UNSPSC 12164300: Iron controllers

UNSPSC 12164300 Iron controllers, a Class code, encompasses water treatment chemical supply and delivery to municipal water and wastewater treatment facilities, with recent solicitations dominated by calcium oxide (lime), sodium hypochlorite, hydrochloric acid, and specialty treatment compounds delivered on recurring contract cycles. State and local water departments and utilities issue most solicitations under this code as ITBs and RFQs with firm annual or multi-year terms; issuers include city water departments (St. Petersburg, Phoenix, Jackson, Griffin, Cartersville, Cocoa), county water authorities (Gwinnett County, Sarasota County), water resource recovery districts (Clean Water Services in Oregon), and specialized municipal departments (Valdosta, Meriden, Holly Hill, Tucson). Repeat buyers include Florida municipal water systems across multiple coastal and inland jurisdictions. NSF 60/61 certification and AWWA standards compliance are nearly universal requirements; delivery windows typically demand fulfillment within 72 hours to 5 business days. Vendors routinely must carry $1 million general and pollution liability insurance, demonstrate 2–3 years' prior chemical supply experience, and accept delivery to multiple facilities simultaneously. Several recent solicitations enforce Build America Buy America Act compliance, with US-manufactured sourcing mandates for calcium hypochlorite and sodium permanganate in at least two jurisdictions.

Recent activity concentrates heavily in Florida (St. Petersburg, Cocoa, Holly Hill, Sarasota County, Jackson), Georgia (Griffin, Cartersville, Gwinnett County, Valdosta), and the Southwest (Phoenix, Tucson), with outliers in Oregon (Clean Water Services) and Connecticut (Meriden). The City of St. Petersburg's IFB-26-344 (due October 29, 2026) seeks 1,800 dry tons of calcium oxide annually at its COSME Water Treatment Plant with SBE/MBE/WBE participation requirements; the City of Cocoa's ITB B2617COC (due September 23, 2026) procures liquid sodium hypochlorite on firm per-gallon pricing with a 5% local vendor preference for Brevard County contractors; the City of Phoenix's five-year IFB-26-0104 solicits hydrochloric and citric acid with DBE participation plan mandates and transit-related federal compliance; and Clean Water Services' ITB (due September 30, 2026) requests hydrated lime delivery to three Oregon water resource recovery facilities under a twelve-month contract. Sole-source notices from the City of Holly Hill (October 19, 2026) for Chemco Systems lime slaking systems and Andritz Separation replacement parts reflect proprietary equipment lock-in, signaling limited competition in specialized controls and service segments even within this chemical supply class.