WEST CHESTER, PA · Chester County

CHATWOOD WATER COMPANY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of October 18, 2000. 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): PA1150099
System type: Community Water System
Population served: 300
Service connections: 75
Ownership: privately owned
Water source: groundwater (wells)

CHATWOOD WATER COMPANY is one of 3,064 community water systems in Pennsylvania in the 500 or fewer people size category, formerly serving 300 people from groundwater.

EPA's federal records list this system as inactive in 2000; the record below is historical.

As of August 1, 2026, its federal record holds 48 entries between 1993 and 1996, all of which EPA lists as closed. Nothing has been added since 1996.

Of the 48, 47 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, the Lead and Copper Rule, and inorganic chemicals.

Violation history

OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
July 1, 1996 – September 14, 1998
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1994 – June 30, 1994
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Benzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Toluene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Styrene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Toluene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Styrene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Benzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – February 15, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1993 – February 15, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 1996 – September 14, 1998	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
April 1, 1994 – June 30, 1994	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Benzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Toluene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Styrene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Toluene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Styrene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Benzene	—	Resolved
January 1, 1994 – January 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – February 15, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – February 15, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 4, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

610-296-6740

WEST CHESTER, PA 19382