Laboratories Offering Home Testing
PFAS MCLs and Drinking Water
Statewide Testing Initiative
PFAS Sites and Areas of Interest
There are two major classes of firefighting foam: Class A and Class B. Class B is also called Aqueous film forming foam (AFFF) and is usually created using PFAS. It is a highly effective foam used for fighting high-hazard flammable liquid fires, like gasoline, oil, and jet fuel.
Wastewater Treatment Plants / Industrial Pretreatment Program
Official Correspondence
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These plants receive residential, commercial, and sometimes industrial wastewater that may contain PFAS. Conventional wastewater treatment plants are not designed to treat for PFAS, therefore PFAS may pass through the treatment system to surface waters (i.e., lakes, rivers, etc.) and groundwater. EGLE is actively working with these wastewater treatment plants to address PFAS.
For more information, please see the Wastewater Workgroup page.
Kevin Wojciechowski, WojciechowskiK@Michigan.gov or 586-623-2948.
The former Genoa Township Oak Pointe Wastewater Treatment Plant (WWTP) was located at 5341 Brighton Road and was constructed in 1991 with a designed capacity of 450,00 gallons per day. The treatment plant operated until 2015. The treated wastewater was discharged to the ground under a state Groundwater Discharge Permit issued to Genoa Township. The treatment system consisted of sequencing batch reactors, sand filters, and ultraviolet disinfection system. The final treated effluent was discharged to the groundwater on-site via rapid infiltration basins.
Groundwater samples were collected by the Township consultant in June and August 2022. The highest results were 19 ppt for PFOA (compared to 8 ppt) and 20 ppt for PFOS (compared to 16 ppt).
The groundwater flow is to the south/southwest. Chilson Impoundment and Chilson Creek are downgradient, however sampling of the former WWTP monitoring well network has shown that the PFAS plume does not reach the impoundment and/or creek.
Content posted April 2023.
See an aerial view of the location of the site.
Genoa Township consultant will be collecting residential drinking water samples from seven residents on Glenway Drive in early 2023. EGLE and DHHS will review the sampling results to determine the appropriate health response and evaluate if additional residential wells need to be sampled. Most of the homes on Glenway Drive have reverse osmosis systems maintained by the Township because of the historical sodium/chloride groundwater plume from the former WWTP. The Township and EGLE are working under a Consent Order for the sodium/chloride contamination.
Genoa Township, EGLE, and DHHS will continue work together and share information and PFAS data.