MCALESTER, OK · Pittsburg County

MCALESTER PWA 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 Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID): OK1020609
System type: Community Water System
Population served: 18,206
Service connections: 7,545
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2025 – December 31, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2025 – March 31, 2025
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2025 – February 28, 2025
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2025 – January 31, 2025
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2024 – July 31, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2024 – July 31, 2024
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2023 – September 30, 2023
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2023 – June 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2023 – June 30, 2023
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2023 – March 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2023 – March 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2022 – December 31, 2022
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2022 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2022 – September 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2022 – March 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2021 – December 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2020 – December 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2020 – June 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2020 – June 30, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2020 – March 31, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2020 – February 29, 2020
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2020 – February 29, 2020
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2019 – September 30, 2019
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2019 – June 30, 2019
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2018 – September 30, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2018 – August 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2018 – September 30, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2018 – July 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2018 – July 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2018 – March 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Bromate
October 1, 2017 – December 31, 2017
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2017 – December 31, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Bromate
July 1, 2017 – September 30, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2017 – March 31, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2017 – February 28, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2016 – March 31, 2016
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
January 1, 2016 – January 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2015 – October 31, 2015
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2015 – October 31, 2015
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2015 – July 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2015 – February 28, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2015 – February 28, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2012 – June 30, 2012
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2012 – March 31, 2012
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2011 – September 30, 2011
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2011 – September 30, 2011
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2011 – June 30, 2011
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2011 – April 30, 2011
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2011 – February 28, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2010 – September 30, 2010
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2010 – June 30, 2010
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2010 – February 28, 2010
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
January 1, 2010 – January 31, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2009 – September 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
May 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
May 1, 2009 – June 30, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2009 – March 31, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2008 – June 30, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2007 – June 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2007 – March 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2006 – September 30, 2006
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Simazine
January 1, 2005 – December 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2004 – December 31, 2004
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2004 – March 31, 2004
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2003 – December 31, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2003 – September 30, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2003 – June 30, 2003
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2002 – July 31, 2002
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 2002 – February 28, 2002
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2000 – August 31, 2000
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2000 – July 31, 2000
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1999 – October 31, 1999
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1999 – April 30, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1998 – September 30, 1998
Resolved

Archived 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 – December 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2025 – October 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
March 1, 2025 – March 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
February 1, 2025 – February 28, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2025 – January 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 17, 2024 – July 15, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
October 17, 2024 – July 15, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
July 1, 2024 – July 31, 2024	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2024 – July 31, 2024	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2023 – September 30, 2023	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
June 1, 2023 – June 30, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2023 – June 30, 2023	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2023 – March 31, 2023	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2022 – December 31, 2022	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2021 – December 31, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
March 1, 2020 – March 31, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2020 – February 29, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2020 – February 29, 2020	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2019 – September 30, 2019	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 2019 – June 30, 2019	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
September 1, 2018 – September 30, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 2018 – August 31, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2018 – September 30, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2018 – July 31, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2018 – July 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Bromate	—	Archived
October 1, 2017 – December 31, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
August 1, 2017 – August 31, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	Bromate	—	Resolved
March 1, 2017 – March 31, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2017 – February 28, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2016 – March 31, 2016	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2016 – January 31, 2016	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – October 31, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2015 – October 31, 2015	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2015 – September 30, 2015	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2015 – July 31, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2015 – February 28, 2015	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2015 – February 28, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2012 – June 30, 2012	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2012 – March 31, 2012	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
December 1, 2011 – December 31, 2011	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2011 – September 30, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
June 1, 2011 – June 30, 2011	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2011 – April 30, 2011	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2011 – February 28, 2011	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 1, 2010 – June 30, 2010	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2010 – February 28, 2010	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2010 – January 31, 2010	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2009 – September 30, 2009	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
May 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
May 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2009 – March 31, 2009	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – December 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2008 – September 30, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2008 – June 30, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2008 – March 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2007 – December 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2007 – July 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2007 – June 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2007 – March 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2006 – December 31, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2006 – September 30, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Simazine	—	Resolved
October 1, 2004 – December 31, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2004 – March 31, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2003 – December 31, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2003 – September 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2003 – June 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2002 – July 31, 2002	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2002 – February 28, 2002	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 2000 – August 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2000 – July 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 1999 – October 31, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 1999 – April 30, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

