PFAS sites are where one or more groundwater sample exceeds the Part 201 cleanup criteria for groundwater used as drinking water, which is 70 ppt PFOS + PFOA. New site summaries are routed through MPART so that all agencies are aware of the site and can contribute to the investigation as needed. Sites are added to the map at the right after being vetted through MPART.
Site investigations get started for a variety of reasons. At some sites, like Superfund sites, DEQ staff have been overseeing environmental cleanup efforts for many years, and may add PFAS sampling to ongoing sampling if PFAS was known or suspected to have been used at the site. DEQ staff also conduct routine monitoring of rivers and lakes, and if a sample exceeds water quality standards, staff work upstream until they find the site contributing to the PFAS. Other sites were sampled due to historical information, such as Carl’s Retreading, which was where tires burned for many days and firefighting foam containing PFAS was used. DEQ is committed to continuing to do all of these types of sampling efforts.
PFAS has been found in foam and water samples near House Street in Belmont from a Wolverine Worldwide, Inc. disposal site in Kent County.More about this site
PFAS has been found in groundwater samples near the Grayling Army Airfield in Crawford County.More about this site
PFAS has been found in fish and groundwater samples near the Former Wurtsmith Air Force Base in Iosco County.More about this site
PFAS has been found in groundwater samples near the Alpena Combat Readiness Center in Alpena County.More about this site