Pennsylvania
Chester County drinking water quality
269 active public water systems serve 301,808 people in Chester County. 121 are compliant, 148 had at least one EPA violation in the past three years, 0 are designated serious violators, and 2 carry a health flag.
Needs attention
Community water systems
67 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Independence Park |
91 | 3 | 2 | |
|
Woodbrooke Water Authority |
87 | 2 | 1 | |
|
MT Idy Mobile Home Park |
80 | 2 | 0 | |
|
Riveredge Rentals |
80 | 4 | 1 | |
|
ST Mary of Providence Center |
75 | 2 | 0 | |
|
Kadima Rehab |
70 | 3 | 0 | |
|
Maplewood Mobile Home Park |
70 | 7 | 0 | |
|
Lake RD MHP Menu Mate Mushroom |
65 | 4 | 0 | |
|
Echo Valley MHP |
60 | 7 | 1 | |
|
Perry Phillips Mobile Homes |
60 | 3 | 1 | |
|
Ridgeview MHP |
55 | 3 | 0 | |
|
Highland Court |
54 | 2 | 0 | |
|
Taylors Mobile Home Park |
50 | 0 | 0 | |
|
Camphill Spec Sch Beaver Farm |
45 | 1 | 0 | |
|
Warwick Mobile Home Park |
40 | 1 | 0 | |
|
Caln Mobile Home Park |
30 | 0 | 0 | |
|
Doe Run Mobile Home Park |
29 | 7 | 0 |
Non-community systems (202: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (530, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.