Drinking Water Compliance OS

TAHLEQUAH, OK · Cherokee County

SEQUOYAH HIGH SCHOOL Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of September 22, 2016. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Cherokee County, OK.

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)
OK3001112
System type
Community Water System
Population served
100
Service connections
31
Ownership
Native American tribal
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2016 – March 31, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2016 – March 31, 2016

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

    Lead and Copper Rule

    January 1, 2016 – September 21, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2015 – December 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2015 – November 30, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2015 – October 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2015 – December 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2015 – December 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2015 – December 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2015 – September 30, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2015 – August 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2015 – July 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2015 – September 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2015 – September 30, 2015

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2015 – September 21, 2016

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

    Lead and Copper Rule

    July 1, 2015 – September 21, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2015 – June 30, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2015 – May 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2015 – April 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2015 – June 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    April 1, 2015 – June 30, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2015 – March 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2015 – February 28, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2015 – March 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2015 – January 31, 2015

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

    Lead and Copper Rule

    January 1, 2015 – September 21, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2015 – March 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2014 – December 31, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2014 – November 30, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2014 – December 31, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2014 – December 31, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2014 – October 31, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2014 – September 30, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2014 – August 31, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2014 – September 30, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2014 – July 31, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2014 – September 30, 2014

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

    Lead and Copper Rule

    July 1, 2014 – September 21, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2014 – September 21, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2014 – June 30, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    April 1, 2014 – June 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2014 – June 30, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2014 – June 30, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2014 – March 31, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2014 – January 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2014 – March 31, 2014

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

    Lead and Copper Rule

    January 1, 2014 – September 21, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2013 – December 31, 2013

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2013 – November 30, 2013

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2013 – December 31, 2013

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2013 – December 31, 2013

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2013 – September 21, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2012 – August 31, 2012

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – September 21, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2011 – September 30, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2011 – May 31, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2011 – April 30, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2011 – March 31, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2011 – February 28, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2010 – November 30, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2010 – August 31, 2010

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2010 – September 21, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2008 – September 21, 2016

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Last known contact on file (system is inactive)

SEQUOYAH HIGH SCHOOL

918-453-5013

TAHLEQUAH, OK 74465