OK1020910 · Oklahoma
OSU WATER PLANT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 4
- EPA health-based flag
- 3
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 1
Counties listed by EPA · Payne County, Oklahoma
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 60 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 71976 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field September 30, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9133882 November 19, 2025 Informal State Public Notification requested 9133883 November 19, 2025 Formal State Administrative/Compliance Order without penalty issued 9133885 December 10, 2025 Resolving State Compliance achieved 9133886 June 4, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 71972 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start June 30, 2025 · period end July 14, 2025 · first reported August 13, 2025 · EPA return-to-compliance field July 14, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9133881 July 14, 2025 Resolving State Compliance achieved 9133877 July 29, 2025 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 71973 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end June 30, 2025 · first reported November 14, 2025 · EPA return-to-compliance field June 30, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9133878 September 4, 2025 Informal State Public Notification requested 9133879 September 4, 2025 Formal State Administrative/Compliance Order without penalty issued 9133880 October 6, 2025 Informal State Public Notification received 9133884 December 10, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique (SWTR and GWR)Violation 71965 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2023 · period end March 31, 2023 · first reported August 29, 2023 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9133871 July 6, 2023 Formal State Administrative/Compliance Order without penalty issued 9133872 July 6, 2023 Informal State Public Notification requested 9133873 July 31, 2023 Informal State Public Notification received 9133876 November 28, 2023 Resolving State Compliance achieved
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility