COATESVILLE, PA · Chester County

PA AMERICAN COATESVILLE Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): PA1150106
System type: Community Water System
Population served: 36,960
Service connections: 14,541
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
August 1, 2023 – January 24, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorite
May 1, 2023 – May 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine dioxide
May 1, 2023 – May 31, 2023
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 10, 2010 – August 20, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 11, 2010 – May 14, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2010 – June 30, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 1, 2003 – March 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2002 – December 31, 2002
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2002 – March 31, 2002
Resolved
OCCT/SOWT Treatment Installation/Demonstration
Health-based
Lead and Copper Rule
February 18, 1997 – May 23, 2000
Resolved
Monitoring, Regular
—
Benzene
October 1, 1992 – December 31, 1992
Archived
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 1992 – December 31, 1992
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 1992 – December 31, 1992
Archived
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 1992 – December 31, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1992 – May 31, 1992
Archived
Monitoring, Regular
—
Benzene
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
Carbon tetrachloride
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
Benzene
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1992 – March 31, 1992
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1992 – March 31, 1992
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
Carbon tetrachloride
October 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
Trichloroethylene
October 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Benzene
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Carbon tetrachloride
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 1988 – June 30, 1988
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
August 1, 2023 – August 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2023 – January 24, 2024	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
May 1, 2023 – May 31, 2023	Monitoring and Reporting (DBP)	Chlorite	—	Resolved
May 1, 2023 – May 31, 2023	Monitoring and Reporting (DBP)	Chlorine dioxide	—	Resolved
August 1, 2012 – August 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2012 – August 31, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 10, 2010 – August 20, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 11, 2010 – May 14, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2010 – June 30, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2010 – March 31, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
October 1, 2002 – December 31, 2002	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2002 – March 31, 2002	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 18, 1997 – May 23, 2000	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Health-based	Resolved
October 1, 1992 – December 31, 1992	Monitoring, Regular	Benzene	—	Archived
October 1, 1992 – December 31, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Archived
October 1, 1992 – December 31, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
October 1, 1992 – December 31, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Archived
May 1, 1992 – May 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	Benzene	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	Carbon tetrachloride	—	Archived
April 1, 1992 – June 30, 1992	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	Benzene	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
December 1, 1991 – December 31, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1991 – December 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Archived
October 1, 1991 – December 31, 1991	Monitoring, Regular	Trichloroethylene	—	Archived
October 1, 1991 – December 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	p-Dichlorobenzene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Benzene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Carbon tetrachloride	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Trichloroethylene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,1-Dichloroethylene	—	Archived

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

Enforcement actions

January 24, 2024State Compliance achieved1 linked violation
January 24, 2024State Violation/Reminder Notice1 linked violation
January 24, 2024State Public Notification requested1 linked violation
October 11, 2023State Public Notification received3 linked violations
October 11, 2023State Compliance achieved3 linked violations
October 3, 2023State Public Notification requested1 linked violation
October 3, 2023State Violation/Reminder Notice1 linked violation
July 19, 2023State Public Notification requested2 linked violations
July 19, 2023State Violation/Reminder Notice1 linked violation
July 19, 2023State Formal Notice of Violation issued1 linked violation
October 18, 2012State Violation/Reminder Notice1 linked violation
October 18, 2012State Compliance achieved1 linked violation
October 5, 2012State Public Notification received1 linked violation
October 5, 2012State Compliance achieved1 linked violation
October 5, 2012State Public Notification requested1 linked violation
August 20, 2010State Violation/Reminder Notice2 linked violations
August 20, 2010State Formal Notice of Violation issued2 linked violations
August 20, 2010State Compliance achieved2 linked violations
May 14, 2010State Compliance achieved2 linked violations
May 14, 2010State Violation/Reminder Notice2 linked violations
June 4, 2003State Compliance achieved1 linked violation
March 27, 2003State Formal Notice of Violation issued2 linked violations
March 27, 2003State Compliance achieved2 linked violations
May 23, 2000State Compliance achieved1 linked violation
October 5, 1989State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 11, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 3, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record

Contact

PA AMERICAN COATESVILLE

610-404-1540

COATESVILLE, PA 19320