Wastewater Treatment Plant & Recycled Water Upgrades

The City of Banning, California is requesting proposals from qualified engineering consulting firms to provide professional engineering design, permitting support, bidding assistance, and optional construction-phase services for the phased modernization and expansion of the City's Wastewater Treatment Plant and recycled water facilities under RFP 26-139, with proposals due September 18, 2026 at 4:00 p.m. A mandatory pre-proposal meeting is scheduled for August 17, 2026 at 10:00 a.m. at City Hall.

The scope encompasses multidisciplinary professional services including project management, existing facilities evaluation, basis of design reporting, detailed hydraulic and process engineering, civil, structural, architectural, mechanical, and electrical engineering design, instrumentation and SCADA systems design, cost estimating, value engineering, environmental compliance and permitting support, and bidding assistance. The WWTP, located at 2242 East Charles Street, currently operates at 3.6 million gallons per day design capacity with approximately 2.1 MGD discharge and must expand to approximately 4.8 MGD with Title 22 tertiary recycled water production and future reverse osmosis capabilities. Deliverables include a complete Plans, Specifications, and Estimates set suitable for public bidding, with milestone submissions at basis of design, 30%, 60%, 90%, and 100% design phases through September 30, 2027.

Firms must hold minimum five years of proven experience in similar municipal wastewater treatment projects and possess California Secretary of State business registration and Department of Industrial Relations registration. Proposers must provide fully itemized fee proposals broken down by phase and task with estimated work hours and labor classifications, plus separate estimates for optional construction-phase engineering and optional Phase II reverse osmosis and brine management facility services. The project involves federal funding through a Bureau of Reclamation Title XVI grant requiring compliance with Buy America, Davis-Bacon, and grant reporting requirements.

The initial contract term extends through December 31, 2029, with options for up to two additional one-year extensions, not to exceed five years total. Evaluation weightings are qualifications (25 points), experience with similar projects (20 points), approach and methodology (30 points), professional references (10 points), value-added services (5 points), and pricing (10 points). Questions are due September 4, 2026 at 12:00 p.m. Anticipated vendor selection is October 1, 2026, with a Notice to Proceed targeted for November 2, 2026.