UNSPSC 12161706: Neutral buffers

UNSPSC 12161706 Neutral buffers is a Commodity code that encompasses the supply and delivery of chemical treatment agents used in municipal and regional water and wastewater treatment operations, particularly lime-based and acid-based products that manage pH, turbidity, and corrosion in treatment processes. State and local governments procure quicklime (calcium oxide), hydrated lime, lime slurry, hydrochloric acid, citric acid, and related chemical treatment compounds for water reclamation, distribution system maintenance, and wastewater processing. Procurement spans city water departments, water treatment authorities, regional water resource recovery districts, and special-purpose water utilities. Issuing bodies include city public works departments and water services divisions, county water reclamation facilities, regional treatment districts, and school districts with pool operations. Recent solicitations show active purchasing across multiple issuing bodies with overlapping service areas, particularly within Florida water systems and distributed across western and southeastern jurisdictions.

Geographic activity concentrates in Florida (City of Holly Hill, City of St. Petersburg, City of Cocoa, Pinellas County schools, City of Valdosta, City of Cartersville, Sarasota County) and the western United States (City of Phoenix, Sandy City Utah, Clean Water Services Oregon), with additional activity in Connecticut, Georgia, and Arizona. Representative recent opportunities include the City of St. Petersburg's IFB-26-344 for calcium oxide delivery to the COSME Water Treatment Plant with bids due October 29, 2026, emphasizing NSF compliance, SBE/MBE/WBE participation requirements, 24-hour emergency contact, and a three-year initial term with two optional one-year renewals; Sandy City's competitive IFB for Type C sodium chloride winter road salt supply (3,500–7,500 tons annually) with delivery capability as a critical evaluation factor, bids due October 22, 2026; the City of Cocoa's ITB B2617COC for liquid sodium hypochlorite with a 5 percent local preference for Brevard County contractors, bids due September 23, 2026, and a one-year firm pricing period with Producer Price Index adjustments permitted thereafter; and the City of Cartersville's line-item ITB for multiple treatment chemicals (aluminum sulfate, lime slurry, chlorine, sodium hypochlorite) across two facilities, bids due October 30, 2026, with 72-hour delivery capability required. Sole-source procurements appear when proprietary equipment integration is required, as in the City of Holly Hill's notice for Chemco Systems lime slaking system replacement parts and the Andritz Separation procurement for separator components. Bid bonds (typically 5–10 percent), performance bonds, insurance requirements ($1 million general and auto liability standard), NSF/AWWA certification, and delivery-speed performance guarantees feature across most recent solicitations. Annual contract volumes range from approximately 1,800 dry tons for larger municipal systems to specialized on-demand quantities for smaller or supplemental operations.