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At least 14 communities in Michigan have water contaminated with a family of chemicals known as per- and polyfluoroalkyl substances, or PFAS.
One of those sites, in West Michigan, has gotten a lot of attention recently. This month, the state abruptly1 announced a cleanup standard for PFAS.
But these chemicals have been a pollution problem in the state for years.
In Oscoda, some residents are wondering why remediation is taking so long.
The state began testing the groundwater in Oscoda back in 2010. They found two types of PFAS in private wells, and in Lake Van Etten.
The chemicals are often used to waterproof2 leather goods, clothing and furniture, and they were used in firefighting foam3 at nearby Wurtsmith Air Force Base.
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