Is TISHOMINGO MUNICIPAL AUTHORITY required to publish a Consumer Confidence Report?

Yes. TISHOMINGO MUNICIPAL AUTHORITY 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 TISHOMINGO MUNICIPAL AUTHORITY’s next Consumer Confidence Report due?

TISHOMINGO MUNICIPAL AUTHORITY’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.

TISHOMINGO, OK · Johnston County

TISHOMINGO MUNICIPAL AUTHORITY Water System

Consumer Confidence Report status

TISHOMINGO MUNICIPAL AUTHORITY 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 no open violations for TISHOMINGO MUNICIPAL AUTHORITY.

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): OK1010815
System type: Community Water System
Population served: 3,000
Service connections: 1,219
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

TISHOMINGO MUNICIPAL AUTHORITY is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 3,000 people from surface water.

As of August 1, 2026, its federal record holds 30 entries between 1994 and 2025, all of which EPA lists as closed.

Of the 30, 11 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 Surface Water Treatment Rules, and the Total Coliform Rules.

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2025 – November 30, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – August 29, 2025
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Long Term 2 Enhanced Surface Water Treatment Rule
March 1, 2025 – March 31, 2025
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 2025 – January 31, 2025
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2025 – July 29, 2025
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Long Term 2 Enhanced Surface Water Treatment Rule
January 1, 2025 – January 31, 2025
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 2025 – January 31, 2025
Archived
Treatment Technique (SWTR and GWR)
Health-based
Long Term 2 Enhanced Surface Water Treatment Rule
November 1, 2024 – November 30, 2024
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 2024 – June 30, 2024
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2024 – June 30, 2024
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2022 – March 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2021 – November 30, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2021 – March 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2014 – September 30, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 23, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2013 – September 30, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2013 – September 30, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2012 – December 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2012 – June 30, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2009 – March 31, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – March 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1996 – December 31, 1996
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1995 – May 31, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2025 – November 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2025 – August 29, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 1, 2025 – March 31, 2025	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Health-based	Archived
January 1, 2025 – January 31, 2025	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 2025 – July 29, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2025 – January 31, 2025	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Health-based	Archived
January 1, 2025 – January 31, 2025	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 2024 – November 30, 2024	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Health-based	Archived
June 1, 2024 – June 30, 2024	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 2024 – June 30, 2024	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2022 – March 31, 2022	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2021 – November 30, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
March 1, 2021 – March 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2013 – December 31, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
September 1, 2013 – September 23, 2013	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2013 – September 30, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2012 – December 31, 2012	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2012 – June 30, 2012	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2008 – December 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2007 – January 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 1, 1996 – December 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1995 – May 31, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 1994 – September 30, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

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

Enforcement actions

March 5, 2026State Compliance achieved1 linked violation
March 5, 2026State Compliance achieved1 linked violation
January 27, 2026State Public Notification requested2 linked violations
January 27, 2026State Violation/Reminder Notice2 linked violations
September 17, 2025State Compliance achieved1 linked violation
September 4, 2025State Public Notification received1 linked violation
September 4, 2025State Public Notification received1 linked violation
September 4, 2025State Public Notification received1 linked violation
September 4, 2025State Public Notification received1 linked violation
September 4, 2025State Public Notification received3 linked violations
August 29, 2025State Compliance achieved1 linked violation
August 13, 2025State Violation/Reminder Notice1 linked violation
August 13, 2025State Public Notification requested1 linked violation
July 29, 2025State Compliance achieved1 linked violation
May 8, 2025State Administrative/Compliance Order without penalty issued1 linked violation
May 8, 2025State Public Notification requested1 linked violation
April 3, 2025State Administrative/Compliance Order without penalty issued3 linked violations
April 3, 2025State Public Notification requested3 linked violations
March 6, 2025State Public Notification requested1 linked violation
March 6, 2025State Violation/Reminder Notice1 linked violation
January 7, 2025State Administrative/Compliance Order without penalty issued1 linked violation
January 7, 2025State Public Notification requested1 linked violation
December 30, 2024State Compliance achieved4 linked violations
October 2, 2024State Public Notification received2 linked violations
October 2, 2024State Public Notification received4 linked violations
August 30, 2024State Public Notification requested4 linked violations
August 30, 2024State Administrative/Compliance Order without penalty issued4 linked violations
September 27, 2023State Compliance achieved2 linked violations
June 22, 2022State Public Notification requested2 linked violations
May 9, 2022State Compliance achieved2 linked violations
April 14, 2022State Public Notification received3 linked violations
March 1, 2022State Public Notification requested2 linked violations
February 22, 2022State Compliance achieved4 linked violations
January 19, 2022State Violation/Reminder Notice2 linked violations
January 19, 2022State Violation/Reminder Notice2 linked violations
January 19, 2022State Public Notification requested2 linked violations
December 15, 2021State Public Notification received4 linked violations
November 5, 2021State Public Notification requested7 linked violations
July 25, 2016State Compliance achieved3 linked violations
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved4 linked violations
July 25, 2016State Compliance achieved3 linked violations
July 25, 2016State Compliance achieved3 linked violations
July 25, 2016State Compliance achieved1 linked violation
December 7, 2015State Public Notification requested2 linked violations
February 23, 2015State Compliance achieved5 linked violations
February 23, 2015State Compliance achieved3 linked violations
January 14, 2015State Violation/Reminder Notice11 linked violations
December 16, 2014State Public Notification received3 linked violations
October 14, 2014State Compliance achieved3 linked violations
October 8, 2014State Compliance achieved2 linked violations
July 8, 2014State Public Notification received2 linked violations
June 20, 2014State Administrative/Compliance Order with penalty issued1 linked violation
June 20, 2014State Public Notification requested1 linked violation
June 5, 2014State Compliance achieved4 linked violations
June 5, 2014State Public Notification received3 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Administrative/Compliance Order with penalty issued4 linked violations
March 17, 2014State Administrative/Compliance Order with penalty issued13 linked violations
March 17, 2014State Public Notification requested3 linked violations
November 14, 2013State Violation/Reminder Notice3 linked violations
September 20, 2013State Public Notification received2 linked violations
February 9, 2010State Public Notification requested4 linked violations
January 27, 2010State Public Notification requested2 linked violations
October 5, 2009State Compliance achieved7 linked violations
June 30, 2009State Violation/Reminder Notice7 linked violations
October 27, 2008State Public Notification requested2 linked violations
August 1, 2007State Compliance achieved2 linked violations
March 9, 2007State Public Notification received3 linked violations
March 9, 2007State Compliance achieved2 linked violations
March 9, 2007State Public Notification received4 linked violations
February 21, 2007State Public Notification requested12 linked violations
February 2, 2007State Administrative/Compliance Order with penalty issued9 linked violations
July 26, 2005State Administrative/Compliance Order with penalty issued9 linked violations
December 17, 2004State Compliance achieved9 linked violations
November 2, 2004State Public Notification requested10 linked violations
March 24, 1998State Compliance achieved1 linked violation

Common questions

Is TISHOMINGO MUNICIPAL AUTHORITY required to publish a Consumer Confidence Report?: Yes. TISHOMINGO MUNICIPAL AUTHORITY 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 TISHOMINGO MUNICIPAL AUTHORITY’s next Consumer Confidence Report due?: TISHOMINGO MUNICIPAL AUTHORITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TISHOMINGO MUNICIPAL AUTHORITY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for TISHOMINGO MUNICIPAL AUTHORITY.
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

TISHOMINGO MUNICIPAL AUTHORITY

580-371-2369

TISHOMINGO, OK 73460