UNSPSC 71141007: Relief well design and implementation

Hazard assessment; drilling, engineering and planning; directional drilling and intercept; and well kill / plug and abandonment

UNSPSC 71141007 Relief well design and implementation (Commodity) encompasses landfill gas extraction well systems, related piping infrastructure, and associated construction services for municipal solid waste facilities. State and local governments buy under this code primarily through solid waste management authorities and municipal departments responsible for landfill operations and gas control systems. The work includes surveying gas extraction well locations, installing extraction wells with casing and perforated horizontal collectors, installing conveyance lines for liquefied gas and condensate removal, wellhead equipment, and erosion control measures. Qualifying contractors typically hold state-level general contractor licensing and must demonstrate multi-year experience in landfill gas system construction, with labor-performance requirements and mandatory pre-bid or pre-proposal conferences standard across solicitations.

Recent activity centers in Georgia, where the Dalton-Whitfield Solid Waste Authority issued an Invitation to Bid (ITB, PE75552NONST2026000000061) on April 17, 2026, for a landfill gas collection and control system expansion at its Old Dixie Highway Municipal Solid Waste Landfill, with bid opening on May 21, 2026. The project scope includes approximately 4,100 linear feet of 6-inch perforated horizontal collectors, 7,420 linear feet of lateral piping in three diameters, 25 liquefied fossil gas wellheads, condensate sumps with pneumatic pumps, and 46,100 square yards of side slope seeding and erosion control matting. Contractors must be Georgia-licensed and registered general contractors with a minimum of five years' experience in landfill gas system construction and five similar or larger projects completed within the past five years, with a mandatory pre-proposal conference scheduled for May 1, 2026, at Dalton. Substantial completion is due 120 calendar days after Notice to Proceed, with liquidated damages of $2,000 per day for the first 90 days following substantial completion and $5,000 per day thereafter. The contract requires compliance with the Georgia Security and Immigration Compliance Act, E-Verify requirements, and bid bonds of five percent of the maximum bid price.