STILLWATER, OK · Payne County

OSU WATER PLANT 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): OK1020910
System type: Community Water System
Population served: 13,000
Service connections: 413
Ownership: state government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
June 30, 2025 – July 14, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2018 – September 30, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
February 1, 2015 – April 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2014 – October 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2008 – November 30, 2008
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 30, 2025 – July 14, 2025	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2015 – April 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2014 – October 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
November 1, 2008 – November 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2008 – November 30, 2008	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 10, 2025State Compliance achieved1 linked violation
December 10, 2025State Compliance achieved1 linked violation
November 19, 2025State Public Notification requested1 linked violation
November 19, 2025State Administrative/Compliance Order without penalty issued1 linked violation
October 6, 2025State Public Notification received1 linked violation
September 4, 2025State Administrative/Compliance Order without penalty issued1 linked violation
September 4, 2025State Public Notification requested1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 14, 2025State Compliance achieved1 linked violation
November 28, 2023State Compliance achieved1 linked violation
August 30, 2023State no longer subject to Rule4 linked violations
July 31, 2023State Public Notification received1 linked violation
July 6, 2023State Public Notification requested1 linked violation
July 6, 2023State Administrative/Compliance Order without penalty issued1 linked violation
May 25, 2021State Compliance achieved10 linked violations
November 10, 2020State Compliance achieved2 linked violations
October 23, 2020State Violation/Reminder Notice1 linked violation
October 23, 2020State Violation/Reminder Notice1 linked violation
July 14, 2020State Administrative/Compliance Order without penalty issued4 linked violations
July 14, 2020State Public Notification requested4 linked violations
May 6, 2019State Public Notification received6 linked violations
April 11, 2019State Administrative/Compliance Order without penalty issued6 linked violations
April 11, 2019State Public Notification requested6 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved1 linked violation
October 5, 2015State Compliance achieved2 linked violations
June 30, 2015State Intentional no-action1 linked violation
June 22, 2015State Public Notification received2 linked violations
May 29, 2015State Public Notification requested2 linked violations
May 29, 2015State Violation/Reminder Notice2 linked violations
April 1, 2015State Compliance achieved3 linked violations
March 23, 2015State Compliance achieved2 linked violations
December 8, 2014State Public Notification received2 linked violations
November 25, 2014State Public Notification requested2 linked violations
November 25, 2014State Violation/Reminder Notice2 linked violations
October 14, 2014State Compliance achieved2 linked violations
July 16, 2014State Public Notification received2 linked violations
June 18, 2014State Administrative/Compliance Order with penalty issued2 linked violations
June 18, 2014State Public Notification requested2 linked violations
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 20, 2013State Public Notification received1 linked violation
April 30, 2013State Administrative/Compliance Order with penalty issued1 linked violation
April 30, 2013State Public Notification requested1 linked violation
January 20, 2009State Public Notification requested4 linked violations
December 2, 2008State Public Notification received2 linked violations
December 1, 2008State Compliance achieved4 linked violations

Contact

OSU WATER PLANT

405-744-7034

STILLWATER, OK 74078-8026