Groundwater Rule (GWR) violations in Pennsylvania
968 active public water systems in Pennsylvania had a Groundwater Rule (GWR) violation in the past three years, 256 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Jefferson Estates MHP Mercer County |
57 | 5 | 0 | |
|
KA Middlebury Mobile Home Park Tioga County |
57 | 5 | 1 | |
|
Hyland Mobile Home Park Lawrence County |
56 | 4 | 0 | |
|
Pediatric Specialty Care Bucks County |
56 | 6 | 0 | |
|
Sugarcreek MHP Crawford County |
56 | 2 | 0 | |
|
Belle Aire Acres Lackawanna County |
55 | 1 | 0 | |
|
Lupfers Grove MHP & Cpgrd Perry County |
55 | 3 | 0 | |
|
Majors Mobilehome Park Lawrence County |
55 | 2 | 0 | |
|
Ridgeview MHP Chester County |
55 | 3 | 0 | |
|
Neighbors of Penn Lake Crawford County |
54 | 3 | 0 | |
|
Deerhaven White Beauty View ES Pike County |
53 | 5 | 0 | |
|
Pathways Delaware County |
53 | 2 | 1 | |
|
Lazy Brook Management Susquehanna County |
51 | 3 | 1 | |
|
Nolts Red Maple MHP Lancaster County |
51 | 8 | 0 | |
|
Acorn Acres Lancaster County |
50 | 2 | 0 | |
|
Berks Hill Estates Berks County |
50 | 3 | 0 | |
|
Blackwood GC Berks County |
50 | 1 | 0 | |
|
Bow Creek Inn Dauphin County |
50 | 2 | 1 | |
|
Colonial Glenn Estates Beaver County |
50 | 8 | 0 | |
|
Coppolas Pizza Monroe County |
50 | 2 | 0 | |
|
Country Corner RV Park Mercer County |
50 | 6 | 0 | |
|
Creekside Cafe Lancaster County |
50 | 2 | 1 | |
|
Follys End Entertainment LLC Erie County |
50 | 1 | 0 | |
|
Fox Meadow Creamery Lancaster County |
50 | 1 | 0 | |
|
Happy Trails Campground Huntingdon County |
50 | 4 | 0 | |
|
Keswick Pointe Monroe County |
50 | 5 | 0 | |
|
McKee Tavern Blair County |
50 | 2 | 0 | |
|
Mountain Supply Perry County |
50 | 2 | 1 | |
|
Newman Smith Post 514 Homecorp Pike County |
50 | 3 | 1 | |
|
Newtown Hill Trailer Park Tioga County |
50 | 5 | 1 | |
|
Oak Manor Estates Pike County |
50 | 2 | 1 | |
|
Pine Terrace Mobile Home Park Schuylkill County |
50 | 2 | 0 | |
|
Pleasant Hall Manor Franklin County |
50 | 6 | 1 | |
|
Scenic Mobile Home Park Mercer County |
50 | 6 | 0 | |
|
Sciota Gardens Monroe County |
50 | 2 | 0 | |
|
Sky View Terrace Beaver County |
50 | 7 | 0 | |
|
Smithfield Court Monroe County |
50 | 2 | 0 | |
|
Stonersville Hotel Berks County |
50 | 2 | 0 | |
|
The Acorns LLC Berks County |
50 | 3 | 2 | |
|
Timber Haus Campground Jefferson County |
50 | 3 | 0 | |
|
White Rock Mobile Home Park Monroe County |
50 | 9 | 2 | |
|
Woodward Cave and Campground Centre County |
50 | 2 | 0 | |
|
Emery Cove Estates Wayne County |
48 | 4 | 0 | |
|
Estates at Stone Row Monroe County |
48 | 11 | 3 | |
|
Poco Apartments (lower) Monroe County |
48 | 9 | 2 | |
|
Pinehurst Manor Lancaster County |
47 | 2 | 0 | |
|
Zeigler MHP York County |
46 | 2 | 0 | |
|
Grampas Woods Estates Pike County |
45 | 5 | 0 | |
|
Hemlock Village MHP Mercer County |
45 | 2 | 0 | |
|
Nittany Grove Condo Comm Assn Centre County |
45 | 4 | 0 |
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 Pennsylvania 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.