Public Water Partners

BRYN MAWR, PA · Chester County

PSW-DILWORTHOWN Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 4, 1994. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Chester County, PA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.

System facts

System ID (PWSID)
PA1150058
System type
Community Water System
Population served
224
Service connections
1
Ownership
privately owned
Water source
groundwater (wells)

PSW-DILWORTHOWN is one of 3,064 community water systems in Pennsylvania in the 500 or fewer people size category, formerly serving 224 people from groundwater.

EPA's federal records list this system as inactive in 1994; the record below is historical.

As of August 1, 2026, its federal record holds 17 entries between 1976 and 1993, all of which EPA lists as closed. Nothing has been added since 1993.

All 17 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals and the Radionuclides and Revised Rad Rule.

Violation history

  • Monitoring, Regular

    —

    Styrene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Benzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Toluene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    August 1, 1976 – July 31, 1980

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

610-525-1400

BRYN MAWR, PA 19010