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County to pursue Ecology remedial‑action grant to study bioaugmentation at Colbert Landfill
Summary
Solid‑waste staff told commissioners they will apply for a Department of Ecology remedial‑action grant (application due March 17) to fund field studies and data collection needed to consider bioaugmentation/bio‑stimulation as a cleanup path at the Colbert Landfill; grant request is $168,000 with an estimated 50% reimbursement (net county cost roughly $84,000).
Austin Stewart, project manager in the county’s solid‑waste/landfill closure program, asked the board to authorize pursuing a Department of Ecology remedial‑action grant to develop the lines of evidence needed to move from monitoring to active bioremediation at the Colbert Landfill.
Stewart summarized the site history: the landfill operated from 1968 to 1986, and between roughly 1975 and 1980 chlorinated solvents and volatile organic compounds were disposed there by outside parties, infiltration occurred because the cell lacked a bottom liner, and contamination migrated into underlying…
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