WILLIAMSTOWN, PA · Dauphin County

WILLIAMSTOWN BORO 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): PA7220037
System type: Community Water System
Population served: 2,390
Service connections: 926
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2025 – March 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2023 – June 30, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2022 – October 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2022 – October 31, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2021 – November 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2021 – November 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2021 – December 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2021 – December 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
September 1, 2020 – November 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2019 – September 30, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2019 – June 30, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2019 – May 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2019 – June 30, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2019 – April 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2016 – September 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2014 – February 28, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2013 – November 30, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2013 – November 30, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2013 – October 31, 2013
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2013 – October 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2013 – December 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2011 – July 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 26, 2011
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2011 – July 31, 2011
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2008 – January 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2008 – February 29, 2008
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2008 – January 31, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2007 – November 6, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2007 – November 6, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – August 20, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2007 – May 31, 2007
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
May 1, 2007 – May 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Toluene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Styrene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2006 – November 30, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2006 – November 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2006 – December 26, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – November 21, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2006 – September 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2006 – June 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2006 – June 30, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2006 – March 31, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2006 – February 28, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2005 – September 30, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2005 – September 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2005 – September 30, 2005
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2005 – June 30, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2005 – June 30, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2005 – June 30, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – December 31, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2004 – February 29, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2004 – March 31, 2004
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2003 – January 12, 2004
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2003 – September 30, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2003 – September 30, 2003
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2003 – August 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – October 15, 2003
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Barium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Chromium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Mercury
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Selenium
January 1, 1993 – December 31, 1993
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1991 – April 30, 1991
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 1991 – March 31, 1991
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 1991 – February 28, 1991
Archived
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 1990 – December 31, 1990
Archived
Monitoring, Regular
—
Styrene
October 1, 1990 – December 31, 1990
Archived
Monitoring, Regular
—
Fluoride
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Mercury
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Selenium
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Nitrate
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Arsenic
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Barium
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Cadmium
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Chromium
June 27, 1990 – June 26, 1991
Archived
Monitoring, Regular
—
Nitrate
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Arsenic
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Selenium
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Barium
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Cadmium
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Chromium
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Fluoride
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Mercury
June 27, 1989 – June 26, 1990
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
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
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 1, 2025 – March 31, 2025	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
July 1, 2023 – July 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2021 – November 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2021 – November 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2020 – November 30, 2020	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2019 – June 30, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2019 – May 31, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 1, 2014 – February 28, 2014	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
November 1, 2013 – November 30, 2013	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
November 1, 2013 – November 30, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2013 – October 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2013 – October 31, 2013	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – July 31, 2011	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2011 – September 26, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – July 31, 2011	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2008 – January 31, 2008	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2008 – February 29, 2008	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2008 – January 31, 2008	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 11, 2007 – November 6, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 11, 2007 – November 6, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2007 – August 20, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2007 – May 31, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2007 – May 31, 2007	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Benzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Toluene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Styrene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2007 – January 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
November 1, 2006 – November 30, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
November 1, 2006 – November 30, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2006 – December 26, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2006 – August 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2006 – August 31, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2006 – November 21, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
March 1, 2006 – March 31, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2006 – February 28, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2005 – June 30, 2005	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2005 – June 30, 2005	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2005 – June 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2005 – June 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	Styrene	—	Resolved
February 1, 2004 – February 29, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2003 – January 12, 2004	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
September 1, 2003 – September 30, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2003 – September 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2003 – August 31, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2003 – August 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2003 – October 15, 2003	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1996 – December 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Barium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Chromium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Mercury	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Selenium	—	Resolved
April 1, 1991 – April 30, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 1991 – March 31, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
February 1, 1991 – February 28, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1990 – December 31, 1990	Monitoring, Regular	DICHLOROMETHANE	—	Archived
October 1, 1990 – December 31, 1990	Monitoring, Regular	Styrene	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Fluoride	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Mercury	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Selenium	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Nitrate	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Arsenic	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Barium	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Cadmium	—	Archived
June 27, 1990 – June 26, 1991	Monitoring, Regular	Chromium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Nitrate	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Arsenic	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Selenium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Barium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Cadmium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Chromium	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Fluoride	—	Archived
June 27, 1989 – June 26, 1990	Monitoring, Regular	Mercury	—	Archived
July 1, 1980 – June 30, 1984	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	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

