NASH, OK · Grant County

NASH 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): OK2002701
System type: Community Water System
Population served: 224
Service connections: 145
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Styrene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2022 – June 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – December 31, 2024
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Toluene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Benzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2019 – October 31, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2019 – September 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2019 – September 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2019 – March 12, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2018 – November 13, 2018
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2017 – September 30, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – November 29, 2017
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2017 – September 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2017 – June 30, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – November 29, 2017
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
July 28, 2015 – July 31, 2015
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
June 25, 2014 – June 25, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2013 – August 31, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2010 – April 30, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2009 – April 30, 2009
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2008 – November 4, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2008 – October 18, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2008 – August 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2008 – December 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Styrene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Toluene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Benzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2023 – December 31, 2023	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Styrene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2022 – December 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – December 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Toluene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Benzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2019 – October 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2019 – September 30, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2019 – March 12, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2018 – November 13, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2017 – November 29, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Gross Beta Particle Activity	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2016 – November 29, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Gross Beta Particle Activity	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 28, 2015 – July 31, 2015	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
June 25, 2014 – June 25, 2015	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
June 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2013 – September 30, 2013	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2013 – August 31, 2013	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
June 1, 2011 – June 30, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2010 – April 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2008 – November 4, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2008 – October 18, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 1, 2008 – September 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2008 – August 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2008 – March 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Styrene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Toluene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Benzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
December 1, 2007 – December 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2007 – November 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – July 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Glyphosate	—	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 4, 2023State Public Notification received189 linked violations

Contact

NASH

580-839-2829

NASH, OK 73761