NIGP 88560: Ferrous Sulfate and Ferrous Chloride

NIGP 88560 Ferrous Sulfate and Ferrous Chloride, an Item code, encompasses chemical additives used in municipal water treatment and wastewater processing — specifically ferrous sulfate (FeSO4), ferrous chloride (FeCl2), and related iron salt compounds deployed to control odor, reduce corrosion, and support solids management in treatment infrastructure. State and local governments procure these chemicals as operational supplies for water utilities, environmental treatment facilities, and collection systems, typically under annual or multi-year service contracts with volume-driven or as-needed pricing structures. The issuing bodies are municipal water and wastewater departments and county water resources agencies, soliciting through competitive sealed bids (IFB), indefinite-quantity agreements, and line-item purchase arrangements. Suppliers must meet American Water Works Association and NSF standards, provide certificates of analysis with deliveries, and often undergo performance testing before contract award.

Recent solicitation activity spans Georgia, Florida, and Texas. The City of Dallas issued a 36-month Indefinite Delivery/Indefinite Quantity RFQ for sewer odor and corrosion control services—including liquid ferrous iron salt and liquid ferrous chloride injection into wastewater infrastructure—with an estimated contract value of $10 million, a mandatory Small Business Enterprise goal under the DRIVE Policy, and a local vendor preference; bids were due June 26, 2026. Gwinnett County, Georgia posted a competitive sealed bid (IFB) for solids dewatering and thickening polymer on an annual contract with a four-year initial term beginning October 19, 2026, due July 30, 2026; while this opportunity emphasizes polymer rather than ferrous chemicals, the procurement model—multi-year framework with mandatory performance testing and cost-per-unit-of-material evaluation—mirrors chemical supplier contracting in the code. The City of Griffin, Georgia solicited water treatment chemicals including aluminum sulfate on a line-item basis for Fiscal Year 2027 with up to four one-year renewal options, due May 28, 2026. Pasco County, Florida posted an as-needed RFQ for copper sulfate crystals and liquid copper sulfate, due June 26, 2026. Activity clusters in the Southeast and South, with municipal utilities and county environmental departments as primary buyers.