PORTERSVILLE, PA · Butler County

LAKE ARTHUR ESTATES Water System

Current status

1 open health-based violation on record as of July 4, 2026. See the violation history below for contaminant and status details.

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): PA5100054
System type: Community Water System
Population served: 460
Service connections: 325
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
January 11, 2026 – February 19, 2026
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2026 – January 31, 2026
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Radium-226
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2025 – December 31, 2025
Archived
Failure To Address Deficiency
Health-based
Groundwater Rule
September 11, 2025
Unaddressed
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
October 1, 2024 – October 31, 2024
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2024 – August 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2022 – December 31, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – August 31, 2021
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
July 1, 2015 – September 30, 2015
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 2015 – September 30, 2015
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 10, 2013 – September 3, 2013
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2013 – July 31, 2013
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 11, 2012 – September 19, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
June 1, 2012 – June 30, 2012
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
May 1, 2012 – May 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2012 – June 29, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 11, 2011 – December 29, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2010 – October 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2010 – September 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2010 – September 30, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2008 – August 22, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 11, 2008 – July 21, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – September 19, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2007 – March 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2006 – September 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2006 – March 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – October 20, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2005 – March 17, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2004 – December 31, 2004
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2004 – January 31, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – December 27, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2004 – September 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2004 – June 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2004 – March 31, 2004
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Barium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Chromium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Mercury
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Nickel
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Selenium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1984 – June 30, 1988
Archived
Monitoring, Regular
—
Cadmium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Nitrate
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Selenium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4-D
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
2,4,5-TP
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Chromium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Fluoride
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Mercury
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Arsenic
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Barium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
January 11, 2026 – February 19, 2026	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2026 – January 31, 2026	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring, Regular	Radium-228	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Radium-226	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
September 11, 2025	Failure To Address Deficiency	Groundwater Rule	Health-based	Unaddressed
October 1, 2024 – October 31, 2024	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
August 1, 2024 – August 31, 2024	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2021 – August 31, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
September 10, 2013 – September 3, 2013	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 1, 2013 – September 30, 2013	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2013 – July 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 11, 2012 – September 19, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2012 – August 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2012 – June 30, 2012	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
May 1, 2012 – May 31, 2012	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2012 – June 29, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 11, 2011 – December 29, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2010 – October 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2010 – September 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 11, 2008 – August 22, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 11, 2008 – July 21, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2007 – September 19, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2005 – October 20, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2005 – March 17, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – January 31, 2005	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – December 27, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Barium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Chromium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Mercury	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nickel	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Selenium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Beryllium, Total	—	Resolved
July 1, 1984 – June 30, 1988	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Cadmium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Methoxychlor	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Nitrate	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Toxaphene	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Selenium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4-D	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4,5-TP	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Chromium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	BHC-GAMMA	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Fluoride	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Mercury	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Arsenic	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Barium	—	Archived
July 1, 1980 – June 30, 1984	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

