Description: Greenville County seeks qualified engineering firms to provide Construction Quality Assurance field services for the Twin Chimneys Landfill Unit 4 Cell 5 project. The work includes onsite inspections, construction-activity documentation, monitoring of deviations and corrective actions, and preparation of a final CQA report for submission to the South Carolina Department of Environmental Services within 30 days after substantial completion. The Request for Proposal opened on July 31, 2026, has a non-mandatory pre-proposal meeting on August 5, 2026, and closes on August 21, 2026 at 3:00 PM Eastern Time.
County · SC, US
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CountySC
Jul 24, 2026
Closes
Aug 27, 2026
Construction (1x10-5 cm/sec clay, gcl, 60-mil hdpe, geocomposite, protective cover, leachate collection pipes). Contractor will be responsible for construction quality control (cqc) and surveying.
CountySC
Jul 24, 2026
Closes
Sep 1, 2026
Work includes 28,000 CY compacted soil liner; 8.6 AC geosynthetic clay liner (gcl); 8.6 AC 60 mil HDPE geomembrane liner; 8.6 AC geocomposite drainage layer; HDPE leachate collection piping; 5 EA cleanouts; 215 LF 22" perforated HDPE pipe; 600 LF 20" perforated HDPE pipe; 235 LF 18" perforated HDPE pipe; 125 LF 16" perforated HDPE pipe; 625 LF 10" perforated HDPE pipe; 735 LF 8" perforated HDPE HDPE. See attached file.
CountyCA
Jul 27, 2026
Closes
Aug 24, 2026
The County of Sacramento, Department of Waste Management & Recycling is soliciting proposals from qualified construction quality assurance firms for on-call construction monitoring, field and laboratory testing, and reporting at the Kiefer Landfill facility. The services will support emergency repairs and verification that liner-system and final-cover materials meet regulatory requirements. Proposals are due August 24, 2026, at 3:00 p.m. Pacific Time, and the non-mandatory pre-proposal meeting is scheduled for August 5, 2026.
CountyCA
Jul 27, 2026
Closes
Aug 24, 2026
The County of Sacramento, Department of Waste Management & Recycling is soliciting proposals from qualified construction quality assurance firms for on-call construction monitoring, field and laboratory testing, and reporting at the Kiefer Landfill facility. The services will support emergency repairs and verification that liner-system and final-cover materials meet regulatory requirements. Proposals are due August 24, 2026, at 3:00 p.m. Pacific Time, and the non-mandatory pre-proposal meeting is scheduled for August 5, 2026.
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