WARRINGTON, PA · Bucks County

BCWSA MAIN LOWER SOUTH 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): PA1090079
System type: Community Water System
Population served: 52,621
Service connections: 15,800
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
September 1, 2025 – September 30, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 22, 2023 – October 25, 2023
Resolved
Notify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR)
—
Revised Total Coliform Rule
August 13, 2023 – October 25, 2023
Resolved
Treatment Technique, Level 2 Assessment (RTCR)
Health-based
Revised Total Coliform Rule
August 13, 2023 – October 25, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 11, 2022 – May 11, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2022 – June 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2022 – June 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2022 – March 31, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 10, 2018 – October 25, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 10, 2018 – October 25, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 10, 2018 – July 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2017 – December 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – September 14, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2015 – September 1, 2015
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2015 – May 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2014 – December 31, 2014
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 2011 – August 31, 2011
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 10, 2011 – March 8, 2011
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 2010 – December 31, 2010
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2010 – September 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2010 – March 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – March 31, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 10, 2009 – April 22, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2009 – June 30, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 10, 2007 – March 9, 2011
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2007 – July 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2005 – February 28, 2005
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
February 1, 2005 – February 28, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2005 – March 31, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – October 26, 2004
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2003 – December 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2003 – December 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2003 – March 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2003 – March 31, 2003
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1997 – September 19, 1997
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1996 – October 1, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1992 – December 31, 1993
Resolved
Monitoring, Regular
—
Cadmium
June 27, 1991 – June 26, 1992
Archived
Monitoring, Regular
—
Cadmium
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Cadmium
June 26, 1985 – June 25, 1986
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
September 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
September 22, 2023 – October 25, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 13, 2023 – October 25, 2023	Notify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR)	Revised Total Coliform Rule	—	Resolved
August 13, 2023 – October 25, 2023	Treatment Technique, Level 2 Assessment (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
May 11, 2022 – May 11, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2022 – June 30, 2022	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
November 10, 2018 – October 25, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 10, 2018 – October 25, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 10, 2018 – July 31, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2016 – September 14, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
July 11, 2015 – September 1, 2015	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 1, 2015 – May 31, 2015	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2011 – August 31, 2011	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
February 10, 2011 – March 8, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 1, 2010 – December 31, 2010	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2010 – September 30, 2010	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 10, 2009 – April 22, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
June 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 10, 2007 – March 9, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2007 – July 31, 2007	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2005 – February 28, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
February 1, 2005 – February 28, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – October 26, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2003 – December 31, 2003	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2003 – December 31, 2003	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2003 – March 31, 2003	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2003 – March 31, 2003	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 1997 – September 19, 1997	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1996 – October 1, 1996	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1992 – December 31, 1993	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
June 27, 1991 – June 26, 1992	Monitoring, Regular	Cadmium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Cadmium	—	Archived
June 26, 1985 – June 25, 1986	Monitoring, Regular	Cadmium	—	Archived

