TONKAWA, OK · Kay County

TONKAWA TRIBE OF INDIANS OF OKLAHOMA Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of July 9, 2024. 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 Kay 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): OK3003617
System type: Community Water System
Population served: 150
Service connections: 110
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 2, 2022 – July 9, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2017 – December 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – July 9, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2015 – July 31, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2014 – June 30, 2014
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 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – July 9, 2024
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2010 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2008 – March 31, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2006 – December 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – July 9, 2024
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2006 – September 30, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1999 – September 30, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1999 – April 30, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1997 – June 30, 1997
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
June 1, 1993 – April 15, 2000
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2023 – July 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 2, 2022 – July 9, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
March 1, 2019 – March 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2016 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2015 – July 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2014 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2014 – June 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2012 – August 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2012 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – July 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2011 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2011 – June 30, 2011	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2010 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2008 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2006 – July 9, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1999 – September 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1999 – April 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1997 – June 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1993 – April 15, 2000	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

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

Enforcement actions

July 9, 2024State no longer subject to Rule45 linked violations
March 25, 2024State Compliance achieved2 linked violations
September 22, 2023State Violation/Reminder Notice1 linked violation
September 22, 2023State Public Notification requested1 linked violation
September 22, 2023State Violation/Reminder Notice1 linked violation
September 22, 2023State Public Notification requested1 linked violation
July 12, 2023State Compliance achieved1 linked violation
January 18, 2023State Violation/Reminder Notice1 linked violation
October 21, 2019State Public Notification received1 linked violation
October 21, 2019State Public Notification received1 linked violation
October 21, 2019State Public Notification received1 linked violation
October 1, 2019State Compliance achieved4 linked violations
May 31, 2019State Public Notification requested1 linked violation
May 31, 2019State Public Notification requested1 linked violation
May 31, 2019State Violation/Reminder Notice1 linked violation
May 31, 2019State Violation/Reminder Notice1 linked violation
December 14, 2017State Public Notification requested1 linked violation
December 14, 2017State Violation/Reminder Notice1 linked violation
January 17, 2017State Compliance achieved1 linked violation
January 17, 2017State Public Notification received1 linked violation
January 3, 2017State Violation/Reminder Notice1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
September 16, 2015State Public Notification requested1 linked violation
September 16, 2015State Violation/Reminder Notice1 linked violation
September 3, 2015State Compliance achieved1 linked violation
September 2, 2015State Public Notification received1 linked violation
July 31, 2015State Compliance achieved1 linked violation
July 31, 2015State Compliance achieved1 linked violation
July 21, 2015State Public Notification requested1 linked violation
July 21, 2015State Violation/Reminder Notice1 linked violation
January 14, 2015State Violation/Reminder Notice1 linked violation
September 2, 2014State Public Notification received1 linked violation
August 13, 2014State Public Notification requested1 linked violation
August 13, 2014State Violation/Reminder Notice1 linked violation
June 30, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 30, 2014State Compliance achieved1 linked violation
August 31, 2012State Compliance achieved1 linked violation
July 31, 2012State Compliance achieved1 linked violation
April 8, 2010State Public Notification requested1 linked violation
April 8, 2010State Violation/Reminder Notice1 linked violation
April 18, 2008State Public Notification requested1 linked violation
April 18, 2008State Violation/Reminder Notice1 linked violation
April 1, 2008State Compliance achieved1 linked violation
October 15, 2007State Public Notification received1 linked violation
August 7, 2007State Violation/Reminder Notice1 linked violation
August 7, 2007State Public Notification requested1 linked violation
July 1, 2007State Compliance achieved3 linked violations
February 8, 2007State Public Notification requested1 linked violation
February 8, 2007State Violation/Reminder Notice1 linked violation
October 12, 2006State Violation/Reminder Notice1 linked violation
October 12, 2006State Public Notification requested1 linked violation
May 8, 2006State Compliance achieved1 linked violation
April 24, 2006State Violation/Reminder Notice1 linked violation
April 24, 2006State Public Notification requested1 linked violation
August 29, 2005State Compliance achieved1 linked violation
August 29, 2005State Public Notification received2 linked violations
August 15, 2005State Violation/Reminder Notice1 linked violation
September 8, 2003State Public Notification received2 linked violations
September 8, 2003State Compliance achieved1 linked violation
September 5, 2003State Violation/Reminder Notice1 linked violation
September 5, 2003State Public Notification requested1 linked violation
August 28, 2003State Public Notification requested1 linked violation

Last known contact on file (system is inactive)

TONKAWA TRIBE OF INDIANS OF OKLAHOMA

580-628-2561

TONKAWA, OK 74653