Environmental protection: permits; groundwater discharge permit requirements; modify. Amends sec. 3122 of 1994 PA 451 (MCL 324.3122).
Key claim: HB4192 would modify groundwater discharge permit requirements under section 3122 of Michigan’s Natural Resources and Environmental Protection Act (1994 PA 451).
Abstract
(HB4192 · 103rd Legislature) Environmental protection: permits; groundwater discharge permit requirements; modify. Amends sec. 3122 of 1994 PA 451 (MCL 324.3122). Sponsor: Rep. Greg VanWoerkom ® + 8 co-sponsors Latest vote: Reported Favorably With Substitute S-3 5/21/2026 — 7-0 (passed, 2026-05-27) Latest action (2026-05-27): Referred To Committee Of The Whole With Substitute (s-3)
Why this matters
Section 3122 of NREPA governs when facilities must obtain a permit before discharging waste or wastewater to groundwater, which directly affects industrial operators, municipal utilities, and agricultural operations across Michigan. Changes here can shift compliance costs, monitoring obligations, and the state’s ability to prevent groundwater contamination that feeds drinking water wells and Great Lakes tributaries. Tracking the specific amendments will show whether the bill tightens or relaxes the current permitting regime.