Ammonia Chemical Feed Skid

The Eastern Municipal Water District (EMWD) in Riverside County, California, is soliciting competitive proposals through RFP #3903 for the procurement of a comprehensive ammonia chemical feed skid system. The project involves transitioning the Avalon Booster Pump Station's chemical dosing system from free chlorine to total chlorine (chloramines) by purchasing two redundant ammonia (liquid ammonium sulfate) chemical feed skids, two redundant chlorine pump skids, two tank mixers, a Hach CLT10 total chlorine analyzer with ORP, a 1,550-gallon double-wall chlorine tank, a 250-gallon double-wall ammonia tank, and a control panel with SCADA connectivity. Key deliverables include pre-plumbed skids, NSF 61 certified equipment, installation and maintenance manuals, and a one-year operating guarantee. Proposers must provide detailed project schedules, equipment lead times, and complete submittal documentation within four weeks of purchase order issuance. Critical deadlines include January 27, 2026, at 4:00 PM for questions, and February 13, 2026, at 4:00 PM for electronic proposal submissions, with an anticipated award recommendation by February 20, 2026.

The RFP does not explicitly indicate specific set-aside designations or restrictions for disadvantaged enterprises. Contractors must possess a California State Contractor's License, be registered with the Department of Industrial Relations, and demonstrate compliance with Cal/OSHA safety regulations. Insurance requirements are comprehensive, including $1,000,000 in Workers' Compensation with employer's liability, $2,000,000 in Commercial General Liability, and $1,000,000 in Professional Liability Insurance. The district will retain 10 percent of the total contract amount until successful completion of the operational performance period and final acceptance. While a specific budget range is not disclosed, the complexity of the system suggests a significant investment. Evaluation criteria will likely include technical compliance, pricing, subcontractor qualifications, safety history, and the ability to meet stringent technical specifications, including NSF/ANSI 61 and NSF/ANSI 372 potable drinking water certifications.