According to information posted on the Wisconsin DNR’s BRRTS website, the PFAS Site Investigation Work Plan for 3M’s Greystone facility in the Wausau area has been submitted to state regulators. The work plan is dated June 9, 2025. The plan can be downloaded from the DNR’s website via this link, or is embedded below for review. As stated in …
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In recent weeks, the Wisconsin DNR posted the latest PFAS groundwater results for 1300 Cleveland Avenue on its website. The site, which is zoned residential and sits in the middle of a densely populated residential area, is an open Environmental Repair Program (ERP) site. ERP sites are sites that have contaminated soil and/or groundwater that are addressed under Wisconsin …
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According to public records available on the Wisconsin DNR’s website, 3M Company received a Responsible Party Letter from state regulators related to Per- and Polyfluoroalkyl Substances (PFAS) identified at its Wausau Greystone Quarry. The Responsible Party letter is dated March 10, 2025, and it can be accessed directly on the government’s website. The DNR website page for this new …
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While the City of Wausau already sued 3M Company and other manufacturers for PFAS contamination in its municipal water supply, now a federal regulatory agency has submitted a formal information request to 3M regarding PFAS contamination identified in Wausau City Wells as far back as 2019. High PFAS water levels had been discovered at the 3M Greystone plant last …
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Data available on the Wisconsin DNR’s Drinking Water System Portal shows that high levels of PFAS were recently identified in the test results associated with the 3M Company Greystone Plant in the Wausau area. For the 3M Company Greystone Plant, results show that for PFOA and PFOS that the results were 210 NG/L and 310 NG/L respectively, for a …
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Due to PFAS detected in the 1300 Cleveland Avenue’s soil and groundwater, a September 25, 2023 email from Mr. Matt Thompson of the Wisconsin DNR to the City of Wausau’s environmental consultant for the property indicates that a PFAS groundwater investigation for the site will now be necessary. Inclusion of off-site monitoring wells is likely. According to public records recently …
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The combined concentrations of PFOA and PFOS at two well locations at 1300 Cleveland Avenue were above the Department of Health Services (DHS) recommended groundwater Enforcement Standard (ES) of 20 ng/L. Another round of groundwater testing will be helpful in determining next steps, according to the Department of Natural Resources (DNR). Per a Status Report dated February 9, 2023 …
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Detection of PFAS in the Site’s Soils Apparently Prompts Request for PFAS Groundwater Sampling According to an August 2, 2022 email from Matt Thompson, a DNR Hydrogeologist Program Coordinator, to Eric Lindman, the City of Wausau’s Public Works Director, the DNR advised that a plan be developed to sample for PFAS in groundwater at 1300 Cleveland Avenue due to the …
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In a letter dated May 27, 2022 concerning PFAS concentrations within the Wausau municipal drinking water system that was sent to Wausau District 3 Alderperson Tom Kilian, the Department of Health Services (DHS) provided its public health conclusions and recommendations regarding the local water samples taken in June 2019 and January 2022. The letter states that “drinking unfiltered Wausau …
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ALL WELLS IMPACTED BY PFAS FOR AT LEAST MORE THAN TWO YEARS According to the City of Wausau, the levels of PFAS range from 23 parts per trillion to 48 parts per trillion depending on the well. Sampling results indicate that, for over two years, Wausau’s drinking water wells have exhibited PFAS levels that exceed the proposed standards from Wisconsin …
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