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

Enforcement actions

December 31, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 31, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 12, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
November 12, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 12, 2025State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
October 7, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 7, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 7, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 15, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 15, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 11, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 11, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 3, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 3, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 21, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 6, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 9, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 9, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 6, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 17, 2024State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
November 15, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 11, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 18, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 2, 2023State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
June 26, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 26, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 16, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 22, 2022State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 7, 2022State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 24, 2022State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 17, 2022State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 20, 2021State Administrative/Compliance Order with penalty issuedgeneral compliance action — not tied to a specific violation on record
April 16, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 12, 2021State Administrative/Compliance Order without penalty issued210 linked violations
March 10, 2021State Compliance achieved11 linked violations
January 21, 2021State Compliance achieved27 linked violations
January 11, 2021State Public Notification received6 linked violations
December 18, 2020State Compliance achieved3 linked violations
December 8, 2020State Administrative/Compliance Order without penalty issued6 linked violations
October 23, 2020State Violation/Reminder Notice3 linked violations
September 18, 2020State Administrative/Compliance Order without penalty issued8 linked violations
June 12, 2020State Public Notification requested7 linked violations
December 9, 2019State Administrative/Compliance Order without penalty issued4 linked violations
November 26, 2019State Public Notification received3 linked violations
November 26, 2019State Public Notification received4 linked violations
October 11, 2019State Compliance achieved57 linked violations
March 25, 2019State Compliance achieved4 linked violations
November 19, 2018State Administrative/Compliance Order without penalty issued3 linked violations
November 5, 2018State Public Notification received2 linked violations
September 17, 2018State Administrative/Compliance Order without penalty issued4 linked violations
September 14, 2018State Violation/Reminder Notice3 linked violations
September 14, 2018State Violation/Reminder Notice2 linked violations
September 4, 2018State Public Notification requested2 linked violations
September 4, 2018State Administrative/Compliance Order without penalty issued1 linked violation
July 5, 2018State Compliance achieved5 linked violations
April 23, 2018State Public Notification requested3 linked violations
February 28, 2018State Compliance achieved2 linked violations
February 28, 2018State Compliance achieved1 linked violation
February 16, 2018State Compliance achieved2 linked violations
February 16, 2018State Compliance achieved2 linked violations
December 14, 2017State Violation/Reminder Notice2 linked violations
November 9, 2017State Public Notification received2 linked violations
October 17, 2017State Public Notification requested2 linked violations
September 28, 2017State Administrative/Compliance Order without penalty issued3 linked violations
September 21, 2017State Public Notification received3 linked violations
August 4, 2017State Public Notification requested3 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved11 linked violations
July 26, 2016State Compliance achieved13 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved4 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved4 linked violations
July 26, 2016State Compliance achieved7 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved4 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 8, 2016State Public Notification received2 linked violations
May 26, 2016State Administrative/Compliance Order with penalty issued1 linked violation
May 26, 2016State Public Notification requested1 linked violation
May 2, 2016State Public Notification received2 linked violations
March 25, 2016State Compliance achieved2 linked violations
March 24, 2016State Compliance achieved1 linked violation
March 24, 2016State Public Notification received1 linked violation
March 16, 2016State Public Notification received2 linked violations
