All water systems in Pennsylvania
31 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Southeastern Chester CO Auth Chester County |
1,500 | 0 | 0 | |
|
Chester Water Authority Kennett Twp · Chester County |
776 | 0 | 0 | |
|
Chester County Prison Farm Pocopson · Chester County |
700 | 0 | 0 | |
|
Chester Davis Auction Cambria County |
600 | 0 | 0 | |
|
North Hill CO C/o W Chester MU Chester County |
460 | 0 | 0 | |
|
Chester Water Authority Chester County |
399 | 0 | 0 | |
|
Chesterfield Manor House Northampton County |
300 | 0 | 0 | |
|
W Chester Gar Water CO Chester County |
280 | 0 | 0 | |
|
West Chester Gardens Chester County |
250 | 0 | 0 | |
|
Lanchester Centre Lancaster County |
225 | 0 | 0 | |
|
Rochester Inn Allegheny County |
200 | 0 | 0 | |
|
Lanchester Christian Schools Chester County |
150 | 0 | 0 | |
|
Chester W. A. Landenberg New Garden · Chester County |
145 | 0 | 0 | |
|
Chichester Wesleyan Church Delaware County |
110 | 0 | 0 | |
|
Chester County Sports Arena Chester County |
100 | 0 | 0 | |
|
Chester Heights Market Delaware County |
100 | 0 | 0 | |
|
5014 West Chester Pike Delaware County |
90 | 0 | 0 | |
|
Chester Valley Grange Chester County |
75 | 0 | 0 | |
|
Manchester Heights Water Erie County |
65 | 0 | 0 | |
|
Chester Heights Camp Delaware County |
60 | 0 | 0 | |
|
Chester F and Helen Mica Luzerne County |
50 | 0 | 0 | |
|
Delchester Center Delaware County |
50 | 0 | 0 | |
|
West Chester Sda Church Chester County |
50 | 0 | 0 | |
|
Southern Chester CO Medical CE Chester County |
40 | 0 | 0 | |
|
Southern Chester CO Medical CE Chester County |
40 | 0 | 0 | |
|
Upper Chichester Twp Mun Bldg Delaware County |
35 | 0 | 0 | |
|
Chester County Beverage Chester County |
31 | 0 | 0 | |
|
Penn Hills Estate of Rochester Beaver County |
27 | 4 | 4 | |
|
Chester County Food Bank Chester County |
25 | 0 | 0 | |
|
Manchesters Restaurant Mercer County |
25 | 0 | 0 | |
|
Rochester Twp Beaver County |
25 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.