March 12, 2026State Compliance achieved1 linked violation
March 11, 2026State Formal Notice of Violation issued1 linked violation
February 19, 2026State Compliance achieved1 linked violation
February 19, 2026State Violation/Reminder Notice1 linked violation
February 11, 2026State Public Notification requested3 linked violations
February 11, 2026State Formal Notice of Violation issued3 linked violations
December 12, 2025State Public Notification received1 linked violation
December 3, 2025State Public Notification requested1 linked violation
December 3, 2025State Formal Notice of Violation issued1 linked violation
February 13, 2025State Compliance achieved1 linked violation
February 12, 2025State Public Notification requested1 linked violation
February 12, 2025State Formal Notice of Violation issued1 linked violation
December 10, 2024State Formal Notice of Violation issued1 linked violation
December 10, 2024State Compliance achieved1 linked violation
November 21, 2024State Compliance achieved2 linked violations
November 12, 2024State Formal Notice of Violation issued2 linked violations
November 12, 2024State Public Notification requested2 linked violations
October 10, 2024State Public Notification requested1 linked violation
October 10, 2024State Formal Notice of Violation issued1 linked violation
October 10, 2024State Compliance achieved1 linked violation
April 13, 2023State Compliance achieved2 linked violations
February 9, 2023State Violation/Reminder Notice2 linked violations
August 31, 2021State Compliance achieved1 linked violation
August 31, 2021State Violation/Reminder Notice1 linked violation
November 16, 2015State Compliance achieved2 linked violations
November 16, 2015State Public Notification requested2 linked violations
November 16, 2015State Violation/Reminder Notice2 linked violations
April 22, 2014State Public Notification received1 linked violation
January 27, 2014State Violation/Reminder Notice1 linked violation
January 27, 2014State Compliance achieved1 linked violation
January 27, 2014State Public Notification requested1 linked violation
October 31, 2013State Violation/Reminder Notice2 linked violations
October 31, 2013State Compliance achieved2 linked violations
October 31, 2013State Public Notification received1 linked violation
October 31, 2013State Public Notification requested2 linked violations
October 9, 2013State Public Notification received1 linked violation
September 3, 2013State Violation/Reminder Notice2 linked violations
September 3, 2013State Compliance achieved2 linked violations
September 3, 2013State Compliance achieved2 linked violations
September 3, 2013State Public Notification requested1 linked violation
September 3, 2013State Public Notification requested1 linked violation
September 3, 2013State Violation/Reminder Notice2 linked violations
September 19, 2012State Violation/Reminder Notice1 linked violation
September 19, 2012State Violation/Reminder Notice2 linked violations
September 19, 2012State Compliance achieved1 linked violation
September 19, 2012State Compliance achieved2 linked violations
August 21, 2012State Public Notification received2 linked violations
July 20, 2012State Public Notification requested2 linked violations
July 20, 2012State Violation/Reminder Notice2 linked violations
July 20, 2012State Compliance achieved2 linked violations
June 29, 2012State Violation/Reminder Notice1 linked violation
June 29, 2012State Compliance achieved1 linked violation
June 29, 2012State Violation/Reminder Notice2 linked violations
June 29, 2012State Public Notification requested1 linked violation
June 29, 2012State Compliance achieved2 linked violations
December 29, 2011State Compliance achieved2 linked violations
December 29, 2011State Violation/Reminder Notice2 linked violations
November 28, 2011State Public Notification requested1 linked violation
November 28, 2011State Violation/Reminder Notice1 linked violation
November 28, 2011State Compliance achieved1 linked violation
June 23, 2011State Violation/Reminder Notice1 linked violation
June 23, 2011State Compliance achieved1 linked violation
November 24, 2010State Public Notification requested2 linked violations
November 24, 2010State Compliance achieved2 linked violations
November 24, 2010State Violation/Reminder Notice2 linked violations
November 9, 2010State Violation/Reminder Notice2 linked violations
November 9, 2010State Compliance achieved2 linked violations
August 22, 2008State Compliance achieved1 linked violation
August 22, 2008State Violation/Reminder Notice1 linked violation
July 21, 2008State Compliance achieved1 linked violation
July 21, 2008State Public Notification received1 linked violation
July 21, 2008State Violation/Reminder Notice1 linked violation
February 7, 2008State Compliance achieved2 linked violations
February 7, 2008State Violation/Reminder Notice2 linked violations
September 19, 2007State Compliance achieved1 linked violation
August 22, 2007State Violation/Reminder Notice2 linked violations
August 22, 2007State Compliance achieved2 linked violations
August 22, 2007State Public Notification requested2 linked violations
May 31, 2007State Compliance achieved2 linked violations
May 31, 2007State Violation/Reminder Notice2 linked violations
October 20, 2005State Compliance achieved1 linked violation
October 20, 2005State Consent Decree/Judgement1 linked violation
September 29, 2005State Violation/Reminder Notice1 linked violation
September 29, 2005State Violation/Reminder Notice1 linked violation
March 17, 2005State Compliance achieved1 linked violation
March 17, 2005State Violation/Reminder Notice1 linked violation
February 16, 2005State Compliance achieved1 linked violation
February 16, 2005State Violation/Reminder Notice1 linked violation
February 14, 2005State Compliance achieved3 linked violations
February 14, 2005State Formal Notice of Violation issued3 linked violations
January 31, 2005State Formal Notice of Violation issued1 linked violation
January 31, 2005State Compliance achieved1 linked violation
January 31, 2005State Consent Decree/Judgement1 linked violation
December 27, 2004State Compliance achieved1 linked violation
December 27, 2004State Consent Decree/Judgement1 linked violation
October 27, 2004State Formal Notice of Violation issued1 linked violation
October 13, 1988State Site Visit for enforcement purposes1 linked violation
November 14, 1985State Violation/Reminder Notice6 linked violations
November 5, 1985State Violation/Reminder Notice1 linked violation
June 25, 1985State Compliance achieved6 linked violations
May 22, 1984State Violation/Reminder Notice1 linked violation

Contact

LAKE ARTHUR ESTATES

724-368-8875

PORTERSVILLE, PA 16051