OK1011401 · Oklahoma

FREDERICK

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

Violation records shown: 12
EPA health-based flag: 11
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 1

Counties listed by EPA · Tillman 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

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286091 · Asbestos · Inorganic Chemicals

Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004612	May 22, 2026	Formal	State Administrative/Compliance Order without penalty issued
9004613	May 22, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286084 · Asbestos · Inorganic Chemicals

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004602	February 27, 2026	Informal	State Public Notification requested
9004603	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
9004605	March 30, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286083 · Asbestos · Inorganic Chemicals

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004597	December 1, 2025	Formal	State Administrative/Compliance Order without penalty issued
9004598	December 1, 2025	Informal	State Public Notification requested
9004599	December 31, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286082 · Asbestos · Inorganic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported February 18, 2026 · 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
9004592	October 8, 2025	Formal	State Administrative/Compliance Order without penalty issued
9004596	October 8, 2025	Informal	State Public Notification requested
9004594	November 24, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved
LSL ReportingViolation 286080 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · period end October 16, 2024 · first reported August 13, 2025 · EPA return-to-compliance field October 16, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9004601 October 16, 2024 Resolving State Compliance achieved
9004590 July 11, 2025 Informal State Violation/Reminder Notice
EPA health-based flag · Resolved
LSL InventoryViolation 286079 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · period end October 16, 2024 · first reported August 13, 2025 · EPA return-to-compliance field October 16, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9004600 October 16, 2024 Resolving State Compliance achieved
9004589 July 11, 2025 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004601	October 16, 2024	Resolving	State Compliance achieved
9004590	July 11, 2025	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004600	October 16, 2024	Resolving	State Compliance achieved
9004589	July 11, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286073 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported September 30, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004585	April 30, 2024	Formal	State Administrative/Compliance Order with penalty issued
9004586	July 16, 2024	Informal	State Violation/Reminder Notice
9004587	July 16, 2024	Informal	State Public Notification requested
9004588	August 14, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286071 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004583	February 8, 2024	Formal	State Administrative/Compliance Order without penalty issued
9004584	February 8, 2024	Informal	State Public Notification requested
9004585	April 30, 2024	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 286068 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field September 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004578	October 27, 2023	Formal	State Administrative/Compliance Order without penalty issued
9004579	October 27, 2023	Informal	State Public Notification requested
9004582	December 11, 2023	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 286067 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported January 2, 2024 · EPA return-to-compliance field September 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004575	October 4, 2023	Formal	State Administrative/Compliance Order without penalty issued
9004576	October 4, 2023	Informal	State Public Notification requested
9004581	December 11, 2023	Informal	State Public Notification received
9004585	April 30, 2024	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 286064 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 29, 2023 · EPA return-to-compliance field June 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004573	August 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
9004574	August 21, 2023	Informal	State Public Notification requested
9004585	April 30, 2024	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 286059 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported August 29, 2023 · EPA return-to-compliance field March 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9004571	May 30, 2023	Formal	State Administrative/Compliance Order without penalty issued
9004572	May 30, 2023	Informal	State Public Notification requested
9004585	April 30, 2024	Formal	State Administrative/Compliance Order with penalty issued

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