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 |
|---|---|---|---|---|
|
Northern Tier Childrens Home Potter County |
45 | 3 | 1 | |
|
Scenic View Lancaster County |
45 | 3 | 1 | |
|
Shermans Valley Apts Perlo III Perry County |
45 | 5 | 0 | |
|
Arnold Apartments Wayne County |
44 | 4 | 1 | |
|
Bel Air Park Apts Blair County |
44 | 2 | 0 | |
|
Cornerstone Living Lehigh County |
44 | 7 | 0 | |
|
Lakeview Mobilehome Park Butler County |
44 | 6 | 0 | |
|
Lenape Hills Trailer Park Berks County |
44 | 1 | 0 | |
|
Mountain Crest Development Wayne County |
44 | 7 | 0 | |
|
Perry Lake Estates Butler County |
44 | 3 | 0 | |
|
Echo Beach MHP Bradford County |
43 | 5 | 1 | |
|
Frelighs Whispering Pines MHP Erie County |
42 | 6 | 0 | |
|
Perlo Ridge Apts Perry County |
42 | 5 | 0 | |
|
Perry County Generations Perry County |
41 | 4 | 0 | |
|
Springdale Gardens Carbon County |
41 | 4 | 1 | |
|
Cinco de Mayo Bucks County |
40 | 2 | 0 | |
|
Country Hills Apts Schuylkill County |
40 | 2 | 0 | |
|
Forest Hills Pch Cambria County |
40 | 8 | 0 | |
|
Lakeside MHP Lebanon County |
40 | 4 | 0 | |
|
Liberty Park Susquehanna County |
40 | 6 | 2 | |
|
Little Britain Mennonite Schoo Lancaster County |
40 | 1 | 0 | |
|
Ossies Mobile Home Community Lehigh County |
40 | 3 | 0 | |
|
Pine Garden Apartments Westmoreland County |
40 | 9 | 2 | |
|
Pleasant Village MHP Tioga County |
40 | 4 | 0 | |
|
Shady Lane Home Park Susquehanna County |
40 | 4 | 0 | |
|
T&t MHP Schuylkill County |
40 | 2 | 0 | |
|
Countryside Estates MHP Lawrence County |
39 | 4 | 0 | |
|
Rural Solution W3 LLC Crawford County |
38 | 9 | 1 | |
|
Maple Manor MHP Butler County |
37 | 1 | 0 | |
|
The Orchard at Airport Road Northampton County |
37 | 3 | 0 | |
|
The Valley MHC Warren County |
37 | 6 | 0 | |
|
Poco Apartments (upper) Monroe County |
36 | 9 | 3 | |
|
Barley Sheaf Farm Bucks County |
35 | 1 | 0 | |
|
Country Acres Personal Care Venango County |
35 | 3 | 1 | |
|
Crestview Mobile Home Park Crawford County |
35 | 3 | 0 | |
|
O Yes Apts Lebanon County |
35 | 3 | 0 | |
|
Twin Falls MHP Monroe County |
34 | 2 | 0 | |
|
Del-Aire Mobile Home Park Northampton County |
33 | 2 | 0 | |
|
Blue Sky Motel Adams County |
32 | 3 | 0 | |
|
Wynwood House at Salem Hill Centre County |
32 | 5 | 0 | |
|
Camp Coffman Clarion County |
30 | 2 | 0 | |
|
Crossroads MHP Northampton County |
30 | 2 | 0 | |
|
Kellows Mobile Home Park Northampton County |
30 | 1 | 0 | |
|
Little Acres MHP Westmoreland County |
30 | 6 | 2 | |
|
Quiet Haven Motel Lancaster County |
30 | 1 | 0 | |
|
R Own Lake INC Monroe County |
30 | 3 | 1 | |
|
Ridgeview MHP & Apts Lebanon County |
30 | 6 | 0 | |
|
Robinsons Mobile Home Park Butler County |
30 | 10 | 0 | |
|
Shellbark Camp LLC Bedford County |
30 | 3 | 0 | |
|
Sicklers MHP Wyoming County |
30 | 7 | 3 |
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.