UNSPSC 12352324: Calcium HC, chemical pool product

Calcium hypochlorite is an inorganic compound with formula Ca(OCl)2. It is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent.

UNSPSC 12352324 Calcium HC, chemical pool product is a Commodity code under which state and local governments purchase pool chemicals for aquatic facility operations, though recent solicitations reveal that buying spans far beyond the narrow "calcium HC" descriptor to encompass a full portfolio of pool treatment and sanitation chemicals—sodium hypochlorite, sodium bicarbonate, calcium hypochlorite, cyanuric acid, muriatic acid, sodium bisulfate, and specialized test reagents and monitoring equipment. Issuers include cities (Palo Alto, Milpitas, Scranton, Dallas, Austin, DeBary, Meriden), counties (Milwaukee, Collier, Gwinnett, Greenville), school districts (Pinellas County, Eanes ISD, Los Fresnos ISD, Harlingen ISD), and regional water authorities (City of Palo Alto's Regional Water Quality Control Plant, Matanuska-Susitna Borough). The work spans routine chemical supply with 24- to 48-hour delivery turnaround, bundled pool maintenance services combining chemical supply with equipment service and repair, and specialized procurement for water treatment facilities using sodium hypochlorite for wastewater disinfection. Price structures vary widely: unit-pricing-per-gallon models (City of Palo Alto RFQ 197475, approximately 130,000 gallons annually of sodium hypochlorite); percentage-discount-off-list blanket orders spanning five years (City of Milpitas IFB 26-229); and all-inclusive line-item bidding with annual adjustment caps tied to Consumer Price Index (Milwaukee County ITB 2026, estimated annual cost $311,892.80 across nine chemical line items).

Recent activity concentrates in California (Palo Alto RFQs for bulk sodium hypochlorite and muriatic acid; Milpitas five-year MRO blanket purchase), the Upper Midwest (Milwaukee County, Gwinnett County Georgia), Texas (Austin IFQ 8600 AB1000 for pool and splash pad chemicals and equipment; Eanes ISD RFP 263104151 for pool maintenance; Texas A&M ITB 26-4961 for chlorinating briquettes), the Southeast (Greenville County South Carolina RFPs 26100 and 26073 for integrated chemicals-plus-maintenance services; Collier County Florida ITB 258617 for preventative maintenance and repairs across nine aquatic facilities; City of Griffin Georgia ITB 26-008 for water treatment chemicals), and Florida (Pinellas County Schools RFQ 25-AM-018; City of DeBary splash pad maintenance). Representative recent solicitations include Milwaukee County's May 2026 invitation to bid for nine line items of pool treatment chemicals with 48-hour delivery to multiple parks and zoo facilities (contract term July 1, 2026–June 30, 2027, estimated annual cost $311,892.80); City of Palo Alto's March 2026 RFQ 197216 for bulk sodium hypochlorite and muriatic acid delivery to Rinconada Pools on a scheduled basis with same-day emergency response (approximately $240,000 over three years); Greenville County South Carolina's April 2026 RFP 26100 for integrated pool chemicals and maintenance services across twelve county facilities (single-source award, one-year initial term with four annual renewal options, contract commencing July 1, 2026); and City of Scranton's April 2026 ITB 2026-ITB-123 for eight line items of pool and splash pad chemicals with 24-hour delivery (bids due April 30, 2026). Prevailing wage, local purchasing preference, E-Verify, and insurance requirements (typically $1,000,000 general liability minimum) are standard across jurisdictions; set-aside designations for disadvantaged enterprises are rare in this code's recent activity.