NIGP 18090: Sulfates, Inorganic

NIGP 18090 Sulfates, Inorganic, an Item code, covers inorganic sulfate chemicals procured by state and local water and wastewater utilities and, secondarily, by state procurement divisions serving manufacturing and institutional laundry operations. State and local governments buy aluminum sulfate solution (alum) for wastewater treatment phosphorus removal, liquid and bulk-packaged forms for treatment-plant operations, and specialty sulfates including phosphoric acid, sodium lauryl sulfate, and sodium carboxymethylcellulose for industrial and janitorial-product manufacturing. Issuing bodies include municipal water districts, city utilities, state comptroller procurement divisions operating statewide purchasing cooperatives, and special-purpose water authorities. Recent opportunities show water and wastewater utilities as the primary customer segment, with state-level cooperative purchasing also active on behalf of correctional and other institutional buyers.

Recent solicitations span Oregon, Texas, and reflect geographic concentration in water-intensive and high-population states. Clean Water Services, an Oregon water district, posted an ITB on September 17, 2026 for aluminum sulfate solution under a twelve-month supply agreement (response due September 30, 2026) requiring registration on Equity Hub's Bid Locker platform. The City of Austin posted an IFB on July 27, 2026 for liquid aluminum sulfate at its wastewater treatment facility (bids due August 25, 2026) with 5% local-business and small-business preference discounts available and an estimated annual volume of 179,200 gallons; product must meet NSF approval and AWWA B403 standards, with bidders required to maintain minimum 9,000-gallon inventory and identify distribution facilities within 500 miles. The Texas Comptroller of Public Accounts posted an IFB on August 18, 2026 covering five chemical line items including phosphoric acid and sodium lauryl sulfate for janitorial and laundry manufacturing (response due September 10, 2026) with the Texas Department of Criminal Justice as a named major customer; the contract runs through October 31, 2027 with renewal options and includes a 1.5 percent Texas SmartBuy administrative fee.