Iron and Manganese Treatment at Well 31

The City of Clovis is requesting sealed bids for iron and manganese treatment infrastructure at Well 31, with bids due November 10, 2026 at 2:00 p.m. at the Clovis Civic Center. Bidders must hold a valid California Class A Contractor License and provide proof of California Department of Industrial Relations registration prior to award.

The scope encompasses furnishing all labor, materials, services, and equipment for well site piping, treatment vessel procurement and installation, concrete and surface improvements, electrical improvements, and backwash infrastructure improvements with connection to the existing sanitary sewer along Leonard Avenue. The bid comprises 14 line items submitted as lump-sum amounts covering mobilization, traffic control, CALGreen compliance, dust control, worker protection, site preparation, grading, sewer installation, backwash disposal standpipe, filter vessel pad, filter vessels, and electrical/instrumentation/controls work.

Construction begins June 7, 2027, with work to be completed within 35 working days from Notice to Proceed. Specific milestone deadlines are established for submittal review (15 working days), demolition and site preparation (5 working days), on-site piping (10 working days), backwash disposal system (20 working days), filtration vessel installation and electrical work (25 working days), testing and startup (30 working days), and final completion (35 working days). Liquidated damages accrue at $1,000 per calendar day for delays.

Each bid must be accompanied by a certified or cashier's check or bid bond equal to at least 10 percent of the bid amount. The awarded contractor must furnish performance and payment bonds at 100 percent of contract value. The project is subject to prevailing wage requirements and California Department of Industrial Relations compliance monitoring with electronic certified payroll reporting. Five percent retention is withheld from progress payments and released 35 days after City Council approval for final acceptance.