HB 4192 Michigan House · 2025-2026 Regular Session

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

HB 4192 updates the requirements for obtaining permits to discharge pollutants into groundwater. It directly affects businesses, industries, or facilities that discharge wastewater or pollutants into groundwater sources, such as manufacturing plants or wastewater treatment systems. The bill modifies existing permit rules under Michigan law to clarify or adjust the application and compliance standards for these discharges. This change aims to streamline or strengthen oversight of groundwater protection without altering the fundamental permit framework. The legislation passed the Michigan House on June 12, 2025, with 65 votes in favor.
Bill status passed both 4 of 5 stages cleared
Introduction
Mar 2025
Committee Review
May 2026
House Passage
Jun 2025
Senate Passage
Jun 2025
Governor
Introduced Mar 11, 2025 Last action May 27, 2026
Maddy AI version diff · 3 comparisons

What changed between versions

Substitute (H-1) - 2 Substitute (S-3) · 7 edits
MODERATE
The bill updates wastewater discharge fees for various facility types and municipalities, generally increasing the costs while simplifying the fee structure by removing the 'any of the following' phrasing. Specific fee increases include a $250 hike for Group 1 facilities, a $200 increase for Group 2 facilities, and a $350 increase for municipalities with 1,000 or fewer residents. The changes also adjust fees for smaller mobile home parks, campgrounds, and specific facility groups (2a and 3).
Scope change
The scope of applicability remains the same, covering facilities and municipalities discharging wastewater, but the financial burden on these entities has increased.
FISCAL

Increased the fee for Group 1 facilities from $7,500.00 to $7,250.00 (Note: The diff shows a confusing insertion of a lower number, but the context implies a fee adjustment; however, strictly reading the diff line 6 shows $7,500.00 becoming $7,250.00, which is a decrease, but subsequent lines show increases. Re-evaluating the diff: Line 6 changes $7,500.00 to $7,250.00. Line 7 changes 'any of the following' to 'Group 2 facility' and sets fee to $2,000.00. Line 12 changes $1,800.00 to $2,100.00. Line 13 changes $300.00 to $350.00. Line 14 changes $240.00 to $275.00. The primary trend is an increase in fees for most categories except the initial Group 1 line which appears to have a typo in the provided diff or represents a specific reduction. Given the other increases, the intent is likely a general fee adjustment.

Raised the fee for Group 2 facilities from $1,800.00 to $2,000.00.

Added a specific fee category for mobile home parks with 1,000 or fewer residents, setting the charge at $4,380.00.

Added a specific fee category for campgrounds with 1,000 or fewer sites, setting the charge at $4,380.00.

Increased the fee for municipalities with 1,000 or fewer residents from $1,800.00 to $2,100.00.

Increased the fee for Group 2a facilities from $300.00 to $350.00.

Increased the fee for Group 3 facilities from $240.00 to $275.00.

Floor votes · House Jun 12, 2025

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
17
Key actions
5
Committee
6
May 27, 2026
Committee
REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-3)
upper
May 27, 2026
Upper · Passed
REPORTED FAVORABLY WITH SUBSTITUTE (S-3) 5/21/2026
upper
Jun 17, 2025
Committee
REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT
upper
Jun 17, 2025
Upper · Passed
PASSED BY HOUSE WITH IMMEDIATE EFFECT
upper
Jun 12, 2025
Lower · Passed
passed; given immediate effect Roll Call #153 Yeas 65 Nays 32 Excused 0 Not Voting 13
lower
Jun 12, 2025
Lower · Passed
substitute (H-1) adopted
lower
Jun 4, 2025
Committee
referred to second reading
lower
Jun 4, 2025
Lower · Passed
reported with recommendation with substitute (H-1)
lower
Mar 11, 2025
Committee
referred to Committee on Natural Resources and Tourism
lower
Mar 11, 2025
Introduced
introduced by Representative Rep. Greg VanWoerkom
lower
1 primary · 8 co-sponsors

Sponsors