March 15, 2016State Administrative/Compliance Order with penalty issued1 linked violation
March 15, 2016State Public Notification requested1 linked violation
March 14, 2016State Administrative/Compliance Order with penalty issued2 linked violations
March 14, 2016State Public Notification requested2 linked violations
February 11, 2016State Administrative/Compliance Order with penalty issued2 linked violations
February 11, 2016State Public Notification requested2 linked violations
January 6, 2016State Public Notification received2 linked violations
December 8, 2015State Administrative/Compliance Order with penalty issued2 linked violations
December 8, 2015State Public Notification requested2 linked violations
September 15, 2015State Public Notification received1 linked violation
July 31, 2015State Compliance achieved1 linked violation
July 21, 2015State Public Notification requested1 linked violation
July 21, 2015State Violation/Reminder Notice1 linked violation
July 9, 2015State Public Notification received1 linked violation
June 17, 2015State Intentional no-action35 linked violations
June 12, 2015State Administrative/Compliance Order with penalty issued1 linked violation
June 12, 2015State Public Notification requested1 linked violation
June 9, 2015State Compliance achieved1 linked violation
May 21, 2015State Public Notification received2 linked violations
May 21, 2015State Compliance achieved2 linked violations
April 20, 2015State Public Notification received1 linked violation
April 14, 2015State Administrative/Compliance Order with penalty issued2 linked violations
April 14, 2015State Public Notification requested1 linked violation
April 14, 2015State Public Notification requested1 linked violation
March 16, 2015State Administrative/Compliance Order with penalty issued1 linked violation
March 16, 2015State Public Notification requested1 linked violation
March 5, 2015State Compliance achieved2 linked violations
March 5, 2015State Public Notification received2 linked violations
February 13, 2015State Public Notification requested2 linked violations
December 17, 2014State Public Notification received1 linked violation
November 14, 2014State Administrative/Compliance Order with penalty issued1 linked violation
November 14, 2014State Public Notification requested1 linked violation
September 22, 2014State Public Notification received1 linked violation
August 28, 2014State Public Notification requested1 linked violation
August 28, 2014State Administrative/Compliance Order with penalty issued1 linked violation
June 9, 2014State Public Notification received2 linked violations
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 7, 2014State Administrative/Compliance Order with penalty issued2 linked violations
May 7, 2014State Public Notification requested2 linked violations
December 17, 2013State Public Notification received1 linked violation
December 11, 2013State Compliance achieved1 linked violation
November 1, 2013State Violation/Reminder Notice1 linked violation
November 1, 2013State Public Notification requested1 linked violation
August 30, 2011State Administrative/Compliance Order with penalty issued2 linked violations
August 30, 2011State Public Notification requested2 linked violations
August 18, 2011State Public Notification received2 linked violations
July 11, 2011State Violation/Reminder Notice7 linked violations
June 30, 2011State Public Notification requested8 linked violations
May 11, 2011State Public Notification received1 linked violation
April 12, 2011State Public Notification requested1 linked violation
April 12, 2011State Violation/Reminder Notice1 linked violation
April 7, 2011State Site Visit for enforcement purposes6 linked violations
March 21, 2011State Public Notification received1 linked violation
February 11, 2011State Public Notification received2 linked violations
January 12, 2011State Violation/Reminder Notice1 linked violation
January 12, 2011State Public Notification requested1 linked violation
December 22, 2010State Public Notification requested2 linked violations
December 22, 2010State Administrative/Compliance Order with penalty issued2 linked violations
November 30, 2010State Public Notification received1 linked violation
October 27, 2010State Public Notification received9 linked violations
October 12, 2010State Public Notification requested1 linked violation
October 12, 2010State Violation/Reminder Notice1 linked violation
September 24, 2010State Public Notification received1 linked violation
September 9, 2010State Administrative/Compliance Order with penalty issued9 linked violations
September 9, 2010State Public Notification requested9 linked violations
August 6, 2010State Violation/Reminder Notice1 linked violation
August 6, 2010State Public Notification requested1 linked violation
May 11, 2010State Violation/Reminder Notice58 linked violations
February 25, 2010State Public Notification received1 linked violation
January 7, 2010State Violation/Reminder Notice1 linked violation
January 7, 2010State Public Notification requested1 linked violation
December 11, 2009State Public Notification received1 linked violation
October 22, 2009State Violation/Reminder Notice1 linked violation
October 22, 2009State Public Notification requested1 linked violation
August 31, 2009State Public Notification received2 linked violations
July 30, 2009State Violation/Reminder Notice2 linked violations
July 30, 2009State Public Notification requested2 linked violations
