NIGP 88516: Algae and Microbe Control Chemicals (for Air Conditioning and Cooling Water)

NIGP 88516 Algae and Microbe Control Chemicals (For Air Conditioning and Cooling Water), an Item code, represents a narrow slice of the broader water treatment chemical market that state and local governments procure. Recent solicitations reveal that this code actually encompasses a much wider range of chemicals—coagulants, disinfectants, pH stabilizers, polymers, and treatment additives—used across drinking water and wastewater treatment plants, with only occasional references to cooling water or microbe control chemicals specifically. Municipal water authorities and city departments dominate the issuing-body mix, soliciting under this code through ITBs and RFPs. Pennsylvania water authorities (Municipal Authority of Westmoreland County, Warwick Township Water and Sewer Authority, Berks-Montgomery Municipal Authority) are repeat buyers posting multiple contracts in June and July 2026 for liquid chlorine, caustic soda, polyaluminum chloride, sodium hypochlorite, ferric chloride, and granular activated carbon. School districts (Parkway School District in Missouri, Florida School for the Deaf and the Blind) and special-purpose districts (Central Florida Tourism Oversight District, Tampa Bay Water) round out the buyer base, each seeking bulk chemical supply for treatment operations.

Geographic activity concentrates in Pennsylvania, Florida, Georgia, Massachusetts, Arizona, and California, with Pennsylvania and Florida showing the highest frequency of recent postings. Representative opportunities include the Municipal Authority of Westmoreland County's July 29, 2026 IFB for virgin granular activated carbon (due July 29, 2026), Berks-Montgomery Municipal Authority's July 22, 2026 bid for liquid aluminum sulfate for phosphate removal (due July 22, 2026), and the City of Griffin, Georgia's May 28, 2026 IFB for 16 different water treatment chemicals including sodium hydroxide, hydrated lime, and liquid chlorine (due May 28, 2026). Tampa Bay Water posted three separate ITBs in May and June 2026 for ammonium sulfate, sodium hypochlorite, quicklime, and ferric sulfate supply, all due June 30, 2026. Pricing is typically firm for the contract term with deliveries within 48 to 72 hours, NSF/ANSI 60 certification and certificates of analysis are standard requirements, and most contracts include 1 to 3-year terms with optional renewal periods at the buyer's discretion.