UNSPSC 12163700: Gas hydrate controllers

UNSPSC 12163700 Gas hydrate controllers, a Class code, encompasses water treatment and wastewater control chemicals that state and local governments procure to manage corrosion, odor, hydrogen sulfide, and related infrastructure degradation in municipal water systems. Recent solicitations show procurement focused on liquid chemical additives—sodium bisulfite, magnesium hydroxide slurry, hydrogen peroxide, and related compounds—delivered on recurring or as-needed bases to water treatment plants, wastewater facilities, and pump stations. Water departments and municipal utilities represent the primary issuing bodies, with school districts and regional water authorities also participating. Georgia and Texas dominate recent activity, with secondary presence in Florida, Connecticut, and other states. The City of Cartersville Water Department is seeking aluminum sulfate solution, liquid lime slurry, chlorine, hydrofluosilicic acid, sodium hypochlorite, and sodium bisulfite for delivery to its treatment and pollution control plants through October 31, 2027, with bids due October 30, 2026; the City of Austin issued IFB 2200 BYS1051REBID for sodium bisulfite solution in 330-gallon totes to its wastewater treatment plants, bids due June 9, 2026; and the City of Tallahassee solicited magnesium hydroxide slurry under IFB-067-26-CPW for a five-year initial term with optional two-year renewals, sealed bids due June 16, 2026.

Procurement activity is concentrated among municipal water utilities and independent school districts operating their own treatment infrastructure. The Macon Water Authority, City of Griffin, City of Meriden, and City of Temple issued parallel solicitations for annual or multi-year chemical supply agreements on a line-item basis, allowing suppliers to bid on individual chemicals rather than bundled contracts. NSF-60 certification, AWWA standards compliance, and 48-to-72-hour delivery capability are standard requirements. Award is typically made to the lowest responsive and responsible bidder on individual line items, with some jurisdictions (Austin, Tallahassee, Temple) applying local-business evaluation discounts or preferences. Contract terms range from one year with renewal options to five-year firm-fixed-price agreements with economic adjustment caps. Performance bonds, insurance requirements, and background clearances for facility access appear in larger, longer-term solicitations. The code shows consistent activity across municipal water systems; Dallas ISD's broad RFP for district-wide water treatment services (proposals due October 15, 2026) and the City of Lubbock's SOQ for wastewater land application consulting (due September 30, 2026) signal expanding scope beyond commodity chemical supply into specialized treatment operations and compliance engineering.