COLLEGEVILLE, PA · Montgomery County

YERKES WATER ASSOCIATION 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): PA1460064
System type: Community Water System
Population served: 165
Service connections: 59
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
February 13, 2026
Unaddressed
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
February 1, 2026 – February 28, 2026
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
August 13, 2025 – October 8, 2025
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
August 1, 2025 – August 31, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2025 – July 31, 2025
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2022 – July 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2022 – April 30, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2020 – July 31, 2020
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
June 1, 2020 – June 30, 2020
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
September 1, 2019 – September 30, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 13, 2019 – May 13, 2019
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
March 1, 2019 – March 31, 2019
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
January 1, 2019 – January 31, 2019
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
July 1, 2018 – July 31, 2018
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2018 – April 30, 2018
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
February 1, 2018 – February 28, 2018
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2018 – March 31, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 11, 2017 – July 3, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 13, 2017 – April 17, 2017
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
February 1, 2017 – February 28, 2017
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
September 1, 2016 – September 30, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – September 28, 2016
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2016 – March 31, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2015 – March 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 11, 2013 – December 9, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – December 27, 2013
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2013 – August 8, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2012 – September 30, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2011 – November 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2009 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2009 – March 24, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2008 – January 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2007 – March 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2005 – September 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2005 – June 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2005 – March 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2004 – July 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2004 – June 30, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2004 – March 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2004 – March 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – October 7, 2003
Resolved
Monitoring, Regular
—
Styrene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Xylenes, Total
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Trichloroethylene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
CHLOROBENZENE
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Benzene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Toluene
July 1, 1999 – September 30, 1999
Archived
Monitoring, Regular
—
Ethylbenzene
July 1, 1999 – September 30, 1999
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1999 – October 7, 2002
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Chromium
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Mercury
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Nickel
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Selenium
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Barium
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1996 – June 30, 2000
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1996 – September 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1994 – December 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Benzene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Toluene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Styrene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 1994 – September 30, 1994
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1994 – October 31, 1995
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Regular
—
Benzene
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
—
1,2-Dichloroethane
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
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – December 22, 1995
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
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Trichloroethylene
October 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Benzene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1991 – March 31, 1991
Archived

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
February 13, 2026	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
February 1, 2026 – February 28, 2026	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
August 13, 2025 – October 8, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2025 – August 31, 2025	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
July 1, 2025 – July 31, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring, Regular	Radium-226	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring, Regular	Radium-228	—	Resolved
July 1, 2022 – July 31, 2022	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2022 – April 30, 2022	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
June 1, 2020 – June 30, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
September 1, 2019 – September 30, 2019	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
March 13, 2019 – May 13, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 2019 – March 31, 2019	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
March 1, 2019 – March 31, 2019	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2019 – January 31, 2019	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
July 1, 2018 – July 31, 2018	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
April 1, 2018 – April 30, 2018	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
February 1, 2018 – February 28, 2018	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
April 11, 2017 – July 3, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 13, 2017 – April 17, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 1, 2017 – February 28, 2017	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
September 1, 2016 – September 30, 2016	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
July 1, 2016 – September 28, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2015 – March 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 11, 2013 – December 9, 2013	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2013 – December 27, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2013 – August 8, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
November 1, 2011 – November 30, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2010 – August 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2009 – June 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2009 – March 24, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2008 – January 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2005 – June 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – July 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
March 1, 2004 – March 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2003 – October 7, 2003	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 1999 – September 30, 1999	Monitoring, Regular	Styrene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Xylenes, Total	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	DICHLOROMETHANE	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	o-Dichlorobenzene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	p-Dichlorobenzene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,2-Dichloroethane	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Carbon tetrachloride	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,2-Dichloropropane	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Trichloroethylene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Tetrachloroethylene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	CHLOROBENZENE	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Benzene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Toluene	—	Archived
July 1, 1999 – September 30, 1999	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1999 – October 7, 2002	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Chromium	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Mercury	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Nickel	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Selenium	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Barium	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Arsenic	—	Resolved
July 1, 1996 – June 30, 2000	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 1996 – September 30, 1996	Monitoring, Regular	Nitrate	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1994 – December 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Benzene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Toluene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Styrene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 1994 – October 31, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 1994 – September 30, 1994	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Benzene	—	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	1,2-Dichloroethane	—	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 – December 22, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	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, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved
October 1, 1991 – December 31, 1991	Maximum Contaminant Level Violation, Average	Trichloroethylene	Health-based	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Benzene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Archived

