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

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

SHAWNEE 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.

SHAWNEE, OK · Pottawatomie County

SHAWNEE MUNICIPAL AUTHORITY Water System

Consumer Confidence Report status

SHAWNEE 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 SHAWNEE 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): OK1020504
System type: Community Water System
Population served: 29,990
Service connections: 13,772
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

SHAWNEE MUNICIPAL AUTHORITY is among the 18 largest community water systems in Oklahoma, serving 29,990 people from surface water.

As of August 1, 2026, its federal record holds 24 entries between 1992 and 2026, all of which EPA lists as closed.

Of the 24, 7 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 Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
CARBON, TOTAL
February 1, 2026 – February 28, 2026
Archived
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
February 1, 2026 – February 28, 2026
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2025 – December 31, 2025
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2025 – September 30, 2025
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2025 – June 30, 2025
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2025 – March 31, 2025
Archived
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
September 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
September 1, 2024 – September 30, 2024
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2015 – July 31, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2015 – June 30, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
December 1, 2008 – January 31, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2008 – March 31, 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
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2004 – May 31, 2004
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2004 – April 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2003 – December 31, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2002 – December 31, 2002
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2001 – August 31, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2001 – March 31, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1992 – October 31, 1992
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
February 1, 2026 – February 28, 2026	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
February 1, 2026 – February 28, 2026	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
October 1, 2025 – December 31, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2025 – September 30, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
April 1, 2025 – June 30, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2025 – March 31, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
September 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
September 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2015 – July 31, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 1, 2015 – June 30, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2008 – January 31, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2008 – December 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2008 – June 30, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2008 – March 31, 2008	Monitoring and Reporting (DBP)	TTHM	—	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
May 1, 2004 – May 31, 2004	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2004 – April 30, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
August 1, 2001 – August 31, 2001	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2001 – March 31, 2001	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 1992 – October 31, 1992	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

February 2, 2026State Public Notification requested2 linked violations
November 12, 2025State Administrative/Compliance Order without penalty issued2 linked violations
September 17, 2025State Public Notification received2 linked violations
September 4, 2025State Administrative/Compliance Order without penalty issued2 linked violations
September 4, 2025State Public Notification requested1 linked violation
July 1, 2025State Public Notification requested3 linked violations
March 6, 2025State Public Notification requested1 linked violation
December 6, 2024State Compliance achieved3 linked violations
December 6, 2024State Compliance achieved1 linked violation
November 22, 2024State Public Notification requested2 linked violations
November 21, 2019State Public Notification requested3 linked violations
November 21, 2019State Violation/Reminder Notice1 linked violation
July 25, 2016State Compliance achieved2 linked violations
July 25, 2016State Compliance achieved31 linked violations
September 23, 2015State Public Notification requested4 linked violations
September 23, 2015State Administrative/Compliance Order with penalty issued2 linked violations
September 5, 2015State Compliance achieved2 linked violations
May 8, 2014State Compliance achieved1 linked violation
June 11, 2009State Public Notification requested4 linked violations
April 29, 2009State Public Notification received2 linked violations
January 27, 2009State Administrative/Compliance Order with penalty issued4 linked violations
January 6, 2009State Public Notification received2 linked violations
January 6, 2009State Public Notification received8 linked violations
January 1, 2009State Compliance achieved4 linked violations
November 5, 2008State Administrative/Compliance Order with penalty issued2 linked violations
October 10, 2008State Administrative/Compliance Order with penalty issued8 linked violations
March 18, 2008State Administrative/Compliance Order with penalty issued5 linked violations
May 19, 2006State Public Notification received9 linked violations
April 17, 2006State Public Notification requested2 linked violations
March 6, 2006State Administrative/Compliance Order without penalty issued36 linked violations
September 12, 2005State Public Notification received4 linked violations
March 21, 2005State Public Notification requested4 linked violations
September 7, 2004State Public Notification requested2 linked violations
July 14, 2004State Public Notification requested87 linked violations
July 14, 2004State Administrative/Compliance Order with penalty issued58 linked violations
March 25, 2004State Public Notification received7 linked violations
March 18, 2004State Administrative/Compliance Order with penalty issued43 linked violations
March 3, 2004State Administrative/Compliance Order with penalty issued5 linked violations
November 24, 2003State Public Notification received5 linked violations
September 11, 2003State Public Notification received4 linked violations
January 23, 2003State Administrative/Compliance Order with penalty issued6 linked violations
October 31, 2002State Administrative/Compliance Order with penalty issued2 linked violations
July 10, 2002State Administrative/Compliance Order with penalty issued2 linked violations
November 9, 2001State Compliance achieved2 linked violations
September 18, 2001State Administrative/Compliance Order with penalty issued1 linked violation
April 15, 1999State Administrative/Compliance Order with penalty issued8 linked violations
July 20, 1995State Administrative/Compliance Order without penalty issued5 linked violations

Common questions

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

SHAWNEE MUNICIPAL AUTHORITY

405-273-1960

SHAWNEE, OK 74801