The second quarter for PFAS MCL compliance monitoring ran from April 1 - June 30, 2021, and included two groups of supplies:
Those supplies whose initial round monitoring returned a PFAS detection(s) for one of the analytes with an MCLs, placing them onto a quarterly monitoring schedule.
A number of those supplies which have demonstrated through sampling PFAS levels consistently and reliably below the PFAS MCLs, who are on an annual monitoring schedule. (Who opted to collect their annual sample during Quarter 1)
Visit Michigan.gov/PFASresponse for more information.