Is COWETA PWA required to publish a Consumer Confidence Report?

Yes. COWETA PWA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is COWETA PWA’s next Consumer Confidence Report due?

COWETA PWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

COWETA, OK · Wagoner County

COWETA PWA Water System

Consumer Confidence Report status

COWETA PWA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 item for COWETA PWA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): OK1021509
System type: Community Water System
Population served: 9,450
Service connections: 6,123
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

COWETA PWA is one of 106 community water systems in Oklahoma in the 3,301 to 10,000 people size category, serving 9,450 people from surface water.

As of August 1, 2026, its federal record holds 120 entries between 1991 and 2025, of which 1 remains open; none are health-based.

Of the 120, 41 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 1 Disinfectants and Disinfection Byproducts Rule, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and volatile organic chemicals.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2025 – June 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2025 – March 31, 2025
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2024 – March 13, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2024 – September 30, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2024 – September 30, 2024
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – May 20, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2024 – September 30, 2024
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
March 31, 2024 – June 5, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2024 – March 31, 2024
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2023 – June 5, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 2023 – November 30, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2023 – November 30, 2023
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2023 – December 31, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2023 – December 31, 2023
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
June 30, 2023 – June 5, 2024
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2020 – December 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2020 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Uranium
January 1, 2020 – December 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2019 – June 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2014 – September 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2012 – September 30, 2012
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2012 – March 31, 2012
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2011 – December 31, 2011
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2011 – September 30, 2011
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2011 – March 31, 2011
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2010 – June 30, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2009 – December 31, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2009 – September 30, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Styrene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Toluene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Benzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2008 – December 31, 2008
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
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2008 – May 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2007 – September 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2007 – September 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
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2007 – March 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2006 – December 31, 2006
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2006 – December 31, 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
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2005 – March 31, 2005
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1998 – January 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1991 – February 28, 1991
Resolved

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
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 30, 2024 – March 13, 2025	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
October 17, 2024 – July 15, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 17, 2024 – July 15, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
July 1, 2024 – May 20, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
March 31, 2024 – June 5, 2024	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
March 1, 2024 – March 31, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 30, 2023 – June 5, 2024	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
November 1, 2023 – November 30, 2023	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
November 1, 2023 – November 30, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2023 – October 31, 2023	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2023 – October 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2023 – September 30, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2023 – September 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
June 30, 2023 – June 5, 2024	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2023 – December 31, 2023	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2020 – December 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2020 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
January 1, 2020 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Archived
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2012 – June 30, 2012	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2011 – December 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2011 – September 30, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2011 – March 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2010 – December 31, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2010 – June 30, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2009 – December 31, 2009	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Styrene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Toluene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Benzene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	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	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2008 – September 30, 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
May 1, 2008 – May 31, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2008 – June 30, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2007 – September 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
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
March 1, 2007 – March 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2007 – March 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2006 – December 31, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	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
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 1998 – January 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
February 1, 1991 – February 28, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

