NIGP 88594: Water Treating Chemicals (Not Otherwise Classified)

NIGP 88594 Water Treating Chemicals (Not Otherwise Classified), an Item code, encompasses chemical products that state and local governments purchase for drinking water treatment, wastewater treatment, and biosolids processing when no more specific NIGP code applies. Recent solicitations show governments buying PFAS removal media systems, activated carbon, liquid polymers for biosolids dewatering, sodium hypochlorite, sodium bisulfite, liquid lime slurry, aluminum sulfate, chlorine, flocculant polymers, hydrochloric acid, and specialty treatment chemicals for both potable and wastewater applications. Issuing bodies span state environmental agencies, county water authorities, municipal water departments, regional utilities, and special-purpose water and sewer districts. State environmental service departments in Maryland and Arizona are repeat buyers, as are city water utilities across Florida, Georgia, and the Southwest. The code draws activity from Arizona, Florida, Georgia, Kansas, Maryland, Massachusetts, North Carolina, Oregon, Pennsylvania, and Utah, with particular density in the Mid-Atlantic and Southeast.

Representative recent opportunities include the Town of Prescott Valley, Arizona's RFP (posted October 18, 2026, due November 17, 2026) for a 250-gallon-per-minute PFAS removal pressure vessel system with federal compliance requirements under Build America Buy America and American Iron and Steel Acts; Maryland Environmental Service's sealed-bid procurements for liquid emulsion polymer at multiple wastewater treatment plants (Dorsey Run AWWTP, Frostburg WTP) due in mid-November 2026; Collier County, Florida's ITB for countywide chemicals (posted October 13, 2026, due November 13, 2026) covering 29 line items across water and wastewater treatment with historical annual spending around $4 million; and Rockland County Sewer District #1's RFB for chemical degreaser (posted October 15, 2026, due November 12, 2026) requiring pre-approval of alternate formulations. Most procurements award by lowest responsive, responsible bidder on a line-item or lump-sum basis, with contract terms typically one to four years and firm pricing for the initial year.