UNSPSC 47101603: Descalers

UNSPSC 47101603 Descalers, a Commodity code, covers chemical descaling and scale-control products that state and local governments procure for water and wastewater treatment operations. Recent solicitations show that municipalities and water authorities are actively buying descaling compounds—including sodium bisulfite, magnesium hydroxide slurry, and liquid hydrogen peroxide—deployed for corrosion control, odor suppression, hydrogen sulfide mitigation, and residual chlorine reduction at treatment plants, pump stations, and lift stations. Water departments issue the bulk of solicitations under this code, with representatives including the City of Cartersville Water Department, Dallas Independent School District, Gwinnett County, the City of Lubbock, the Macon Water Authority, and the City of Tallahassee. Scope varies from single-chemical line-item procurements to multi-chemical supply agreements; suppliers typically bid individual product lines and are evaluated on price, NSF/AWWA certification compliance, delivery speed (often within 48–72 hours), and references from prior municipal customers. All chemicals must meet NSF Standard 60 or equivalent federal and state water treatment standards, with many subject to Buy America or domestic-content compliance when federal funds are expended.

Activity clusters in the Southeast and South-Central regions, with recent opportunities posted from Georgia (Cartersville, Gwinnett County, Griffin, Macon, Tallahassee), Texas (Dallas ISD, Lubbock, Temple, Austin), Florida (Orlando, Tallahassee), and Connecticut (Meriden). The City of Cartersville Water Department issued an IFB for aluminum sulfate solution, liquid lime slurry, chlorine, hydrofluosilicic acid, sodium hypochlorite, and sodium bisulfite with a deadline of October 30, 2026; Dallas Independent School District released an RFP for district-wide water treatment services (response date October 15, 2026) emphasizing SBE participation with up to 20 evaluation points; and the City of Tallahassee solicited magnesium hydroxide slurry supply through a five-year firm-fixed-price requirements contract (bids due June 16, 2026). The City of Austin procured sodium bisulfite solution for wastewater treatment plants under a rebid (IFB 2200 BYS1051REBID, due June 9, 2026), and the City of Temple issued an ITB for liquid ammonium sulfate to supply two water treatment plants (bids due June 10, 2026). Contracts typically run one to five years with renewal options and are awarded to the lowest responsive and responsible bidder based on price, quality, performance history, and local-preference or SBE scoring where applicable.