CHEYENNE, OK · Roger Mills County

CHEYENNE 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): OK1010803
System type: Community Water System
Population served: 778
Service connections: 498
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
CARBON, TOTAL
November 1, 2025 – November 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2025 – June 30, 2025
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2024 – April 30, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2024 – February 29, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
May 1, 2023 – July 31, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2023 – May 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2020 – June 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2018 – October 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2018 – October 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2018 – September 30, 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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2017 – September 27, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2017 – September 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2017 – June 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2014 – September 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2012 – December 31, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – February 6, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2012 – September 30, 2012
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2009 – March 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2007 – December 31, 2007
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2007 – December 31, 2007
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2006 – December 31, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2005 – March 31, 2005
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1995 – August 31, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1994 – July 31, 1994
Archived

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
November 1, 2025 – November 30, 2025	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 30, 2024 – April 30, 2025	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
February 1, 2024 – February 29, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
May 1, 2023 – July 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
May 1, 2023 – May 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – October 31, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2018 – October 31, 2018	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	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	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2017 – September 27, 2017	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
December 1, 2015 – December 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	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
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2012 – February 6, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2008 – June 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	TTHM	—	Archived
October 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
April 1, 2007 – June 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
March 1, 2005 – March 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 1995 – August 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 1994 – July 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived

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

Enforcement actions

August 7, 2025State Public Notification requested1 linked violation
July 11, 2025State Violation/Reminder Notice1 linked violation
June 18, 2025State no longer subject to Rule2 linked violations
April 3, 2025State Administrative/Compliance Order without penalty issued2 linked violations
January 23, 2025State Public Notification received3 linked violations
January 7, 2025State Public Notification requested2 linked violations
May 30, 2024State Compliance achieved2 linked violations
May 30, 2024State Compliance achieved5 linked violations
April 26, 2024State Public Notification received5 linked violations
April 18, 2024State Public Notification requested2 linked violations
April 18, 2024State Violation/Reminder Notice3 linked violations
April 18, 2024State Public Notification requested3 linked violations
April 18, 2024State Public Notification requested2 linked violations
September 26, 2023State Public Notification received3 linked violations
September 22, 2023State Public Notification requested4 linked violations
September 22, 2023State Public Notification requested3 linked violations
September 22, 2023State Public Notification requested5 linked violations
July 21, 2023State Public Notification requested66 linked violations
July 21, 2023State Violation/Reminder Notice1 linked violation
November 12, 2020State Public Notification requested2 linked violations
May 15, 2020State Violation/Reminder Notice2 linked violations
March 11, 2020State Administrative/Compliance Order with penalty issued27 linked violations
February 21, 2020State Public Notification received1 linked violation
February 3, 2020State Violation/Reminder Notice2 linked violations
February 3, 2020State Public Notification requested2 linked violations
November 25, 2019State Public Notification received1 linked violation
November 4, 2019State Public Notification requested2 linked violations
September 30, 2019State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 26, 2019State Public Notification requested1 linked violation
September 26, 2019State Public Notification requested2 linked violations
September 26, 2019State Violation/Reminder Notice1 linked violation
July 23, 2019State Violation/Reminder Notice2 linked violations
May 9, 2019State Public Notification received2 linked violations
May 1, 2019State Public Notification requested1 linked violation
February 5, 2019State Public Notification received2 linked violations
January 31, 2019State Public Notification requested2 linked violations
December 27, 2018State Public Notification received4 linked violations
December 14, 2018State Public Notification requested3 linked violations
September 21, 2018State Public Notification received1 linked violation
September 14, 2018State Public Notification requested1 linked violation
May 23, 2018State Public Notification received1 linked violation
May 10, 2018State Violation/Reminder Notice2 linked violations
May 10, 2018State Public Notification requested1 linked violation
February 26, 2018State Public Notification requested1 linked violation
February 26, 2018State Violation/Reminder Notice1 linked violation
December 18, 2017State Public Notification requested1 linked violation
September 27, 2017State Compliance achieved21 linked violations
September 21, 2017State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 21, 2017State Public Notification requested2 linked violations
September 7, 2017State Public Notification received3 linked violations
June 19, 2017State Public Notification requested33 linked violations
April 20, 2017State Public Notification requested1 linked violation
March 13, 2017State Public Notification received1 linked violation
January 24, 2017State Public Notification received5 linked violations
December 28, 2016State Public Notification requested5 linked violations
July 7, 2016State Compliance achieved1 linked violation
July 7, 2016State Compliance achieved1 linked violation
July 7, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 7, 2016State Compliance achieved1 linked violation
July 7, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 7, 2016State Compliance achieved1 linked violation
July 7, 2016State Compliance achieved1 linked violation
July 7, 2016State Compliance achieved2 linked violations
July 7, 2016State Compliance achieved1 linked violation
June 29, 2016State Public Notification received2 linked violations
June 23, 2016State Administrative/Compliance Order with penalty issued25 linked violations
March 9, 2016State Administrative/Compliance Order with penalty issued3 linked violations
October 2, 2015State Compliance achieved3 linked violations
September 21, 2015State Administrative/Compliance Order with penalty issued4 linked violations
September 9, 2015State Administrative/Compliance Order with penalty issued2 linked violations
September 2, 2015State Compliance achieved3 linked violations
August 19, 2015State Public Notification requested3 linked violations
June 9, 2015State Public Notification requested4 linked violations
March 23, 2015State Public Notification received1 linked violation
January 14, 2015State Violation/Reminder Notice1 linked violation
November 12, 2014State Administrative/Compliance Order with penalty issued45 linked violations
November 12, 2014State Public Notification requested4 linked violations
October 1, 2013State Compliance achieved4 linked violations
July 11, 2013State Public Notification requested3 linked violations
July 3, 2013State Public Notification received4 linked violations
January 14, 2013State Public Notification received5 linked violations
May 26, 2010State Public Notification received4 linked violations
May 18, 2010State Public Notification requested4 linked violations
February 12, 2009State Administrative/Compliance Order with penalty issued16 linked violations
January 23, 2009State Public Notification received6 linked violations
January 15, 2009State Public Notification requested5 linked violations
December 22, 2008State Public Notification requested7 linked violations
January 1, 2008State Compliance achieved49 linked violations
February 16, 2007State Public Notification requested3 linked violations
September 13, 2006State Public Notification requested42 linked violations
September 13, 2006State Public Notification requested39 linked violations
November 4, 2005State Compliance achieved97 linked violations

Contact

CHEYENNE

580-497-2455

CHEYENNE, OK 73628