Tapcensus

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.

Health effects: Protects against enteric viruses, which can contaminate groundwater via cracked well casings, failing septic systems, or animal waste. Viruses persist longer in groundwater than in surface water. Hepatitis A and norovirus are the primary pathogens of concern.

Systems with a Groundwater Rule (GWR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Freemansburg MHC
Northampton County
90 4 0
Heidelberg Acres MHP
Lehigh County
90 3 0
Irish Creek MHP
Berks County
90 6 0
Miller Manor Homeowners Assoc
Northampton County
90 1 0
Mount Trexler Manor
Lehigh County
90 2 0
Paradise Sch
York County
90 3 0
Sun Dial Village MHP
Westmoreland County
90 5 1
Terrace Hill MHP
Susquehanna County
90 2 0
Wellington Mobile Estates
Carbon County
90 1 0
West Springfield Mobile HM PK
Erie County
90 4 0
Whites Mobile Home Park
Susquehanna County
90 3 1
Corry Two MHC
Erie County
88 3 0
Sunnyview Mobile Home Park
Mercer County
88 4 1
Beth Country Squire Estates
Northampton County
87 2 0
Pithole Water Association
McKean County
87 7 2
Woodbrooke Water Authority
Chester County
87 2 1
Hillside View MHP
Tioga County
85 1 0
Mehoopany Twp Municipal Auth
Wyoming County
85 6 2
Royal Oaks MHP
Northampton County
85 4 0
Deer Chase MHP
Perry County
84 5 0
Freemans MHP
Wyoming County
83 4 0
Locustwood Mobilehome Park
Lancaster County
81 3 0
Blue Heron Village
Berks County
80 6 1
Econolodge
Cumberland County
80 2 0
Edgewood at Countryside Apts
Monroe County
80 4 1
Franklin Mobile Home Village
Butler County
80 9 1
Halls Dairy Bar
Perry County
80 4 1
Kerryview MHP
Bradford County
80 5 1
Keystone Fire CO
Berks County
80 1 0
Magnolia Personal Care Center
Juniata County
80 3 0
Moscow Dev Assoc
Lackawanna County
80 4 0
Mountain View Estates
Columbia County
80 2 0
Pinedale Mobile Home Park
Crawford County
80 4 0
Retreat Village
Schuylkill County
80 2 1
Riveredge Rentals
Chester County
80 4 1
Urban Acres MHP
Berks County
80 1 0
Town & Country Water Assoc
Luzerne County
79 4 0
E J Gulick MHP
Butler County
78 1 0
Gracious Living Estates Pch
Susquehanna County
77 4 1
Coylesville Court
Butler County
76 3 0
A B C #2 Mobile Home Park
Lycoming County
75 6 3
Bpoe Lodge 219
Crawford County
75 1 0
Camp Hebron Cws
Dauphin County
75 3 0
Country Club Park
Centre County
75 2 0
Double DS
Crawford County
75 2 0
Eastbrook Apartments
Lawrence County
75 1 0
Eastville Water Association
Clinton County
75 3 1
Hyland MHP
Luzerne County
75 5 2
Magnolia MHP
Lawrence County
75 4 0
Maple Park Garden Apartments
Pike County
75 1 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.