Drinking Water Compliance OS

CALUMET, OK · Canadian County

CANADIAN CO RWD # 1 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)
OK2000908
System type
Community Water System
Population served
750
Service connections
453
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2025 – December 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2025 – September 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2025 – June 30, 2025

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    August 1, 2024 – August 31, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2024 – July 31, 2024

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2024 – March 31, 2024

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2023 – June 30, 2023

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2023 – March 31, 2023

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2022 – September 30, 2022

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2021 – September 30, 2021

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2021 – March 31, 2021

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2020 – September 30, 2020

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2019 – March 31, 2019

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2018 – December 31, 2018

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2017 – December 31, 2017

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2017 – September 30, 2017

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2017 – May 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2017 – June 30, 2017

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2017 – June 13, 2017

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2017 – March 31, 2017

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2016 – June 30, 2016

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2016 – March 31, 2016

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2015 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2015 – December 31, 2015

    Archived
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2015 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2015 – September 30, 2015

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2015 – June 30, 2015

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2015 – March 31, 2015

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2014 – December 31, 2014

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2014 – September 30, 2014

    Archived
  • Monitoring, Source Water (GWR)

    E. COLI

    May 13, 2014 – May 27, 2014

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2014 – June 30, 2014

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2014 – March 31, 2014

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2013 – December 31, 2013

    Archived
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2013 – June 10, 2014

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2013 – September 30, 2013

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2013 – June 30, 2013

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2013 – March 31, 2013

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2012 – December 31, 2012

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2012 – September 30, 2012

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2012 – June 30, 2012

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2012 – March 31, 2012

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2011 – December 31, 2011

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2011 – September 30, 2011

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2011 – June 30, 2011

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2011 – March 31, 2011

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2010 – December 31, 2010

    Archived
  • Monitoring, Regular

    Benzene

    July 1, 2010 – September 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2010 – September 30, 2010

    Archived
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Toluene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Styrene

    July 1, 2010 – September 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2010 – June 30, 2010

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2010 – March 31, 2010

    Archived
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    October 1, 2009 – August 9, 2010

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2009 – December 31, 2009

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2009 – September 30, 2009

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2009 – June 30, 2009

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    January 1, 2009 – March 31, 2009

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2008 – December 31, 2008

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2007 – December 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2007 – December 31, 2007

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    July 1, 2007 – September 30, 2007

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2007 – June 30, 2007

    Archived
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    October 1, 2006 – December 31, 2006

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate-Nitrite

    April 1, 2005 – June 30, 2005

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2004 – June 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate-Nitrite

    October 1, 2003 – December 31, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate-Nitrite

    July 1, 2003 – September 30, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    April 1, 2003 – June 30, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    January 1, 2002 – March 31, 2002

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    July 1, 2001 – September 30, 2001

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    October 1, 1996 – December 31, 1996

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    April 1, 1996 – June 30, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 1994 – February 28, 1994

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    January 1, 1994 – August 7, 1995

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1992 – March 31, 1992

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    March 1, 1982 – February 28, 1985

    Resolved

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

Enforcement actions

Contact

CANADIAN CO RWD # 1

405-262-2696

CALUMET, OK 73014