OK1020903 · Oklahoma

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Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 9
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 6

Counties listed by EPA · Logan 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 7 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 289920 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end October 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field October 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003445	February 19, 2026	Informal	State Violation/Reminder Notice
9003446	February 19, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 289919 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003442	November 21, 2025	Informal	State Violation/Reminder Notice
9003443	November 21, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 289918 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 14, 2025 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003440	September 19, 2025	Informal	State Violation/Reminder Notice
9003441	September 19, 2025	Informal	State Public Notification requested
9003444	November 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 289917 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 14, 2025 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003440	September 19, 2025	Informal	State Violation/Reminder Notice
9003441	September 19, 2025	Informal	State Public Notification requested
9003444	November 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 289915 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start February 1, 2025 · period end February 28, 2025 · first reported May 15, 2025 · EPA return-to-compliance field February 28, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003436	May 6, 2025	Informal	State Violation/Reminder Notice
9003437	May 6, 2025	Informal	State Public Notification requested
9003438	May 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 289914 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2025 · period end February 28, 2025 · first reported May 15, 2025 · EPA return-to-compliance field February 28, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003436	May 6, 2025	Informal	State Violation/Reminder Notice
9003437	May 6, 2025	Informal	State Public Notification requested
9003439	May 21, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 289896 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2021 · period end July 31, 2021 · first reported February 17, 2022 · EPA return-to-compliance field July 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003424	January 6, 2022	Formal	State Administrative/Compliance Order without penalty issued
9003425	January 6, 2022	Informal	State Public Notification requested
9003426	February 4, 2022	Informal	State Public Notification received
9003427	May 17, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 289899 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 26, 2022 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003428	June 8, 2022	Informal	State Violation/Reminder Notice
9003429	June 8, 2022	Informal	State Public Notification requested
9003430	June 8, 2022	Resolving	State Compliance achieved
9003431	July 1, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 289898 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported September 26, 2022 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9003428	June 8, 2022	Informal	State Violation/Reminder Notice
9003429	June 8, 2022	Informal	State Public Notification requested
9003430	June 8, 2022	Resolving	State Compliance achieved
9003431	July 1, 2022	Informal	State Public Notification received

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