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

February 19, 2026State Public Notification requested25 linked violations
February 19, 2026State Violation/Reminder Notice25 linked violations
January 9, 2026State Administrative/Compliance Order with penalty issued29 linked violations
January 7, 2026State Compliance achieved1 linked violation
January 7, 2026State Compliance achieved1 linked violation
January 7, 2026State Compliance achieved1 linked violation
December 17, 2025State Public Notification received4 linked violations
December 17, 2025State Public Notification received2 linked violations
December 17, 2025State Public Notification received2 linked violations
November 21, 2025State Violation/Reminder Notice1 linked violation
November 21, 2025State Public Notification requested1 linked violation
November 12, 2025State Public Notification requested4 linked violations
November 12, 2025State Administrative/Compliance Order without penalty issued4 linked violations
November 3, 2025State Compliance achieved1 linked violation
November 3, 2025State Compliance achieved1 linked violation
September 16, 2025State Public Notification received4 linked violations
August 7, 2025State Administrative/Compliance Order without penalty issued4 linked violations
August 7, 2025State Public Notification requested4 linked violations
August 5, 2025State Compliance achieved1 linked violation
August 5, 2025State Compliance achieved1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 15, 2025State Compliance achieved1 linked violation
July 15, 2025State Compliance achieved1 linked violation
July 11, 2025State Violation/Reminder Notice1 linked violation
July 11, 2025State Violation/Reminder Notice1 linked violation
June 9, 2025State Public Notification received4 linked violations
May 27, 2025State Public Notification received1 linked violation
May 27, 2025State Public Notification received3 linked violations
May 27, 2025State Public Notification received1 linked violation
May 27, 2025State Public Notification received2 linked violations
May 27, 2025State Public Notification received1 linked violation
May 27, 2025State Public Notification received1 linked violation
May 20, 2025State Compliance achieved1 linked violation
May 8, 2025State Public Notification requested4 linked violations
May 8, 2025State Administrative/Compliance Order without penalty issued4 linked violations
April 11, 2025State Public Notification received4 linked violations
March 13, 2025State Compliance achieved1 linked violation
March 13, 2025State Compliance achieved1 linked violation
March 7, 2025State Administrative/Compliance Order without penalty issued4 linked violations
March 7, 2025State Public Notification requested4 linked violations
March 6, 2025State Public Notification requested3 linked violations
March 6, 2025State Violation/Reminder Notice3 linked violations
February 27, 2025State Violation/Reminder Notice1 linked violation
February 27, 2025State Violation/Reminder Notice1 linked violation
December 13, 2024State Public Notification received4 linked violations
October 31, 2024State Administrative/Compliance Order without penalty issued4 linked violations
October 31, 2024State Public Notification requested4 linked violations
October 9, 2024State Public Notification requested1 linked violation
October 9, 2024State Administrative/Compliance Order without penalty issued1 linked violation
September 5, 2024State Public Notification received2 linked violations
July 31, 2024State Administrative/Compliance Order without penalty issued2 linked violations
July 31, 2024State Public Notification requested2 linked violations
July 12, 2024State Violation/Reminder Notice1 linked violation
July 1, 2024State Compliance achieved1 linked violation
June 5, 2024State Compliance achieved1 linked violation
June 5, 2024State Compliance achieved1 linked violation
June 5, 2024State Compliance achieved1 linked violation
June 5, 2024State Compliance achieved1 linked violation
May 21, 2024State Violation/Reminder Notice1 linked violation
May 15, 2024State Violation/Reminder Notice1 linked violation
May 15, 2024State Public Notification requested4 linked violations
May 3, 2024State Public Notification requested2 linked violations
May 3, 2024State Administrative/Compliance Order without penalty issued3 linked violations
April 24, 2024State Compliance achieved4 linked violations
March 15, 2024State Violation/Reminder Notice1 linked violation
March 15, 2024State Violation/Reminder Notice2 linked violations
February 28, 2024State Violation/Reminder Notice5 linked violations
February 28, 2024State Public Notification requested4 linked violations
February 20, 2024State Public Notification requested4 linked violations
February 8, 2024State Administrative/Compliance Order without penalty issued10 linked violations
February 5, 2024State Compliance achieved1 linked violation
February 5, 2024State Compliance achieved1 linked violation
January 23, 2024State Violation/Reminder Notice1 linked violation
January 23, 2024State Public Notification requested1 linked violation
January 18, 2024State Public Notification requested1 linked violation
January 18, 2024State Violation/Reminder Notice1 linked violation
January 15, 2024State Public Notification received1 linked violation
January 4, 2024State Administrative/Compliance Order without penalty issued1 linked violation
January 4, 2024State Public Notification requested1 linked violation
December 5, 2023State Compliance achieved1 linked violation
December 5, 2023State Compliance achieved1 linked violation
December 4, 2023State Public Notification received2 linked violations
November 30, 2023State Public Notification requested1 linked violation
November 30, 2023State Public Notification requested1 linked violation
November 30, 2023State Violation/Reminder Notice1 linked violation
November 30, 2023State Violation/Reminder Notice1 linked violation
November 15, 2023State Public Notification requested2 linked violations
November 15, 2023State Administrative/Compliance Order without penalty issued2 linked violations
November 15, 2023State Public Notification requested2 linked violations
November 15, 2023State Administrative/Compliance Order without penalty issued2 linked violations
August 25, 2023State Violation/Reminder Notice1 linked violation
April 20, 2022State Public Notification received1 linked violation
