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 |
|---|---|---|---|---|
|
Roots Mkt Lancaster County |
200 | 1 | 0 | |
|
Saegertown MHP Crawford County |
200 | 2 | 0 | |
|
Town and Country Estates Bradford County |
200 | 2 | 0 | |
|
Triple J MHP Lancaster County |
200 | 2 | 0 | |
|
Wilderness MHP Warren County |
200 | 2 | 0 | |
|
Brinton Manor Delaware County |
196 | 8 | 0 | |
|
Arbour Court Chester County |
180 | 3 | 0 | |
|
Glades Pike Estates MHP LLC Somerset County |
180 | 2 | 0 | |
|
Martins Community LP MHP Chester County |
180 | 4 | 0 | |
|
Rolling Valley Estates Butler County |
180 | 4 | 0 | |
|
Laurel Lane Development Assoc Pike County |
179 | 5 | 1 | |
|
Locust Grove Retirement Home Juniata County |
177 | 3 | 1 | |
|
Country Village MHP Luzerne County |
175 | 5 | 2 | |
|
Creative Kids East Child Dev Lehigh County |
175 | 2 | 0 | |
|
Log Cabin Court Lancaster County |
175 | 1 | 0 | |
|
Rbe Water Association INC Lackawanna County |
175 | 4 | 2 | |
|
Trotter Farms Centre County |
175 | 4 | 0 | |
|
Mushroom Farm Monroe County |
172 | 2 | 0 | |
|
Springville Mennonite School Lancaster County |
167 | 1 | 0 | |
|
Yerkes Water Association Montgomery County |
165 | 2 | 0 | |
|
Aqua PA Wayne County Prison Wayne County |
160 | 1 | 0 | |
|
RT 75 Pit Stop Franklin County |
160 | 2 | 0 | |
|
Southampton Manor MHP Cumberland County |
160 | 3 | 0 | |
|
Chestnut Ridge MHP Carbon County |
152 | 2 | 0 | |
|
Imperial Mobile Home Park Chester County |
151 | 2 | 1 | |
|
Benton Hills MHP Lackawanna County |
150 | 3 | 0 | |
|
Best Western Dauphin County |
150 | 1 | 0 | |
|
Brookline Retirement Village Juniata County |
150 | 3 | 1 | |
|
Chicora Medical Center Butler County |
150 | 4 | 0 | |
|
Conestoga Hills Community Lancaster County |
150 | 2 | 1 | |
|
Country Crest MHP Luzerne County |
150 | 7 | 1 | |
|
D Water Company Carbon County |
150 | 4 | 1 | |
|
Eastern Cumberland Water Sys Adams County |
150 | 1 | 0 | |
|
Finch Hill Water CO Lackawanna County |
150 | 3 | 2 | |
|
Frozen Pond Arena Butler County |
150 | 2 | 0 | |
|
Gilbert Mobile Home Park Monroe County |
150 | 1 | 0 | |
|
Hillendale-On-The-Delaware Northampton County |
150 | 2 | 0 | |
|
Hopewell Furnace Nhs Berks County |
150 | 2 | 0 | |
|
Joe Jurgielewicz & Son Ltd Berks County |
150 | 2 | 0 | |
|
Kenbrook Bible Camp INC Lebanon County |
150 | 1 | 0 | |
|
Knob Vue Estates Beaver County |
150 | 5 | 0 | |
|
Lakeview Manor MHP Crawford County |
150 | 6 | 1 | |
|
Palmer Shore Water Erie County |
150 | 1 | 0 | |
|
Pepes Pizza Lancaster County |
150 | 2 | 0 | |
|
Red Lion Jehovahs Witnesses York County |
150 | 2 | 1 | |
|
Rolling Hills MHP Lancaster County |
150 | 1 | 0 | |
|
Royal Oaks Golf Club Lebanon County |
150 | 2 | 1 | |
|
Scenic View Apartments Bucks County |
150 | 1 | 0 | |
|
Stoneworth Apts Wtp Butler County |
150 | 2 | 0 | |
|
Vali-View Mobile Home Park Lycoming County |
150 | 11 | 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 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.