liability, Workers' Compensation and Employer's Liability, Contractors Pollution Liability with $5 million limits, and Builders' Risk All Risk insurance.

West Basin Municipal Water District's Small and Local Business Enterprise Program applies, requiring prime-contractor outreach and reporting based on contract value. Questions must be submitted through the E-Procurement System's Question & Answer module by July 27, 2026 at 5:00 PM. Bids are submitted electronically through the District's OpenGov online bid portal.