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

March 25, 2026State Violation/Reminder Notice2 linked violations
October 8, 2025State Compliance achieved2 linked violations
October 8, 2025State Public Notification received2 linked violations
October 8, 2025State Public Notification requested1 linked violation
September 25, 2025State Violation/Reminder Notice2 linked violations
September 5, 2025State Violation/Reminder Notice1 linked violation
September 5, 2025State Compliance achieved1 linked violation
September 5, 2025State Public Notification received1 linked violation
September 5, 2025State Public Notification requested1 linked violation
June 14, 2023State Compliance achieved2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
November 9, 2022State Compliance achieved1 linked violation
August 29, 2022State Violation/Reminder Notice1 linked violation
August 29, 2022State Violation/Reminder Notice1 linked violation
June 15, 2022State Compliance achieved1 linked violation
June 9, 2022State Violation/Reminder Notice1 linked violation
February 11, 2021State Public Notification received1 linked violation
February 11, 2021State Compliance achieved2 linked violations
February 11, 2021State Public Notification requested1 linked violation
September 4, 2020State Violation/Reminder Notice1 linked violation
August 10, 2020State Violation/Reminder Notice1 linked violation
October 28, 2019State Public Notification received1 linked violation
October 28, 2019State Public Notification requested1 linked violation
October 28, 2019State Compliance achieved1 linked violation
October 28, 2019State Violation/Reminder Notice1 linked violation
June 11, 2019State Public Notification received1 linked violation
June 11, 2019State Compliance achieved1 linked violation
May 13, 2019State Boil Water Order2 linked violations
May 13, 2019State Violation/Reminder Notice3 linked violations
May 13, 2019State Compliance achieved4 linked violations
May 13, 2019State Public Notification received4 linked violations
May 13, 2019State Public Notification requested5 linked violations
March 18, 2019State Violation/Reminder Notice2 linked violations
August 24, 2018State Compliance achieved1 linked violation
August 24, 2018State Public Notification received1 linked violation
August 24, 2018State Public Notification requested1 linked violation
August 24, 2018State Violation/Reminder Notice1 linked violation
August 8, 2018State Compliance achieved1 linked violation
August 8, 2018State Public Notification received1 linked violation
August 8, 2018State Public Notification requested1 linked violation
August 8, 2018State Violation/Reminder Notice1 linked violation
July 10, 2018State Compliance achieved3 linked violations
July 3, 2018State Public Notification requested1 linked violation
July 3, 2018State Compliance achieved1 linked violation
July 3, 2018State Public Notification received1 linked violation
June 8, 2018State Violation/Reminder Notice1 linked violation
May 7, 2018State Violation/Reminder Notice2 linked violations
April 9, 2018State Violation/Reminder Notice1 linked violation
August 28, 2017State Public Notification received1 linked violation
July 3, 2017State Compliance achieved1 linked violation
July 3, 2017State Public Notification received1 linked violation
May 24, 2017State Public Notification requested1 linked violation
May 24, 2017State Violation/Reminder Notice1 linked violation
May 19, 2017State Public Notification requested1 linked violation
May 19, 2017State Compliance achieved1 linked violation
April 17, 2017State Public Notification requested2 linked violations
April 17, 2017State Public Notification received2 linked violations
April 17, 2017State Compliance achieved2 linked violations
April 7, 2017State Violation/Reminder Notice2 linked violations
November 21, 2016State Violation/Reminder Notice1 linked violation
November 21, 2016State Public Notification requested1 linked violation
November 21, 2016State Public Notification received1 linked violation
November 21, 2016State Compliance achieved1 linked violation
September 28, 2016State Compliance achieved1 linked violation
September 26, 2016State Violation/Reminder Notice1 linked violation
August 29, 2016State Violation/Reminder Notice1 linked violation
August 29, 2016State Compliance achieved1 linked violation
June 13, 2016State Violation/Reminder Notice1 linked violation
October 26, 2015State Compliance achieved1 linked violation
September 23, 2015State Violation/Reminder Notice1 linked violation
September 23, 2015State Violation/Reminder Notice1 linked violation
June 23, 2015State Compliance achieved2 linked violations
June 23, 2015State Public Notification received2 linked violations
April 23, 2015State Public Notification requested2 linked violations
April 23, 2015State Violation/Reminder Notice2 linked violations
December 27, 2013State Compliance achieved1 linked violation
December 9, 2013State Compliance achieved1 linked violation
December 9, 2013State Violation/Reminder Notice2 linked violations
August 8, 2013State Public Notification received2 linked violations
August 8, 2013State Violation/Reminder Notice2 linked violations
August 8, 2013State Compliance achieved2 linked violations
August 8, 2013State Public Notification requested2 linked violations
May 30, 2013State Compliance achieved2 linked violations
May 30, 2013State Public Notification received2 linked violations
December 3, 2012State Public Notification requested2 linked violations
November 26, 2012State Violation/Reminder Notice2 linked violations
December 19, 2011State Compliance achieved1 linked violation
November 28, 2011State Public Notification received1 linked violation
November 28, 2011State Compliance achieved1 linked violation
November 2, 2010State Formal Notice of Violation issued1 linked violation
November 2, 2010State Public Notification requested1 linked violation
July 22, 2010State Compliance achieved2 linked violations
February 26, 2010State Compliance achieved2 linked violations
January 25, 2010State Violation/Reminder Notice4 linked violations
July 27, 2009State Compliance achieved1 linked violation
March 24, 2009State Compliance achieved1 linked violation
March 7, 2008State Compliance achieved2 linked violations
July 13, 2007State Compliance achieved1 linked violation
March 1, 2006State Compliance achieved1 linked violation
December 8, 2005State Compliance achieved3 linked violations
November 23, 2005State Violation/Reminder Notice1 linked violation
November 23, 2005State Compliance achieved3 linked violations
November 23, 2005State Consent Decree/Judgement3 linked violations
February 17, 2005State Compliance achieved5 linked violations
January 13, 2005State Violation/Reminder Notice5 linked violations
January 13, 2005State Public Notification requested5 linked violations
October 7, 2003State Compliance achieved1 linked violation
December 31, 2002Federal Compliance achieved19 linked violations
December 16, 2002State Compliance achieved1 linked violation
October 7, 2002State Compliance achieved1 linked violation
December 31, 1994State Compliance achieved24 linked violations
June 30, 1994State Compliance achieved32 linked violations
October 17, 1991State Other8 linked violations
May 8, 1991State Violation/Reminder Notice8 linked violations

Contact

YERKES WATER ASSOCIATION

610-489-1523

COLLEGEVILLE, PA 19426