Public Water Partners

CHEYENNE, OK · Roger Mills County

CHEYENNE Water System

Consumer Confidence Report status

CHEYENNE 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 CHEYENNE.

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

CHEYENNE is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 778 people from surface water.

As of August 1, 2026, its federal record holds 78 entries between 1994 and 2025, all of which EPA lists as closed.

Of the 78, 34 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 the Surface Water Treatment Rules.

Violation history

  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    December 1, 2025 – December 31, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2025 – December 31, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2025 – June 30, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2025 – March 31, 2025

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    December 30, 2024 – April 30, 2025

    Resolved
  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – October 7, 2025

    Resolved
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – October 7, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2024 – December 31, 2024

    Resolved
  • 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)

    CARBON, TOTAL

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2023 – May 31, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    May 1, 2023 – July 31, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    May 1, 2023 – July 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

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2019 – June 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2019 – March 31, 2019

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    October 1, 2018 – October 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2018 – December 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
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2017 – September 30, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    July 1, 2017 – September 27, 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
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    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

    October 1, 2014 – December 31, 2014

    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
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2012 – September 30, 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

    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
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    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
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    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)

    Total Haloacetic Acids (HAA5)

    October 1, 2007 – December 31, 2007

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2007 – December 31, 2007

    Archived
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    April 1, 2007 – June 30, 2007

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    April 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2007 – March 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2006 – December 31, 2006

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    July 1, 1994 – July 31, 1994

    Archived

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

Enforcement actions

Common questions

Is CHEYENNE required to publish a Consumer Confidence Report?

Yes. CHEYENNE 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 CHEYENNE’s next Consumer Confidence Report due?

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

Does CHEYENNE have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CHEYENNE.

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

CHEYENNE

580-497-2455

CHEYENNE, OK 73628