Liquid ammonium sulfate 40% blend

The Eastern Municipal Water District (EMWD) in Riverside County, California is conducting a competitive Request for Proposal (RFP #3924) for the supply and delivery of bulk liquid ammonium sulfate with a 40% solution blend, certified to ANSI/NSF 60 and AWWA B302-10 standards for municipal water treatment applications. EMWD anticipates purchasing approximately 100,000 gallons annually for delivery to ten designated facilities throughout the district's service area in Riverside and San Diego counties, with actual quantities subject to variation based on operational needs. Deliveries must be made on an as-needed basis within five calendar days of notification during standard operating hours (7:00 a.m. to 3:00 p.m., Monday through Friday), with provisions for emergency 24-hour deliveries when required. Qualified proposers must demonstrate a minimum of five years' experience providing similar services to public agencies, submit three professional references, provide product compliance documentation including Safety Data Sheets and certifications, and demonstrate CAL/OSHA compliance history. The RFP requires tiered pricing based on volume brackets (1-250 gallons, 251-500 gallons, 501-1,000 gallons, and 1,001+ gallons) with all-inclusive costs covering labor, materials, equipment, transportation, overhead, profit, insurance, and applicable taxes. The question submission deadline is 4:00 p.m. on March 10, 2026, with electronic proposals due by 4:00 p.m. on March 19, 2026; the evaluation process begins March 23, 2026, with supplier recommendation by March 30, 2026, and Board recommendation by May 6, 2026, with an anticipated agreement start date of June 15, 2026.

The RFP does not indicate specific set-aside designations or restrictions limiting responses to particular organization types or disadvantaged enterprises. Successful proposers must provide a Supply Bond equal to 100% of the total contract value and obtain Commercial General Liability Insurance with limits of $2,000,000 per occurrence and $5,000,000 aggregate, Commercial Automobile Liability Insurance with $2,000,000 combined single limits, Workers' Compensation and Employer's Liability Insurance, and Contractors Pollution Liability Insurance with $5,000,000 per claim limits. For bids of $1,000,000 or more, proposers must complete an Iran Contracting Act Certification, and all proposers must submit Contractor Mobile Source Acknowledgement Forms certifying compliance with California Air Resources Board regulations regarding off-road diesel equipment and vehicle maintenance programs. The contract term shall be five years with firm-fixed pricing for the first year, followed by one annual price adjustment permitted on each anniversary date not to exceed three percent, substantiated by documentation of supply price increases, governmental regulatory increases, or Consumer Price Index or Producers Price Index increases. No incumbent vendors or current contractors are identified in the available documentation, and no specific award value or budget range is disclosed; however, the anticipated annual volume of approximately 100,000 gallons provides a basis for cost estimation by prospective proposers.