EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Chester, Pennsylvania

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems14active CWS · pop. 2,500+
Population served239,086reported total; may overlap
Current violation flag7.1%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Chester

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Pa American RoyersfordPA115016649,508Surface waterNo current violation flagged
Aqua Pa West ChesterPA115009848,600Surface waterNo current violation flagged
Pa American CoatesvillePA115010636,960Surface waterNo current violation flagged
Aqua Pa UwchlanPA115003535,518Surface water purchasedNo current violation flagged
Phoenixville Water DeptPA115007716,599Surface waterNo current violation flagged
Downingtown Water AuthorityPA11500269,900Surface waterNo current violation flagged
Aqua Pa FriendshipPA11501378,800Ground waterNo current violation flagged
Aqua Pa Spring RunPA11500898,151Surface water purchasedNo current violation flagged
Kennett Square Mun Water WorksPA11501086,328Surface water purchasedCurrent monitoring/reporting flag
Oxford BoroughPA11500665,280Surface water purchasedNo current violation flagged
London Grove Twp Mun AuthPA11501654,770Surface water purchasedNo current violation flagged
North Coventry Water SystemPA11502202,907Surface water purchasedNo current violation flagged
Honey Brook Boro WaterPA11501272,892Ground waterNo current violation flagged
West Grove BoroughPA11501052,873Ground waterNo current violation flagged

02 / SOURCE MIX

Surface water5 systems · 161,567 served
Surface water purchased6 systems · 62,954 served
Ground water3 systems · 14,565 served
How to read the population total

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.