NINNEKAH, OK · Grady County

GRADY CO RWD #7 (NINNEKAH) Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): OK2002633
System type: Community Water System
Population served: 2,425
Service connections: 1,225
Ownership: local government
Water source: groundwater (wells)

Violation history

LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – September 15, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – September 15, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2024 – January 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2014 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2008 – June 30, 2008
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
October 17, 2024 – September 15, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
October 17, 2024 – September 15, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 1, 2024 – January 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

September 15, 2025State Compliance achieved1 linked violation
September 15, 2025State Compliance achieved1 linked violation
July 11, 2025State Violation/Reminder Notice1 linked violation
July 11, 2025State Violation/Reminder Notice1 linked violation
November 22, 2024State Violation/Reminder Notice1 linked violation
November 22, 2024State Public Notification requested1 linked violation
April 3, 2024State Compliance achieved1 linked violation
April 3, 2024State Compliance achieved1 linked violation
March 28, 2024State Violation/Reminder Notice2 linked violations
March 28, 2024State Public Notification requested2 linked violations
March 6, 2021State Public Notification received1 linked violation
March 6, 2021State Public Notification received1 linked violation
March 6, 2021State Public Notification received1 linked violation
March 6, 2021State Public Notification received1 linked violation
March 6, 2021State Public Notification received1 linked violation
July 27, 2020State Compliance achieved4 linked violations
April 24, 2020State Compliance achieved1 linked violation
March 6, 2020State Violation/Reminder Notice4 linked violations
March 6, 2020State Public Notification requested1 linked violation
March 6, 2020State Public Notification requested4 linked violations
March 6, 2020State Violation/Reminder Notice1 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
October 26, 2012State Compliance achieved7 linked violations
April 1, 2010State Administrative/Compliance Order with penalty issued7 linked violations
January 22, 2010State Public Notification received1 linked violation
January 21, 2010State Violation/Reminder Notice1 linked violation
September 30, 2009State Administrative/Compliance Order with penalty issued1 linked violation
September 30, 2009State Public Notification requested1 linked violation
August 31, 2009State Public Notification received1 linked violation
July 28, 2009State Public Notification requested1 linked violation
July 28, 2009State Administrative/Compliance Order with penalty issued1 linked violation
June 4, 2009State Public Notification received4 linked violations
May 4, 2009State Public Notification requested4 linked violations
May 4, 2009State Administrative/Compliance Order with penalty issued4 linked violations
January 15, 2009State Public Notification received3 linked violations
October 20, 2008State Administrative/Compliance Order with penalty issued3 linked violations
October 20, 2008State Public Notification requested1 linked violation

Contact

GRADY COUNTY RWD #7 (NINNEKAH)

405-224-2398

NINNEKAH, OK 73067