“The state has identified 23 sites of interest for PFAS including in fish and surface water samples near the Clinton River and Lake St. Clair in St. Clair and Macomb counties.
One of the issues with PFAS, said James Clift, policy director for the Michigan Environmental Council, is not much is known about what levels are safe for people and wildlife…
According to the news release from the Environmental Working Group,from 2013 to 2015, the EPA mandated national testing for PFAS in public water systems, yet the full results of this testing were not made public. Water utilities with the highest concentrations of PFAS have been publicly identified, according to EWG, but the names of utilities with detectable PFAS contamination below the reporting levels of 10 to 90 ppt were not released.
Michigan Democrats introduced a bill in the state House that would lower the Michigan standard to 5 parts per trillion. That bill has not been put to a vote…
According to information from the state, PFOS and PFOA were found in surface water collected in late August 2017 from the Clinton River near Mount Clemens and Lake St. Clair near Selfridge Air National Guard Base.
During follow-up testing, samples were collected from fish and surface water. The maximum value collected was 610 ppt.
Data collected from water outfalls at Selfridge showed concentrations of 2,400 ppt for PFOS and 290 ppt for PFOA.
Testing found the highest level for PFAS in public drinking water supplies in Lake St. Clair was 3.28.
In response to the testing, the state Department of Health and Human Services in April issued a fish consumption advisory for bluegill and sunfish in Lake St. Clair of four servings of any size per month.
In January, the state adopted a drinking water criteria of 70 ppt for combined PFOS and PFOA. Several area water suppliers have been tested. Most of the results were below the smallest result that can reliably be detected by lab equipment, so the amount was estimated; however, testing found total PFAS of 7.224 ppt and 4.081 ppt in samples of treated water in St. Clair.”
Read the full article by Bob Gross