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

Enforcement actions

October 24, 2025State Public Notification received1 linked violation
October 24, 2025State Compliance achieved1 linked violation
October 24, 2025State Public Notification requested1 linked violation
October 24, 2025State Violation/Reminder Notice1 linked violation
October 25, 2023State Compliance achieved5 linked violations
October 25, 2023State Public Notification received4 linked violations
October 16, 2023State Public Notification requested1 linked violation
September 22, 2023State Public Notification requested1 linked violation
September 22, 2023State Violation/Reminder Notice3 linked violations
August 29, 2023State Violation/Reminder Notice2 linked violations
June 28, 2023State Compliance achieved1 linked violation
June 28, 2023State Public Notification received1 linked violation
August 10, 2022State Formal Notice of Violation issued1 linked violation
August 10, 2022State Public Notification requested1 linked violation
August 10, 2022State Public Notification requested1 linked violation
August 10, 2022State Formal Notice of Violation issued1 linked violation
July 28, 2022State Violation/Reminder Notice1 linked violation
July 28, 2022State Compliance achieved1 linked violation
July 28, 2022State Public Notification received1 linked violation
July 28, 2022State Public Notification requested1 linked violation
May 11, 2022State Violation/Reminder Notice2 linked violations
May 11, 2022State Compliance achieved2 linked violations
May 11, 2022State Public Notification received2 linked violations
May 11, 2022State Public Notification requested2 linked violations
March 5, 2019State Compliance achieved6 linked violations
February 21, 2019State Other6 linked violations
February 21, 2019State Bilateral Compliance Agreement signed6 linked violations
October 25, 2018State Public Notification received4 linked violations
October 25, 2018State Compliance achieved2 linked violations
October 25, 2018State Public Notification requested4 linked violations
October 25, 2018State Violation/Reminder Notice4 linked violations
July 31, 2018State Public Notification received2 linked violations
July 31, 2018State Public Notification requested2 linked violations
July 31, 2018State Violation/Reminder Notice2 linked violations
July 31, 2018State Compliance achieved2 linked violations
May 11, 2018State Public Notification requested1 linked violation
May 11, 2018State Violation/Reminder Notice1 linked violation
May 11, 2018State Violation/Reminder Notice1 linked violation
May 11, 2018State Public Notification received1 linked violation
May 11, 2018State Public Notification received1 linked violation
May 11, 2018State Public Notification requested1 linked violation
May 8, 2018State Public Notification received3 linked violations
May 8, 2018State Violation/Reminder Notice1 linked violation
May 8, 2018State Violation/Reminder Notice1 linked violation
May 8, 2018State Public Notification requested3 linked violations
May 8, 2018State Public Notification requested3 linked violations
May 8, 2018State Public Notification received3 linked violations
March 26, 2018State Violation/Reminder Notice1 linked violation
March 26, 2018State Violation/Reminder Notice1 linked violation
February 14, 2018State Violation/Reminder Notice1 linked violation
February 14, 2018State Violation/Reminder Notice1 linked violation
November 21, 2016State Compliance achieved1 linked violation
September 14, 2016State Compliance achieved1 linked violation
September 14, 2016State Violation/Reminder Notice1 linked violation
September 14, 2016State Violation/Reminder Notice1 linked violation
September 14, 2016State Public Notification requested1 linked violation
September 14, 2016State Compliance achieved1 linked violation
March 25, 2016State Compliance achieved1 linked violation
January 5, 2016State Compliance achieved1 linked violation
January 5, 2016State Public Notification received1 linked violation
January 5, 2016State Public Notification requested1 linked violation
December 2, 2015State Violation/Reminder Notice1 linked violation
November 4, 2015State Violation/Reminder Notice1 linked violation
September 1, 2015State Compliance achieved2 linked violations
September 1, 2015State Public Notification requested1 linked violation
September 1, 2015State Public Notification received2 linked violations
July 30, 2015State Violation/Reminder Notice2 linked violations
July 30, 2015State Public Notification requested1 linked violation
February 20, 2015State Compliance achieved2 linked violations
January 26, 2015State Violation/Reminder Notice2 linked violations
January 13, 2015State Compliance achieved2 linked violations
November 25, 2014State Violation/Reminder Notice2 linked violations
November 15, 2011State Compliance achieved1 linked violation
September 26, 2011State Violation/Reminder Notice1 linked violation
September 26, 2011State Violation/Reminder Notice1 linked violation
April 22, 2011State Public Notification received4 linked violations
April 22, 2011State Formal Notice of Violation issued4 linked violations
April 22, 2011State Public Notification requested2 linked violations
April 22, 2011State Compliance achieved2 linked violations
April 22, 2011State Public Notification received2 linked violations
April 22, 2011State Compliance Meeting conducted2 linked violations
April 22, 2011State Formal Notice of Violation issued2 linked violations
April 22, 2011State Compliance achieved4 linked violations
April 22, 2011State Compliance Meeting conducted4 linked violations
March 9, 2011State Compliance achieved2 linked violations
March 8, 2011State Compliance achieved2 linked violations
March 7, 2011State Violation/Reminder Notice2 linked violations
July 27, 2010State Violation/Reminder Notice2 linked violations
July 27, 2010State Public Notification requested2 linked violations
July 27, 2010State Public Notification requested2 linked violations
July 27, 2010State Violation/Reminder Notice2 linked violations
May 24, 2010State Compliance achieved2 linked violations
April 29, 2010State Public Notification requested2 linked violations
April 26, 2010State Compliance achieved2 linked violations
April 26, 2010State Violation/Reminder Notice4 linked violations
January 19, 2010State Compliance Meeting conducted2 linked violations
August 28, 2009State Compliance achieved1 linked violation
November 7, 2008State Compliance Meeting conducted2 linked violations
November 7, 2008State Compliance Meeting conducted3 linked violations
March 27, 2006State Compliance achieved2 linked violations
March 27, 2006State Violation/Reminder Notice2 linked violations
October 26, 2004State Consent Decree/Judgement1 linked violation
October 26, 2004State Compliance achieved1 linked violation
October 26, 2004State Violation/Reminder Notice1 linked violation
April 21, 2004State Compliance achieved2 linked violations
March 5, 2004State Compliance achieved2 linked violations
January 27, 2004State Violation/Reminder Notice2 linked violations
August 14, 1986State Technical Assistance Visit1 linked violation

Contact

BCWSA MAIN LOWER SOUTH

215-343-2538

WARRINGTON, PA 18976