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DNR opens contamination case after Thomas Street tests find lead, dioxins and groundwater chemicals
Summary
The Wisconsin DNR opened an environmental contamination case for Area A of Wausau's Thomas Street corridor after Phase 2 testing found lead and dioxins/furans in shallow fill soils and volatile organic compounds in deeper saturated soils; the city must hire a consultant by March 13 and submit a site-investigation work plan by April 12.
The Wisconsin Department of Natural Resources told the City of Wausau's Economic Development Committee on March 3 that Phase 2 testing of the Thomas Street corridor found contamination in one portion of the project area and that the agency has opened an environmental contamination case.
Jane Gray, a hydrogeologist and program coordinator with the DNR's Remediation and Redevelopment Program for the West Central Region, said soil samples from Area A (borings SB3 and SB4) showed shallow-fill exceedances for lead and dioxins and furans in the 2'4 foot interval. Deeper, saturated samples in the same borings also contained volatile organic compounds, including naphthalene, trimethylbenzene and xylenes, as well as pentachlorophenol (PCP). Groundwater samples reflected similar compounds, the DNR presentation said.
Why it matters: The DNR said the shallow lead and dioxin/furan exceedances and evidence of deeper…
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