MI HB6320

Water suppliers must test for PFAS (perfluoroalkyl and polyfluoroalkyl substances, including PFOA and PFOS) at least annually in addition to existing contaminant testing required under state drinking water standards.

Department must notify all water suppliers within 5 miles of any location where PFAS is detected in groundwater, and those suppliers must then test their water sources for PFAS presence.

Water suppliers must issue a public advisory within 3 business days of confirming PFAS in their public water supply and mail written notification to all property owners within 14 days, including educational materials prepared by the department.

Administrative penalties for small suppliers (10,000 or fewer people) range from $200 per missed water sample to $400 for repeated failures; larger suppliers face $400-$1,000 per day per violation (max $2,000/day) for non-compliance with drinking water standards.

Suppliers can appeal administrative fines through the 1969 Administrative Procedures Act; collected fines are deposited into the state drinking water revolving fund.