WEST GROVE, PA · Chester County

LONDON GROVE TWP MUN AUTH Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): PA1150165
System type: Community Water System
Population served: 4,770
Service connections: 1,663
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – October 9, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2021 – December 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2021 – December 31, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2016 – August 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2016 – September 30, 2016
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – June 13, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2015 – September 30, 2015
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2013 – June 9, 2014
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
November 1, 2012 – November 30, 2012
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
December 1, 2010 – December 31, 2010
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
November 1, 2010 – November 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2009 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2008 – September 30, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 11, 2007 – May 21, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2007 – March 31, 2007
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
July 1, 2006 – July 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2006 – September 11, 2006
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
September 1, 2005 – September 30, 2005
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2005 – August 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2005 – September 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2004 – July 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2004 – June 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2004 – March 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
April 1, 2001 – April 30, 2001
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
March 1, 2001 – March 31, 2001
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
February 1, 2001 – February 28, 2001
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
January 1, 2001 – January 31, 2001
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
October 1, 2000 – October 31, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
September 1, 2000 – September 30, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2000 – August 31, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
July 1, 2000 – July 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2000 – June 30, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
June 1, 2000 – June 30, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
May 1, 2000 – May 31, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
April 1, 2000 – April 30, 2000
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
February 1, 2000 – February 29, 2000
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1995 – March 6, 1998
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
July 1, 2024 – October 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2016 – August 31, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2016 – June 13, 2016	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2013 – June 9, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 1, 2012 – November 30, 2012	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
November 1, 2010 – November 30, 2010	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 11, 2007 – May 21, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2006 – July 31, 2006	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
July 1, 2006 – September 11, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
August 1, 2005 – August 31, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2004 – July 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2001 – April 30, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
March 1, 2001 – March 31, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
February 1, 2001 – February 28, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
January 1, 2001 – January 31, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
October 1, 2000 – October 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
September 1, 2000 – September 30, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
August 1, 2000 – August 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
July 1, 2000 – July 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
June 1, 2000 – June 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2000 – June 30, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
May 1, 2000 – May 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
April 1, 2000 – April 30, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
February 1, 2000 – February 29, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
January 1, 1995 – March 6, 1998	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

February 6, 2026State Formal Notice of Violation issued1 linked violation
October 9, 2024State Compliance achieved1 linked violation
October 9, 2024State Public Notification requested1 linked violation
February 1, 2023State Public Notification received2 linked violations
February 1, 2023State Public Notification received2 linked violations
February 1, 2023State Compliance achieved2 linked violations
January 25, 2023State Public Notification requested2 linked violations
January 25, 2023State Compliance achieved2 linked violations
January 25, 2023State Violation/Reminder Notice2 linked violations
February 14, 2022State Violation/Reminder Notice2 linked violations
February 14, 2022State Public Notification requested2 linked violations
February 14, 2022State Public Notification requested2 linked violations
February 14, 2022State Violation/Reminder Notice2 linked violations
June 21, 2017State Compliance achieved2 linked violations
January 3, 2017State Public Notification received2 linked violations
October 5, 2016State Violation/Reminder Notice2 linked violations
June 13, 2016State Compliance achieved1 linked violation
November 17, 2015State Compliance achieved2 linked violations
November 17, 2015State Public Notification requested2 linked violations
November 17, 2015State Violation/Reminder Notice2 linked violations
January 20, 2015State Compliance achieved2 linked violations
November 26, 2014State Violation/Reminder Notice2 linked violations
June 9, 2014State Compliance achieved1 linked violation
December 3, 2013State Violation/Reminder Notice1 linked violation
December 3, 2013State Public Notification requested1 linked violation
January 2, 2013State Compliance achieved3 linked violations
February 3, 2011State Compliance achieved3 linked violations
February 3, 2010State Compliance achieved2 linked violations
November 6, 2008State Compliance achieved1 linked violation
May 21, 2007State Public Notification received1 linked violation
May 21, 2007State Compliance achieved1 linked violation
May 2, 2007State Public Notification requested2 linked violations
May 2, 2007State Compliance achieved1 linked violation
May 2, 2007State Public Notification received1 linked violation
May 2, 2007State Formal Notice of Violation issued2 linked violations
September 11, 2006State Compliance achieved2 linked violations
January 23, 2006State Consent Decree/Judgement1 linked violation
January 23, 2006State Compliance achieved1 linked violation
January 23, 2006State Compliance achieved1 linked violation
January 23, 2006State Consent Decree/Judgement1 linked violation
January 11, 2006State Consent Decree/Judgement1 linked violation
January 11, 2006State Compliance achieved1 linked violation
December 20, 2005State Consent Decree/Judgement2 linked violations
December 20, 2005State Compliance achieved2 linked violations
December 20, 2005State Compliance achieved2 linked violations
December 20, 2005State Consent Decree/Judgement2 linked violations
March 29, 2005State Compliance achieved3 linked violations
February 11, 2005State Formal Notice of Violation issued1 linked violation
January 5, 2005State Formal Notice of Violation issued2 linked violations
September 2, 2004State Consent Decree/Judgement1 linked violation
September 2, 2004State Compliance achieved1 linked violation
January 29, 2004State Compliance achieved1 linked violation
January 29, 2004State Violation/Reminder Notice1 linked violation
January 7, 2004State Compliance achieved1 linked violation
January 7, 2004State Violation/Reminder Notice1 linked violation
September 8, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Contact

LONDON GROVE TWP MUN AUTH

610-345-0300

WEST GROVE, PA 19390