City of Fresno PlanetBids #12700259

Construction of Pump Station 102A Wellhead Water-Treatment Facilities and Water-Main Connection

The City of Fresno is seeking a contractor to build wellhead treatment facilities at Pump Station 102A and connect them to Pump Station 102. - Buyer: City of Fresno — Department of Public Utilities, Water Division; solicitation office identified as the Purchasing Manager. - Scope: Construct the treatment facility and water-main connection, with site, building, piping, drainage, electrical, controls, landscaping, testing, and startup work. The stated construction allocation is $5,200,000. - Treatment system: Four 12-foot-diameter granular activated carbon (GAC) vessels, each with 714 ft³ capacity, using F-400 carbon in series; the well-pump design capacity is 1,200 GPM and vessel backwashing is sequential. - Named OEMs and products: Hach SC4500 controller (LXV525.99A11551) and NITRATAX flow cell (LXV417.99.20002); Kuntze Krypton Multi Chlor/pH-Stabiflow chlorine analyzer; Rosemount 2051 or 3051 differential-pressure transmitter; Westfall Model 6000 static mixer; and Hunter A2C-1200-M irrigation controller and HC-150-FLOW sub-meter. - Other major equipment and work: 12-inch raw-water pipeline (approximately 1,500 LF), sodium hypochlorite disinfection system with a 250-gallon tank and chemical feed pump, two bidirectional electromagnetic flowmeters, site piping, electrical and chemical enclosures, storm drainage and washwater disposal, and associated site improvements. - Notable technical requirements: The chemical tank is for 12.5% sodium hypochlorite; the chemical pump has a maximum feed rate of 1.20 GPH at a 2 mg/L dose. The pressure transmitter is specified for 4–20 mA output, an integral LCD, and a 1,000-inch water range. The static mixer may be an approved equal. - Performance period: 70 working days from Notice to Proceed.

Description

The City of Fresno seeks bids for construction of new water treatment facilities at a newly acquired property designated as Pump Station 102A, and a water main connection from Pump Station 102 to Pump Station 102A. The listed project work includes treatment vessels, piping, chemical storage and chlorination equipment, electrical, instrumentation and controls, site work, drainage, and landscaping. Bids must be submitted electronically before the public bid opening on November 17, 2026, at 3:00 PM. Bidders must hold a valid California Class A Contractor’s License; a 10% bid deposit and 100% payment and performance bonds are required. The notice states a construction allocation of $5,200,000.

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