Environmental protection: permits; groundwater discharge permit requirements; modify. Amends sec. 3122 of 1994 PA 451 (MCL 324.3122).

HB 4193 modifies Michigan's groundwater discharge permit fee structure under the Natural Resources and Environmental Protection Act. It sets annual fees based on facility type: $7,500 for large facilities (group 1), $1,800 for small campgrounds (under 1,000 sites) or municipalities with ≤1,000 residents, $300 for group 2a facilities, and $240 for group 3 facilities. The bill also requires the department to process permit applications within 180 days, imposing a 15% fee discount if they fail to meet this deadline. This bill directly affects businesses, campgrounds, and small municipalities discharging wastewater to groundwater, with fees applicable until October 1, 2027. The bill was introduced on March 11, 2025, and is pending in committee.