GRANDFIELD, OK · Tillman County

GRANDFIELD 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): OK2007103
System type: Community Water System
Population served: 1,110
Service connections: 595
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2025 – March 31, 2025
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2024 – September 30, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2024 – March 31, 2024
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2023 – March 19, 2024
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
September 29, 2023 – March 19, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2023 – June 30, 2023
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
April 1, 2023 – July 3, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2023 – March 31, 2023
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2022 – July 3, 2023
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2022 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2022 – December 31, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2022 – September 30, 2022
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2022 – September 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2022 – March 31, 2022
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2021 – December 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2021 – March 31, 2021
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2021 – March 31, 2021
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2020 – December 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2020 – June 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2020 – June 30, 2020
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2020 – March 31, 2020
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2019 – September 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2019 – March 31, 2019
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2018 – December 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2018 – June 30, 2018
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2017 – December 31, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 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
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2015 – March 31, 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
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
February 1, 2010 – April 30, 2010
Resolved
Monitoring, Routine (IDSE)
—
TTHM
February 1, 2010 – April 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2009 – September 30, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
February 1, 2009 – April 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
February 1, 2009 – April 30, 2009
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2008 – February 29, 2008
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2008 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2008 – December 31, 2010
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, Regular
—
Vinyl chloride
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Styrene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Toluene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2004 – December 31, 2004
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 30, 2023 – March 19, 2024	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
September 29, 2023 – March 19, 2024	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2023 – July 3, 2023	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 30, 2022 – July 3, 2023	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2021 – December 31, 2021	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
February 1, 2010 – April 30, 2010	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
February 1, 2010 – April 30, 2010	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
September 1, 2009 – September 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2009 – June 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2009 – April 30, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
February 1, 2009 – April 30, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
December 1, 2008 – December 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – December 31, 2008	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2008 – July 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2008 – February 29, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	2,4-D	—	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
October 1, 2007 – December 31, 2007	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Styrene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Toluene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Benzene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved

