CHATTANOOGA, OK · Tillman County

TILLMAN CO RWD #1 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): OK2007107
System type: Community Water System
Population served: 1,500
Service connections: 825
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
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
September 1, 2024 – September 30, 2024
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2023 – August 31, 2023
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
July 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
June 20, 2023
Unaddressed
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2022 – September 30, 2022
Resolved
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
July 1, 2020 – September 30, 2020
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2017 – March 14, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2016 – November 30, 2016
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
April 1, 2016 – June 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
February 29, 2016 – May 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2013 – May 31, 2013
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2013 – December 31, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – October 14, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
June 30, 1996 – September 29, 1996
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – June 23, 1994
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
September 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
August 1, 2023 – August 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 20, 2023	Monitoring, Source Water (GWR)	E. COLI	—	Unaddressed
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
December 30, 2017 – March 14, 2018	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
September 1, 2016 – November 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
February 29, 2016 – May 31, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
May 1, 2013 – May 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
January 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2012 – October 14, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2012 – June 30, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 2010 – August 31, 2010	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 30, 1996 – September 29, 1996	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 1, 1994 – June 23, 1994	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

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

Enforcement actions

November 13, 2025State Compliance achieved2 linked violations
July 11, 2025State Violation/Reminder Notice2 linked violations
July 11, 2025State Violation/Reminder Notice2 linked violations
April 29, 2025State Public Notification requested2 linked violations
April 29, 2025State Administrative/Compliance Order without penalty issued2 linked violations
March 6, 2025State Public Notification requested1 linked violation
March 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 30, 2025State Public Notification requested2 linked violations
December 23, 2024State Compliance achieved2 linked violations
November 22, 2024State Public Notification requested2 linked violations
June 13, 2024State Public Notification received2 linked violations
May 7, 2024State Public Notification received2 linked violations
May 1, 2024State Administrative/Compliance Order without penalty issued2 linked violations
March 27, 2024State Compliance achieved2 linked violations
November 27, 2023State Compliance achieved2 linked violations
October 19, 2023State Violation/Reminder Notice2 linked violations
October 19, 2023State Public Notification requested2 linked violations
September 6, 2023State Public Notification received2 linked violations
August 30, 2023State Violation/Reminder Notice2 linked violations
August 30, 2023State Violation/Reminder Notice2 linked violations
August 10, 2023State Public Notification requested2 linked violations
February 9, 2023State Compliance achieved2 linked violations
December 2, 2022State Public Notification requested2 linked violations
January 27, 2021State Administrative/Compliance Order without penalty issued3 linked violations
October 27, 2020State Administrative/Compliance Order without penalty issued3 linked violations
July 30, 2020State Public Notification requested2 linked violations
December 5, 2019State Public Notification received1 linked violation
December 5, 2019State Public Notification received2 linked violations
December 5, 2019State Public Notification received3 linked violations
December 5, 2019State Public Notification received1 linked violation
May 8, 2018State Compliance achieved3 linked violations
March 14, 2018State Compliance achieved6 linked violations
January 12, 2018State Violation/Reminder Notice3 linked violations
January 12, 2018State Public Notification requested4 linked violations
May 16, 2017State Compliance achieved3 linked violations
April 20, 2017State Violation/Reminder Notice3 linked violations
April 20, 2017State Violation/Reminder Notice4 linked violations
April 20, 2017State Public Notification requested3 linked violations
April 20, 2017State Public Notification requested3 linked violations
December 21, 2016State Compliance achieved3 linked violations
September 15, 2016State Public Notification requested2 linked violations
September 15, 2016State Violation/Reminder Notice3 linked violations
September 15, 2016State Violation/Reminder Notice7 linked violations
August 4, 2016State Compliance achieved2 linked violations
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 achieved2 linked violations
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved2 linked violations
February 25, 2016State Compliance achieved1 linked violation
October 14, 2015State Compliance achieved1 linked violation
September 9, 2015State Administrative/Compliance Order with penalty issued1 linked violation
May 28, 2015State Public Notification received1 linked violation
May 4, 2015State Public Notification requested1 linked violation
March 18, 2015State Public Notification received1 linked violation
February 12, 2015State Public Notification requested1 linked violation
May 31, 2013State Compliance achieved1 linked violation
November 12, 2010State Public Notification requested2 linked violations
November 12, 2010State Violation/Reminder Notice1 linked violation
August 9, 2010State Compliance achieved7 linked violations
May 26, 2010State Public Notification received1 linked violation
May 3, 2010State Public Notification requested5 linked violations
May 3, 2010State Administrative/Compliance Order with penalty issued6 linked violations
December 4, 2009State Administrative/Compliance Order with penalty issued2 linked violations
October 6, 2009State Administrative/Compliance Order with penalty issued2 linked violations
May 29, 2009State Administrative/Compliance Order with penalty issued3 linked violations
February 12, 2009State Public Notification requested1 linked violation
February 12, 2009State Administrative/Compliance Order with penalty issued1 linked violation
December 31, 2008State Public Notification received1 linked violation
December 31, 2008State Public Notification received1 linked violation
December 18, 2008State Public Notification received2 linked violations
December 11, 2008State Violation/Reminder Notice2 linked violations
November 20, 2008State Public Notification requested2 linked violations
October 24, 2007State Compliance achieved4 linked violations
July 25, 2007State Public Notification requested1 linked violation
July 1, 2007State Compliance achieved1 linked violation
May 9, 2007State Administrative/Compliance Order with penalty issued2 linked violations
March 27, 2007State Public Notification received2 linked violations
February 22, 2007State Public Notification requested2 linked violations
February 22, 2007State Administrative/Compliance Order with penalty issued1 linked violation
December 6, 2006State Public Notification requested2 linked violations
October 16, 2006State Public Notification received2 linked violations
July 31, 2006State Compliance achieved2 linked violations
February 3, 2006State Violation/Reminder Notice1 linked violation
February 3, 2006State Public Notification requested1 linked violation
May 21, 2001State Compliance achieved3 linked violations
September 30, 1987State Administrative/Compliance Order without penalty issued58 linked violations

Contact

TILLMAN CO RWD #1

580-597-3097

CHATTANOOGA, OK 73528