Preventative Maintenance for Activated Sludge 2 Blowers at Plant No. 1

Orange County Sanitation District (OC San) is requesting proposals for preventative maintenance services on four TURBLEX/HV-TURBO Single-Stage Centrifugal Blowers at Plant No. 1 Activated Sludge Facility No. 2, with proposals due July 22, 2026, and mandatory attendance at a pre-proposal meeting on June 30, 2026 at 10:00 a.m. at the facility in Fountain Valley, California.

Proposers must hold a valid California Contractor's License Class A and be registered with the California Department of Industrial Relations. Prevailing wage requirements under California Labor Code Sections 1770–1780 apply, with penalties of $50 per worker per day for non-compliance. Contractors must provide proof of insurance, safety certifications, and submit OSHA 300/300A logs and safety declarations.

The blowers supply compressed air to six aeration basins supporting the conventional activated sludge process. The contract term is forty-nine calendar days from Notice to Proceed. Proposals are evaluated on best-value basis: Qualifications of the Firm (300 points), Staffing and Project Organization (200 points), and Work Plan (300 points) account for 800 points combined; cost scoring awards 200 points to the lowest-cost proposal. Questions are due July 6, 2026 at 2:00 p.m. Proposals must remain valid for a minimum of 180 calendar days from submission. Attendance at the June 30 pre-proposal meeting is mandatory for proposal eligibility. Payment is made Net 30 days upon approval by the Project Manager, with invoices submitted in duplicate. OC San reserves the right to reject all proposals and negotiate with multiple proposers concurrently.