COUNTY WATER-SYSTEM LEDGER
Chester, Pennsylvania
EPA’s September 2026 export lists 14 active community water systems serving Chester, Pennsylvania, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Chester, Pennsylvania
EPA associates 14 covered systems with Chester, Pennsylvania; their reported population-served values total 239,086 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Pa American RoyersfordPA1150166 | 49,508 | Surface water | No current violation flagged |
| Aqua Pa West ChesterPA1150098 | 48,600 | Surface water | No current violation flagged |
| Pa American CoatesvillePA1150106 | 36,960 | Surface water | No current violation flagged |
| Aqua Pa UwchlanPA1150035 | 35,518 | Surface water purchased | No current violation flagged |
| Phoenixville Water DeptPA1150077 | 16,599 | Surface water | No current violation flagged |
| Downingtown Water AuthorityPA1150026 | 9,900 | Surface water | No current violation flagged |
| Aqua Pa FriendshipPA1150137 | 8,800 | Ground water | No current violation flagged |
| Aqua Pa Spring RunPA1150089 | 8,151 | Surface water purchased | No current violation flagged |
| Kennett Square Mun Water WorksPA1150108 | 6,328 | Surface water purchased | Current monitoring/reporting flag |
| Oxford BoroughPA1150066 | 5,280 | Surface water purchased | No current violation flagged |
| London Grove Twp Mun AuthPA1150165 | 4,770 | Surface water purchased | No current violation flagged |
| North Coventry Water SystemPA1150220 | 2,907 | Surface water purchased | No current violation flagged |
| Honey Brook Boro WaterPA1150127 | 2,892 | Ground water | No current violation flagged |
| West Grove BoroughPA1150105 | 2,873 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Chester, Pennsylvania
EPA classifies 14 systems serving Chester, Pennsylvania across 3 primary-source categories; Surface water is the largest category with 5 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.