June 10, 2009State Public Notification received2 linked violations
June 9, 2009State Compliance achieved1 linked violation
April 28, 2009State Public Notification requested2 linked violations
April 28, 2009State Violation/Reminder Notice2 linked violations
March 20, 2009State Public Notification received2 linked violations
February 27, 2009State Compliance achieved1 linked violation
February 9, 2009State Public Notification received1 linked violation
January 30, 2009State Public Notification requested2 linked violations
January 30, 2009State Violation/Reminder Notice2 linked violations
December 10, 2008State Violation/Reminder Notice1 linked violation
December 5, 2008State Public Notification received2 linked violations
November 3, 2008State Violation/Reminder Notice2 linked violations
November 3, 2008State Public Notification requested2 linked violations
September 2, 2008State Public Notification received4 linked violations
August 29, 2008State Public Notification requested1 linked violation
August 29, 2008State Administrative/Compliance Order with penalty issued1 linked violation
August 1, 2008State Violation/Reminder Notice2 linked violations
August 1, 2008State Public Notification requested2 linked violations
February 20, 2008State Public Notification received2 linked violations
February 20, 2008State Public Notification received2 linked violations
January 29, 2008State Public Notification requested2 linked violations
January 29, 2008State Violation/Reminder Notice2 linked violations
January 7, 2008State Violation/Reminder Notice2 linked violations
January 7, 2008State Public Notification requested2 linked violations
January 4, 2008State Public Notification received2 linked violations
December 21, 2007State Administrative/Compliance Order with penalty issued2 linked violations
December 21, 2007State Public Notification requested2 linked violations
October 25, 2007State Public Notification received1 linked violation
October 25, 2007State Compliance achieved2 linked violations
September 26, 2007State Violation/Reminder Notice1 linked violation
September 26, 2007State Public Notification requested1 linked violation
September 21, 2007State Public Notification received1 linked violation
September 10, 2007State Public Notification received1 linked violation
September 7, 2007State Administrative/Compliance Order with penalty issued58 linked violations
August 22, 2007State Violation/Reminder Notice1 linked violation
August 22, 2007State Public Notification requested1 linked violation
July 12, 2007State Administrative/Compliance Order with penalty issued1 linked violation
July 12, 2007State Public Notification requested1 linked violation
June 29, 2007State Public Notification received2 linked violations
May 24, 2007State Public Notification requested2 linked violations
May 24, 2007State Administrative/Compliance Order with penalty issued2 linked violations
March 22, 2007State Public Notification received2 linked violations
February 7, 2007State Public Notification requested2 linked violations
February 7, 2007State Administrative/Compliance Order with penalty issued2 linked violations
February 6, 2007State Violation/Reminder Notice1 linked violation
January 25, 2007State Public Notification received2 linked violations
January 3, 2007State Administrative/Compliance Order without penalty issued25 linked violations
December 8, 2006State Public Notification requested2 linked violations
December 8, 2006State Administrative/Compliance Order with penalty issued3 linked violations
December 8, 2006State Administrative/Compliance Order with penalty issued1 linked violation
November 7, 2005State Compliance achieved46 linked violations
September 20, 2004State Administrative/Compliance Order with penalty issued23 linked violations
March 22, 2004State Public Notification received2 linked violations
March 3, 2004State Administrative/Compliance Order with penalty issued1 linked violation
February 11, 2004State Public Notification requested3 linked violations
December 18, 2003State Site Visit for enforcement purposes2 linked violations
December 17, 2003State Public Notification received3 linked violations
November 13, 2003State Administrative/Compliance Order with penalty issued4 linked violations
August 12, 2003State Administrative/Compliance Order with penalty issued3 linked violations
July 8, 2003State Administrative/Compliance Order with penalty issued2 linked violations
July 8, 2003State Public Notification requested2 linked violations
May 8, 2003State Administrative/Compliance Order with penalty issued3 linked violations
January 22, 2003State Administrative/Compliance Order with penalty issued1 linked violation
July 15, 2002State Administrative/Compliance Order with penalty issued4 linked violations
June 11, 2002State Administrative/Compliance Order with penalty issuedgeneral compliance action — not tied to a specific violation on record
March 15, 2002State Administrative/Compliance Order with penalty issued2 linked violations
March 7, 2002State Boil Water Order1 linked violation
April 9, 2001State Administrative/Compliance Order with penalty issued5 linked violations
November 8, 2000State Administrative/Compliance Order with penalty issued1 linked violation
November 1, 2000State Administrative/Compliance Order with penalty issued1 linked violation
March 10, 1998State Compliance achieved1 linked violation

Contact

MCALESTER PWA

918-423-9300

MCALESTER, OK 74501