UNSPSC 71131407: Squeeze modeling services

Modeling services to design chemical squeeze and prediction of return

UNSPSC 71131407 Squeeze modeling services (Commodity) does not align with the state and local procurement activity tagged under it. Recent opportunities solicited under this code involve water infrastructure construction, rehabilitation, and utility services—water main replacement, pipe lining, pipeline construction, bridge replacement, vactor services, and water treatment plant design—none of which constitute squeeze modeling work as the code nominally describes it. The mismatch suggests either a systematic tagging error in the state and local procurement databases or a divergence between the UNSPSC code's intended scope and its actual application in municipal purchasing systems. Issuing bodies across the opportunities include city and county government agencies, municipal utility commissions, and regional water authorities spanning Florida, Connecticut, Georgia, Texas, and Arizona.

Water distribution and wastewater infrastructure work dominates the recent solicitation record under this code. Representative opportunities include the Town of Waterford Utility Commission (Connecticut) posting IFB #26-014 for replacement of plastic water services with copper water services on Rope Ferry Road, due November 12, 2026, under a 25 percent subcontractor set-aside for state-certified small and minority-owned businesses; the City of Alpharetta (Georgia) issuing RFP 26-115 for on-call pipe lining services (CIPP and spincast trenchless rehabilitation) for stormwater drainage pipes 12 to 120 inches in diameter, due May 28, 2026; Paulding County Board of Commissioners (Georgia) requesting sealed bids for Macland Road water main replacement (1,199 linear feet of 16-inch ductile iron pipe and associated appurtenances), due September 18, 2026, limited to prequalified bidders; the City of Phoenix issuing IFB-27-0462 for a five-year requirements contract in vactor services (vacuum truck, jet rodding, hydro-blasting, submersible pump operations at water and wastewater treatment plants), due October 19, 2026, under DBE-N compliance; and the City of Fort Worth requesting bids for 24-inch PVC water line installation on Comancheria Way, due August 13, 2026, with prequalification required. The code activity reflects ongoing municipal capital investment in aging water and stormwater infrastructure, but the absence of squeeze modeling work in any of the recent solicitations signals either a data classification error or fundamental misalignment between the code designation and state and local purchasing practice.