UNSPSC 12163900: Scale controllers

UNSPSC 12163900 Scale controllers is a Class code that encompasses water treatment chemical supplies and services for municipal drinking water and wastewater systems. State and local governments procure chemicals such as aluminum sulfate, chlorine, caustic soda, sodium hypochlorite, magnesium hydroxide, ammonium sulfate, citric acid, and ferric chloride under this code, along with associated treatment system maintenance, chemical feed equipment, monitoring technologies, and technician site visits. Recent solicitations reflect a heavy emphasis on NSF 60 and AWWA certification compliance, with suppliers expected to deliver specialized products on tight schedules (often within two to five business days) to water treatment plants, wastewater facilities, and utility pump stations. The issuing bodies span county departments (Sarasota County, Collier County, Gwinnett County, Palm Beach County, Indian River County), municipal utilities (Tampa Convention Center, City of Dublin, City of LaGrange, City of Tallahassee, City of Jackson, City of Griffin, City of Santa Cruz, Eastern Municipal Water District), regional water authorities (Great Lakes Water Authority, Upper Trinity Regional Water District), and special-purpose districts (Central Florida Tourism Oversight District). School districts and individual cities round out the buyer base, with recurring suppliers appearing across multiple jurisdictions.

Recent activity concentrates in Florida (Sarasota County, Collier County, Palm Beach County, Indian River County, Tampa, Tallahassee, St. Petersburg) and Georgia (Gwinnett County, City of LaGrange, City of Dublin, City of Flowery Branch, City of Griffin, Douglasville-Douglas County Water and Sewer Authority, City of Thomson), with additional solicitations in California (Santa Cruz, Eastern Municipal Water District serving Riverside and San Diego counties), Michigan (Great Lakes Water Authority), Texas (Upper Trinity Regional Water District), Missouri (Parkway School District), Connecticut (City of Meriden), and Florida-based state-level procurement (Palm Beach County on behalf of the State of Florida for calcium chloride de-icing). Representative recent opportunities include the Collier County sealed-bid procurement (IFB 26-8683, July 1, 2026 deadline) for $3.29 million in lime softening improvements with chemical injection systems and reinforced concrete structures; Gwinnett County's competitive bid for solids dewatering polymer (BL076-26, July 30, 2026 deadline) on a four-year annual contract with mandatory performance testing; the City of Meriden's ITB for seven water treatment chemicals (ITB B026-55, June 25, 2026 deadline) with U.S. manufacturing requirements for hypochlorite and permanganate; and the City of Dallas's thirty-six-month ID/IQ agreement for sewer odor and corrosion control services (Bid BR2600030262, June 26, 2026 deadline) valued at $10 million with SBE participation goals. The code also captures one proprietary inoculant sole-source procurement (Hillsborough County, March 6, 2026 deadline, $515,625 over five years for biosolids composting support). School districts and municipal water systems dominate repeat buying, with summer and early-fall fiscal-year renewals driving activity. Delivery performance, NSF certifications, and ability to service multiple locations are baseline competitive factors across all recent opportunities.