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

Enforcement actions

October 22, 2025State Public Notification requested1 linked violation
August 26, 2025State Public Notification requested1 linked violation
June 18, 2025State no longer subject to Rule4 linked violations
June 18, 2025State no longer subject to Rule22 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule5 linked violations
June 18, 2025State no longer subject to Rule2 linked violations
June 18, 2025State no longer subject to Rule6 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule2 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
May 27, 2025State Public Notification requested1 linked violation
May 23, 2025State Public Notification received1 linked violation
January 31, 2025State Public Notification received2 linked violations
October 28, 2024State Public Notification requested3 linked violations
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved4 linked violations
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved5 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved5 linked violations
September 19, 2024State Compliance achieved2 linked violations
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved3 linked violations
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved1 linked violation
September 19, 2024State Compliance achieved5 linked violations
September 19, 2024State Compliance achieved5 linked violations
July 19, 2024State Public Notification received4 linked violations
June 14, 2024State Public Notification received2 linked violations
June 14, 2024State Public Notification received1 linked violation
May 23, 2024State Public Notification received3 linked violations
May 21, 2024State Public Notification requested2 linked violations
March 19, 2024State Compliance achieved2 linked violations
March 19, 2024State Compliance achieved3 linked violations
March 1, 2024State Public Notification requested1 linked violation
September 12, 2023State Public Notification requested2 linked violations
August 25, 2023State Violation/Reminder Notice3 linked violations
August 17, 2023State Violation/Reminder Notice1 linked violation
August 7, 2023State no longer subject to Rule2 linked violations
July 20, 2023State Violation/Reminder Notice3 linked violations
July 3, 2023State Compliance achieved1 linked violation
May 1, 2023State Violation/Reminder Notice1 linked violation
March 30, 2023State Public Notification requested41 linked violations
December 22, 2022State Public Notification requested3 linked violations
December 22, 2022State Violation/Reminder Notice4 linked violations
November 3, 2022State Public Notification requested2 linked violations
August 25, 2022State Administrative/Compliance Order with penalty issued4 linked violations
August 9, 2022State Violation/Reminder Notice2 linked violations
August 9, 2022State Public Notification requested2 linked violations
April 28, 2022State Violation/Reminder Notice10 linked violations
April 25, 2022State Public Notification requested2 linked violations
April 13, 2022State Public Notification received2 linked violations
January 20, 2022State Violation/Reminder Notice2 linked violations
November 8, 2021State Public Notification received3 linked violations
July 29, 2021State Violation/Reminder Notice2 linked violations
April 23, 2021State Public Notification requested2 linked violations
March 29, 2021State Public Notification received2 linked violations
November 23, 2020State Public Notification received3 linked violations
July 30, 2020State Violation/Reminder Notice4 linked violations
July 30, 2020State Public Notification requested3 linked violations
July 1, 2020State Public Notification received3 linked violations
April 27, 2020State Public Notification received2 linked violations
April 23, 2020State Public Notification requested1 linked violation
April 23, 2020State Violation/Reminder Notice2 linked violations
February 26, 2020State Public Notification received1 linked violation
February 12, 2020State Violation/Reminder Notice2 linked violations
February 12, 2020State Public Notification requested1 linked violation
October 24, 2019State Public Notification requested2 linked violations
October 24, 2019State Violation/Reminder Notice2 linked violations
October 24, 2019State Violation/Reminder Notice2 linked violations
October 24, 2019State Public Notification requested2 linked violations
August 27, 2019State Public Notification requested1 linked violation
July 26, 2019State Violation/Reminder Notice1 linked violation
June 24, 2019State Violation/Reminder Notice1 linked violation
June 24, 2019State Public Notification requested1 linked violation
June 6, 2019State Violation/Reminder Notice1 linked violation
March 6, 2019State Public Notification requested1 linked violation
January 31, 2019State Public Notification received2 linked violations
January 22, 2019State Public Notification requested1 linked violation
January 22, 2019State Violation/Reminder Notice1 linked violation
December 7, 2018State Violation/Reminder Notice1 linked violation
November 13, 2018State Public Notification received1 linked violation
October 16, 2018State Violation/Reminder Notice1 linked violation
October 16, 2018State Public Notification requested1 linked violation
October 3, 2018State Public Notification requested2 linked violations
August 6, 2018State Public Notification received1 linked violation
July 26, 2018State Violation/Reminder Notice1 linked violation
July 3, 2018State Public Notification received2 linked violations
June 8, 2018State Public Notification received1 linked violation
May 18, 2018State Public Notification requested1 linked violation
May 18, 2018State Violation/Reminder Notice1 linked violation
May 3, 2018State Administrative/Compliance Order without penalty issued1 linked violation
April 27, 2018State Public Notification received1 linked violation
April 27, 2018State Violation/Reminder Notice1 linked violation
January 29, 2018State Public Notification received1 linked violation
January 29, 2018State Public Notification requested1 linked violation
December 28, 2017State Public Notification received2 linked violations
December 6, 2017State Violation/Reminder Notice1 linked violation
September 11, 2017State Public Notification requested2 linked violations
July 28, 2017State Public Notification received1 linked violation
June 20, 2017State Administrative/Compliance Order with penalty issued6 linked violations
May 15, 2017State Public Notification received3 linked violations
March 23, 2017State Administrative/Compliance Order with penalty issued3 linked violations
March 23, 2017State Public Notification requested3 linked violations
February 2, 2017State Violation/Reminder Notice3 linked violations
October 31, 2016State Public Notification received3 linked violations
August 4, 2016State Compliance achieved3 linked violations
August 4, 2016State Compliance achieved4 linked violations
August 4, 2016State Compliance achieved4 linked violations
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 2, 2016State Public Notification requested5 linked violations
June 23, 2016State Administrative/Compliance Order with penalty issued4 linked violations
May 6, 2016State Public Notification received3 linked violations
November 3, 2015State Public Notification requested3 linked violations
October 12, 2015State Administrative/Compliance Order with penalty issued4 linked violations
October 12, 2015State Public Notification requested4 linked violations
April 9, 2015State Administrative/Compliance Order with penalty issued4 linked violations
December 31, 2014State Administrative/Compliance Order with penalty issued4 linked violations
October 7, 2014State Public Notification received4 linked violations
August 1, 2014State Public Notification requested4 linked violations
April 25, 2014State Compliance achieved9 linked violations
April 25, 2014State Compliance achieved12 linked violations
April 24, 2014State Public Notification requested4 linked violations
February 4, 2014State Public Notification requested5 linked violations
January 23, 2014State Public Notification received5 linked violations
August 16, 2013State Public Notification received5 linked violations
July 8, 2013State Violation/Reminder Notice4 linked violations
May 10, 2013State Public Notification requested3 linked violations
April 2, 2013State Public Notification requested4 linked violations
March 11, 2013State Public Notification received4 linked violations
December 6, 2012State Violation/Reminder Notice5 linked violations
August 2, 2012State Violation/Reminder Notice7 linked violations
July 3, 2012State Public Notification requested4 linked violations
May 31, 2012State Public Notification received6 linked violations
May 16, 2012State Public Notification requested3 linked violations
April 9, 2012State Violation/Reminder Notice5 linked violations
February 15, 2012State Public Notification requested7 linked violations
October 3, 2011State Public Notification received5 linked violations
September 22, 2011State Violation/Reminder Notice3 linked violations
June 7, 2011State Public Notification requested5 linked violations
February 22, 2011State Violation/Reminder Notice56 linked violations
February 22, 2011State Administrative/Compliance Order with penalty issued7 linked violations
February 3, 2011State Public Notification received47 linked violations
October 21, 2010State Public Notification received5 linked violations
October 5, 2010State Compliance achieved16 linked violations
October 1, 2010State Compliance achieved14 linked violations
July 6, 2010State Public Notification requested7 linked violations
March 9, 2010State Public Notification requested15 linked violations
March 1, 2010State Public Notification received5 linked violations
January 14, 2010State Public Notification requested10 linked violations
November 6, 2009State Violation/Reminder Notice7 linked violations
October 22, 2009State Compliance Meeting conducted27 linked violations
August 27, 2009State Public Notification requested4 linked violations
January 14, 2009State Public Notification requested7 linked violations
January 7, 2009State Public Notification received5 linked violations
December 24, 2008State Public Notification requested4 linked violations
November 26, 2008State Administrative/Compliance Order with penalty issued53 linked violations
September 23, 2008State Violation/Reminder Notice7 linked violations
May 13, 2008State Public Notification requested7 linked violations
March 5, 2008State Administrative/Compliance Order with penalty issued27 linked violations
July 19, 2007State Administrative/Compliance Order without penalty issued47 linked violations

Contact

GRANDFIELD

580-479-5215

GRANDFIELD, OK 73546