NIGP 66544: Landfill Liners and Covers

NIGP 66544 Landfill Liners and Covers, an Item code, encompasses the procurement and installation of geosynthetic and soil-based liner systems, repair products, and cover materials that state and local governments buy to construct and maintain sanitary landfill cells and environmental barriers. Recent solicitations show counties and municipalities actively procuring full-scale liner construction projects integrating compacted clay, geosynthetic clay liners, HDPE geomembranes, geocomposite drainage systems, and protective cover soils; specialized sectional liner repair products and on-call emergency repair services for existing liner systems; geosynthetic material supplies (HDPE geomembranes, geotextiles, geocomposites, and welding rods) furnished separately for cell construction; and bulk cover material sourced from non-hazardous contaminated or polluted soils. Issuing bodies include county waste management and solid waste departments (Greenville County South Carolina, San Bernardino County California, Sacramento County California, Decatur County Georgia), municipal cities (Winter Park Florida, Savannah Georgia), and towns (Manchester Connecticut), reflecting widespread state and local solid waste infrastructure investment.

Recent opportunities span the Southeast, California, and Connecticut. Greenville County, South Carolina is procuring Unit 4 Cell 5 Liner Construction at Twin Chimneys Landfill—an RFP (RFP27008) for 8.6 acres of base liner including 24 inches of compacted clay, geosynthetic clay liner, 60-mil HDPE geomembrane, geocomposite drainage, and leachate collection piping, with Substantial Completion required within 180 calendar days and liquidated damages of $1,000 per day—response due September 4, 2026. San Bernardino County issued an IFB (2026-06-18) for Unit 2 Phase 5-2 Liner Construction at San Timoteo Sanitary Landfill in Redlands, California with a mandatory pre-bid meeting and job walk, subject to California prevailing wage requirements, bids due September 17, 2026. Sacramento County's Department of Waste Management & Recycling issued an RFP (2026PURBRFP0031) for on-call geosynthetic liner repair services at Kiefer Landfill, seeking emergency response capability within one week of notification and submission deadline May 29, 2026. Decatur County, Georgia requested sealed proposals for geosynthetic materials (60-mil HDPE geomembrane, welding rod, drainage geocomposite, and geotextiles) for MSW Cell No. 6, allowing award of individual line items or consolidated contracts, responses due July 15, 2026. Winter Park, Florida pursued single-source procurement of the NewLife Liner System sectional repair products (SS267) through Stephens Technologies, Inc., with $100,000 annual estimated spending, response due February 2, 2026. Manchester, Connecticut issued an ITB for non-hazardous contaminated soils for landfill cover material—up to 60,000 tons at $47.00 per ton—with contract term July 1, 2026 through June 30, 2027, responses due May 20, 2026.