UNSPSC 12163900: Scale controllers

UNSPSC 12163900 Scale controllers, a Class code, encompasses chemical treatment products and services for water and wastewater infrastructure—specifically treatment chemicals, decontamination agents, and related supply contracts that state and local water utilities, municipalities, and treatment authorities purchase to manage drinking water quality, wastewater processing, and system maintenance. Recent solicitations show state and local governments buying sodium hypochlorite, liquid chlorine, aluminum sulfate, caustic soda, polymers, hydrogen peroxide, oxygen, sulfur dioxide, and specialized decontamination products (such as grease busters for wet wells) delivered in bulk totes, cylinders, or drums on monthly or annual contract terms.

Water and wastewater utilities dominate the issuing-body mix, including city water departments, county water authorities, regional water treatment authorities, and special-purpose sewer districts across Florida, Georgia, Texas, Oregon, and the upper Midwest. Collier County Board of Commissioners, City of Waco, Rockland County Sewer District #1, Clean Water Services District (Oregon), and Cobb County-Marietta Water Authority appear in multiple recent solicitations. Representative opportunities include Rockland County Sewer District #1 issuing an RFB for chemical degreaser (response date November 12, 2026), Pike County Water & Sewerage Authority issuing an IFB for filter backwash water treatment construction (due November 13, 2026), Collier County issuing an ITB for countywide chemicals covering 29 line items for water and wastewater treatment across multiple facilities (due November 13, 2026 with historical annual spend approximating $4 million), City of Waco issuing multiple RFBs for liquid oxygen, sodium hydroxide, liquid chlorine, aluminum sulfate, polymers, and related treatment chemicals (multiple responses due August 20–21, 2026), and City of LaGrange, Georgia issuing sealed bids for eight chemical line items including activated carbon, aluminum sulfate, chlorine, and caustic soda (due June 8, 2026). Geographic activity concentrates in Florida, Georgia, and Texas, with secondary activity in Oregon, Connecticut, and California. Contract terms typically run one to four years with annual price-hold requirements and delivery mandates of 24–96 hours after order placement. Most solicitations require NSF 60/61 certification and AWWA compliance; many include local-vendor preferences and SBE participation goals.