UNSPSC 71141006: Well freeze operations

Technique used to isolate wellheads, valves and circulating equipment from subsurface or upstream pressure by forming an ice plug

UNSPSC 71141006 Well freeze operations is a Commodity code that in practice captures landfill gas collection system construction and installation work—surveying well locations, installing extraction wells with casing and piping infrastructure, installing condensate management and monitoring equipment, and performing associated site restoration. State and local governments solicit this work through solid waste authorities and regional water reclamation districts seeking to extract and control gas from landfills and anaerobic digesters. The Dalton-Whitfield Solid Waste Authority in Georgia, for example, issued an Invitation to Bid in April 2026 for landfill gas extraction system expansion at its Old Dixie Highway Municipal Solid Waste Landfill, including approximately 4,100 linear feet of perforated horizontal collectors, 7,420 linear feet of lateral piping in multiple diameters, 25 liquefied fossil gas wellheads, and condensate sumps with monitoring controls. Qualifying contractors must be Georgia-licensed General Contractors with minimum five years' experience in landfill gas collection and control system construction and installation, having successfully completed at least five similar or larger projects within the past five years, and must perform a minimum of 50 percent of labor on-site.

Recent activity concentrates in Georgia and California. The Dalton-Whitfield Solid Waste Authority issued its ITB with a May 21, 2026 bid deadline and mandatory pre-proposal conference on May 1, 2026 at the administrative office in Dalton; substantial completion is required within 120 calendar days of Notice to Proceed, with liquidated damages of $2,000 per day for the first 90 days and $5,000 per day thereafter. The Eastern Municipal Water District in Riverside County, California issued a Request for Proposal in February 2026 for a Design-Build-Finance-Own-Operate-Maintain agreement to convert digester gas from three Regional Water Reclamation Facilities into renewable natural gas or other marketable energy products, with proposal deadline April 13, 2026 at 4:00 PM Pacific Time, mandatory pre-proposal meeting March 9, 2026, and mandatory site tours March 18–19, 2026. The Georgia and California solicitations together represent the primary recent activity under this code; the source contains no other well freeze or gas extraction opportunities at state or local level.