Tar Lake Superfund

The U.S. Army Corps of Engineers Detroit District is issuing a firm‑fixed‑price solicitation for environmental remediation services at the Tar Lake Superfund Site in Mancelona Township, Michigan. The contractor will excavate roughly 172,500 tons of contaminated soil, backfill with clean material, install new biosparge wells, construct a 160‑sq‑ft pre‑engineered structure for compressors, abandon and install groundwater monitoring wells, implement erosion controls, conduct utility surveys, perform confirmation soil sampling, and complete site restoration. The effort supports the ongoing remediation and long‑term management of a former industrial contamination zone. • Location: Mancelona Township, Michigan (Tar Lake Superfund Site) • Scope: Soil excavation, back‑filling, biosparge system expansion, structural installation, groundwater monitoring, erosion control, utility survey, sampling, and site restoration • Contract Type: Firm‑Fixed‑Price environmental services contract • Estimated volume: 172,500 tons of contaminated soil • Required capabilities: Heavy earth‑moving, environmental compliance, biosparge technology, construction of pre‑engineered structures, groundwater monitoring, and site restoration expertise.