November 3, 2021State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 10, 2021State Compliance achieved1 linked violation
April 20, 2021State Public Notification requested1 linked violation
April 20, 2021State Violation/Reminder Notice1 linked violation
November 10, 2020State Compliance achieved1 linked violation
November 10, 2020State Compliance achieved1 linked violation
October 23, 2020State Violation/Reminder Notice1 linked violation
October 23, 2020State Violation/Reminder Notice1 linked violation
July 9, 2020State Compliance achieved8 linked violations
May 8, 2020State Administrative/Compliance Order without penalty issued4 linked violations
May 8, 2020State Public Notification requested4 linked violations
March 5, 2020State Public Notification received2 linked violations
February 4, 2020State Administrative/Compliance Order without penalty issued3 linked violations
November 5, 2019State Administrative/Compliance Order without penalty issued3 linked violations
October 29, 2019State Public Notification received1 linked violation
October 29, 2019State Public Notification received1 linked violation
July 18, 2019State Public Notification requested2 linked violations
July 18, 2019State Public Notification requested2 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved5 linked violations
July 26, 2016State Compliance achieved4 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 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 achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 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 achieved3 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved5 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved44 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved27 linked violations
July 26, 2016State Compliance achieved28 linked violations
July 26, 2016State Compliance achieved28 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved6 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved3 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved2 linked violations
July 26, 2016State Compliance achieved1 linked violation
February 23, 2015State Compliance achieved3 linked violations
December 5, 2014State Public Notification received3 linked violations
November 4, 2014State Public Notification requested3 linked violations
April 2, 2013State Public Notification requested2 linked violations
February 14, 2013State Public Notification received3 linked violations
January 8, 2013State Public Notification requested3 linked violations
November 19, 2012State Public Notification received5 linked violations
October 15, 2012State Public Notification requested7 linked violations
July 10, 2012State Violation/Reminder Notice9 linked violations
April 23, 2012State Public Notification requested8 linked violations
January 9, 2012State Violation/Reminder Notice5 linked violations
January 9, 2012State Public Notification requested5 linked violations
November 18, 2011State Public Notification received5 linked violations
October 13, 2011State Public Notification requested5 linked violations
August 8, 2011State Public Notification received3 linked violations
June 30, 2011State Compliance achieved5 linked violations
April 27, 2011State Violation/Reminder Notice4 linked violations
March 2, 2011State Violation/Reminder Notice6 linked violations
January 27, 2011State Public Notification requested6 linked violations
October 15, 2010State Public Notification requested7 linked violations
October 15, 2010State Violation/Reminder Notice4 linked violations
August 5, 2010State Compliance achieved23 linked violations
May 3, 2010State Administrative/Compliance Order with penalty issued6 linked violations
January 27, 2010State Public Notification requested4 linked violations
September 8, 2009State Public Notification received23 linked violations
August 7, 2009State Public Notification requested5 linked violations
June 30, 2009State Violation/Reminder Notice20 linked violations
March 3, 2009State Public Notification received6 linked violations
January 27, 2009State Administrative/Compliance Order with penalty issued5 linked violations
December 5, 2008State Public Notification received8 linked violations
November 5, 2008State Administrative/Compliance Order with penalty issued5 linked violations
September 25, 2008State Public Notification received9 linked violations
August 28, 2008State Administrative/Compliance Order with penalty issued7 linked violations
August 28, 2008State Public Notification requested7 linked violations
July 28, 2008State Administrative/Compliance Order with penalty issued3 linked violations
April 22, 2008State Public Notification received5 linked violations
March 18, 2008State Public Notification requested6 linked violations
January 15, 2008State Administrative/Compliance Order with penalty issued5 linked violations
January 9, 2008State Public Notification requested5 linked violations
June 27, 2007State Public Notification received3 linked violations
May 31, 2007State Public Notification requested5 linked violations
March 12, 2007State Public Notification received5 linked violations
February 20, 2007State Administrative/Compliance Order with penalty issued7 linked violations
February 20, 2007State Public Notification requested6 linked violations
November 7, 2006State Administrative/Compliance Order with penalty issued7 linked violations
November 7, 2006State Public Notification requested8 linked violations
October 23, 2006State Public Notification received7 linked violations
October 6, 2006State Public Notification received3 linked violations
September 26, 2006State Administrative/Compliance Order with penalty issued6 linked violations
September 7, 2006State Administrative/Compliance Order with penalty issued5 linked violations
May 12, 2006State Public Notification received6 linked violations
February 24, 2006State Public Notification received3 linked violations
January 26, 2006State Administrative/Compliance Order with penalty issued8 linked violations

Common questions

Is COWETA PWA required to publish a Consumer Confidence Report?: Yes. COWETA PWA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is COWETA PWA’s next Consumer Confidence Report due?: COWETA PWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COWETA PWA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for COWETA PWA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

COWETA

918-486-8073

COWETA, OK 74429