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
Laboratories Offering Home Testing
PFAS MCLs and Drinking Water
Statewide Testing Initiative
Official Correspondence
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Christiaan Bon, BonC@Michigan.gov or 989-370-9624
Alta Equipment, located at 3725 Old Highway 27 South, is a commercial property that has been used for light equipment maintenance since 1998 by various companies. In February 2023, a Baseline Environmental Assessment (BEA), was submitted by the current owner where one groundwater sample from a shallow temporary well located in the property’s septic drain field, had concentrations of PFBS above criteria. The highest detection of PFBS was 485 ppt (compared to 420 ppt) and concentrations decrease to 141 ppt at the western, downgradient side of the property. The onsite private drinking water well was non-detect for PFAS. Groundwater was found at 23-28 feet below ground surface. Shallow groundwater (less than 50’) is expected to flow to the west towards Otsego Lake. Otsego Lake is located approximately 550 west of the site. Deeper groundwater (greater than 100’) is expected to flow regionally to the southeast.
Content posted August 2024
See an aerial view of the location of the site.
The surrounding area is serviced by private drinking water wells. There is currently no municipal water available in the area. Many of the downgradient private drinking water wells are less than 50 feet deep with a few private drinking water wells deeper than 100 feet. Directly north of the site, is a church with a drinking water well depth of 170 feet. In the BEA, the private drinking water well on site was sampled for select PFAS. Six (6) PFAS analytes were sampled in the private drinking water and did not exceed laboratory reporting limits.
EGLE, MDHHS, and local health identified 10 properties that are directly downgradient for drinking water sampling. Many of the wells have unknown well depths or are shallow wells. Shallow drinking water wells to the west will be sampled out of an abundance of caution.