Laboratories Offering Home Testing
PFAS MCLs and Drinking Water
Statewide Testing Initiative
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September 23, 2019
The Michigan PFAS Action Response Team (MPART) will hold a public meeting from 11 a.m. to 12:30 p.m. Friday, Sept. 27, to discuss drinking water standards.
MPART members will vote on the summary and conclusions of input received on the recommended health-based values for PFAS in drinking water and review draft rules created by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) establishing Maximum Contaminant Levels (MCLs) for these contaminants.
MPART members will also vote on the creation of a Citizen Advisory Workgroup made up of members of the public impacted by PFAS contamination in their communities.
The meeting will take place in the Lee Walker conference room of Constitution Hall, 525 W. Allegan Street, Lansing. MPART also will broadcast the meeting as a webinar.
Known to scientists as per- and polyfluoroalkyl substances, PFAS are a group of emerging and potentially harmful contaminants used in thousands of applications globally including firefighting foam, food packaging, and many other consumer products. These compounds also are used by industries such as tanneries, metal platers and clothing manufacturers.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has established a new Water Quality Value (WQV) for perfluorobutane sulfonic acid (PFBS) and has revised the existing WQV for perfluorooctanoic acid (PFOA). Following the risk assessment method provided in Rule 323.1057 (“Rule 57”), a PFBS concentration of 670,000 parts per trillion (ppt; or nanograms per liter) was set for surface water to be broadly protective of human health and 8,300 ppt for surface water specifically protected as a drinking water source. The revised human health values for PFOA are 170 ppt for surface water (from 12,000 ppt previously) and 66 ppt for surface water protected as a drinking water source (from 420 ppt, previously).