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.
Official Correspondence
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The Roscommon County Landfill (Landfill), located at 3401 Landfill Road, began operations in the late 1970’s and was closed in the mid-1990’s. Some portions of the Landfill are unlined and other portions are lined. The entire waste fill area is capped with either clay or PVC liners. The Landfill is located on land owned by the state of Michigan and was operated by Roscommon County. A Remedial Action Plan, approved August 1994, requires Roscommon County to conduct groundwater monitoring. On October 12, 2023, EGLE sent a letter to Roscommon County requesting that select monitoring wells be sampled for PFAS compounds. On January 2, 2024, EGLE approved a PFAS Sampling Work Plan proposed by Roscommon County. On December 11, 2024, EGLE received the results of samples collected from four monitoring wells. All four monitoring wells had exceedances of PFOA. The highest result was 33 ppt PFOA (compared to 8 ppt). The Roscommon County Landfill is located at the peak elevation of a glacial moraine with soils consisting of sand and gravel. The depth to groundwater varies from 50 to 150 feet and is in a northwest direction towards Nine Mile Swamp.
Content posted March 2025.
See an aerial view of the location of the site.
There is no municipal drinking water system in the area. The area directly downgradient of the Landfill in groundwater flow direction is also on State Land. EGLE, DHHS, and local health department staff evaluated drinking water wells and found no wells downgradient of the Landfill.
EGLE requested Roscommon County to conduct PFAS sampling as part of the annual groundwater monitoring well sampling.