3M Wausau Greystone’s PFAS Site Investigation Work Plan Submitted to DNR
- 3M Company, PFAS
- June 15, 2025
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 the document, the objective of the activities in the plan is “to further characterize the horizontal and vertical extent of PFAS groundwater impacts to better understand potential on-Site sources and identify potential off-Site sources and inform future selection of remedial action, if any, per NR 716.09(2)(f)(8).”
The scope of work outlined in 3M’s work plan includes
• Clearing utilities prior to conducting field activities.
• Installing shallow and deep groundwater monitoring wells.
• Collecting soil samples for laboratory analysis.
• Collecting groundwater and surface basin samples for laboratory analysis.
• Collecting quality control samples.
• Handling investigation derived waste (IDW).
The 3M Company Wausau Greystone Quarry is currently an open Environmental Repair Program (ERP) site related to Per- and Polyfluoroalkyl Substances (PFAS) contamination. Associated public records and information for this ERP site can be found on the DNR’s website.
20250612_135_SIWP
