Groundwater Rule (GWR) violations in Michigan
10 active public water systems in Michigan had a Groundwater Rule (GWR) violation in the past three years, 10 of them still unresolved. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Groveland Manor Oakland County |
435 | 2 | 0 | |
|
Buel Hill Estates (dba Eagles Landing) Sanilac County |
400 | 2 | 1 | |
|
Tallmadge Meadows Ottawa County |
268 | 5 | 1 | |
|
Country Hill Pines Sanilac County |
174 | 3 | 1 | |
|
Island Lake Apartments Livingston County |
65 | 11 | 4 | |
|
Somerset Mobile Home Park Branch County |
64 | 2 | 1 | |
|
Parkwood Saginaw County |
58 | 4 | 1 | |
|
Hermansville Housing Comm. Menominee County |
36 | 3 | 1 | |
|
Amish Parochial School Hillsdale County |
31 | 3 | 1 | |
|
Clean Water Association, Inc. Lake County |
22 | 1 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Michigan records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.