Soil Excavation at MDT Swan Lake Facility

The Montana Department of Transportation (MDT) is seeking a qualified contractor to perform soil excavation, one‑time landfarm disposal, and associated groundwater monitoring at the former MDT Swan Lake Facility. The work includes removing contaminated soils, transporting them to an approved landfarm, reinstalling a monitoring well, conducting post‑excavation groundwater sampling, and delivering a comprehensive cleanup report. Bidders must be registered with the State’s Labor & Industry division, provide bid security if the total bid is $150,000 or more, and certify nondiscrimination under state statutes. • Excavation of approximately 750 LCY of contaminated soil and 250 LCY of clean overburden (volumes subject to field verification). • Transport and placement of contaminated soil at the MDT Ferndale one‑time landfarm, followed by back‑filling, compaction, and addition of oxygen‑releasing compound. • Re‑installation of monitoring well MW‑8, groundwater sampling within 30 days of excavation, and analytical reporting to DEQ‑approved labs. • Submission of a Draft Cleanup Report (Jan 2027) and Final Report (Nov 2027), with required data‑validation documentation.