All water systems in Pennsylvania
7 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Columbia Mall Columbia County |
2,200 | 0 | 0 | |
|
Columbia Montour Area VO Tech Columbia County |
741 | 0 | 0 | |
|
Columbia Drive in Lancaster County |
200 | 0 | 0 | |
|
Columbia Gas of PA INC Lawrence County |
56 | 0 | 0 | |
|
Columbia House Berks County |
40 | 0 | 0 | |
|
Columbia Gas Tranmission INC Greene County |
29 | 0 | 0 | |
|
Columbia Knights Allegheny 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.