November 4, 2025State Public Notification requested1 linked violation
November 4, 2025State Formal Notice of Violation issued1 linked violation
May 16, 2025State Formal Notice of Violation issued1 linked violation
May 16, 2025State Public Notification requested1 linked violation
September 27, 2024State Public Notification received1 linked violation
July 10, 2024State Public Notification received2 linked violations
January 17, 2024State Compliance achieved4 linked violations
September 11, 2023State Public Notification requested1 linked violation
September 11, 2023State Formal Notice of Violation issued1 linked violation
August 9, 2023State Public Notification requested2 linked violations
August 9, 2023State Violation/Reminder Notice1 linked violation
August 9, 2023State Formal Notice of Violation issued2 linked violations
December 15, 2022State Compliance achieved2 linked violations
December 14, 2022State Public Notification received2 linked violations
December 12, 2022State Violation/Reminder Notice2 linked violations
February 22, 2022State Compliance achieved2 linked violations
February 22, 2022State Compliance achieved2 linked violations
February 14, 2022State Compliance achieved2 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
February 14, 2022State Violation/Reminder Notice4 linked violations
January 10, 2022State Violation/Reminder Notice2 linked violations
January 10, 2022State Compliance achieved2 linked violations
December 10, 2021State Public Notification received1 linked violation
December 10, 2021State Public Notification received1 linked violation
March 18, 2021State Compliance achieved1 linked violation
March 18, 2021State Compliance achieved1 linked violation
February 11, 2021State Compliance achieved1 linked violation
February 11, 2021State Violation/Reminder Notice1 linked violation
February 11, 2021State Public Notification requested1 linked violation
November 13, 2020State Violation/Reminder Notice1 linked violation
November 13, 2020State Public Notification requested1 linked violation
November 13, 2020State Public Notification requested1 linked violation
November 13, 2020State Violation/Reminder Notice1 linked violation
October 11, 2019State Compliance achieved1 linked violation
October 11, 2019State Violation/Reminder Notice1 linked violation
August 14, 2019State Compliance achieved2 linked violations
August 14, 2019State Violation/Reminder Notice2 linked violations
July 11, 2019State Compliance achieved1 linked violation
July 11, 2019State Violation/Reminder Notice1 linked violation
June 14, 2019State Compliance achieved1 linked violation
June 14, 2019State Violation/Reminder Notice1 linked violation
October 6, 2017State Public Notification received2 linked violations
November 4, 2016State Violation/Reminder Notice2 linked violations
November 4, 2016State Public Notification requested2 linked violations
November 4, 2016State Compliance achieved2 linked violations
September 30, 2014State Violation/Reminder Notice1 linked violation
September 30, 2014State Compliance achieved1 linked violation
April 8, 2014State Compliance achieved1 linked violation
April 8, 2014State Violation/Reminder Notice1 linked violation
January 6, 2014State Compliance achieved3 linked violations
January 6, 2014State Violation/Reminder Notice3 linked violations
December 17, 2013State Compliance achieved2 linked violations
December 4, 2013State Violation/Reminder Notice2 linked violations
September 26, 2011State Compliance achieved3 linked violations
September 13, 2011State Formal Notice of Violation issued3 linked violations
November 6, 2008State Bilateral Compliance Agreement signed2 linked violations
November 6, 2008State Compliance achieved2 linked violations
April 8, 2008State Compliance achieved22 linked violations
April 8, 2008State Public Notification received22 linked violations
February 29, 2008State Violation/Reminder Notice3 linked violations
February 29, 2008State Compliance achieved3 linked violations
February 19, 2008State Public Notification requested22 linked violations
February 19, 2008State Formal Notice of Violation issued22 linked violations
November 9, 2007State Public Notification requested2 linked violations
August 29, 2007State Violation/Reminder Notice2 linked violations
August 29, 2007State Violation/Reminder Notice2 linked violations
August 20, 2007State Compliance achieved1 linked violation
August 20, 2007State Violation/Reminder Notice1 linked violation
July 5, 2007State Violation/Reminder Notice3 linked violations
July 5, 2007State Compliance achieved3 linked violations
June 18, 2007State Compliance achieved4 linked violations
June 18, 2007State Violation/Reminder Notice4 linked violations
June 13, 2007State Violation/Reminder Notice3 linked violations
June 13, 2007State Compliance achieved3 linked violations
March 7, 2007State Violation/Reminder Notice1 linked violation
March 7, 2007State Compliance achieved1 linked violation
December 26, 2006State Compliance achieved3 linked violations
December 26, 2006State Violation/Reminder Notice3 linked violations
December 5, 2006State Compliance achieved2 linked violations
November 21, 2006State Compliance achieved1 linked violation
October 4, 2006State Violation/Reminder Notice1 linked violation
October 2, 2006State Violation/Reminder Notice3 linked violations
October 2, 2006State Compliance achieved3 linked violations
August 10, 2006State Violation/Reminder Notice2 linked violations
August 10, 2006State Public Notification requested2 linked violations
August 10, 2006State Public Notification requested2 linked violations
August 10, 2006State Violation/Reminder Notice2 linked violations
June 14, 2006State Compliance achieved3 linked violations
June 14, 2006State Violation/Reminder Notice3 linked violations
July 13, 2004State Consent Decree/Judgement1 linked violation
July 13, 2004State Violation/Reminder Notice1 linked violation
July 13, 2004State Compliance achieved1 linked violation
May 21, 2004State Violation/Reminder Notice1 linked violation
May 21, 2004State Compliance achieved1 linked violation
May 21, 2004State Consent Decree/Judgement1 linked violation
January 12, 2004State Compliance achieved1 linked violation
January 12, 2004State Consent Decree/Judgement1 linked violation
November 12, 2003State Consent Decree/Judgement2 linked violations
November 12, 2003State Compliance achieved3 linked violations
November 12, 2003State Violation/Reminder Notice2 linked violations
November 7, 2003State Compliance achieved1 linked violation
October 27, 2003State Violation/Reminder Notice2 linked violations
October 27, 2003State Consent Decree/Judgement2 linked violations
October 15, 2003State Violation/Reminder Notice1 linked violation
October 15, 2003State Consent Decree/Judgement1 linked violation
October 15, 2003State Compliance achieved1 linked violation
March 4, 1992State Show-Cause hearinggeneral compliance action — not tied to a specific violation on record
August 19, 1991State Formal Notice of Violation issued8 linked violations
February 12, 1991State Technical Assistance Visit2 linked violations
December 13, 1990State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 8, 1990State Technical Assistance Visit38 linked violations
June 28, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
July 1, 1987State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 8, 1985State Compliance achievedgeneral 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
August 24, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 27, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 21, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Contact

WILLIAMSTOWN BORO AUTH

717-647-4466

WILLIAMSTOWN, PA 17098