By Steve Verburg, Wisconsin State Journal
Wisconsin’s Department of Health Services on Friday recommended one of the nation’s most restrictive groundwater standards to protect public health from industrial pollutants that have been found in drinking water in Madison and elsewhere in the state.
The recommended groundwater enforcement standard of 20 parts per trillion is far below a much criticized federal advisory for two compounds that are part of a class of hazardous highly fluorinated chemicals known by the acronym PFAS.
Wisconsin law required the health department to recommend that the state standard match federal advisory of 70 parts per trillion that was set in 2016 unless new research contradicted it. DHS toxicologist Sarah Yang said November 2018 findings by the federal Agency for Toxic Substances and Disease Registry showed a stricter level was needed to protect public health.
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