OK2003703 · Oklahoma

OKARCHE

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

Violation records shown: 22
EPA health-based flag: 20
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 2

Counties listed by EPA · Kingfisher 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

Monitoring or reporting · Unaddressed by formal action
Monitoring and Reporting (DBP)Violation 160205 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2026 · period end December 31, 2026 · first reported August 11, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Unaddressed by formal action
Monitoring and Reporting (DBP)Violation 160204 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2026 · period end December 31, 2026 · first reported August 11, 2026
No linked action row appears in the records shown.

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160200 · Nitrate-Nitrite · Nitrate 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139458	July 11, 2025	Informal	State Violation/Reminder Notice
9139459	July 11, 2025	Informal	State Public Notification requested
9139463	July 31, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160197 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 13, 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
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139456	May 7, 2025	Informal	State Violation/Reminder Notice
9139457	May 7, 2025	Informal	State Public Notification requested
9139462	May 12, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160196 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139454	February 24, 2025	Informal	State Violation/Reminder Notice
9139455	February 24, 2025	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160195 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 25, 2025 · EPA return-to-compliance field December 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139451	October 29, 2024	Informal	State Violation/Reminder Notice
9139452	October 29, 2024	Informal	State Public Notification requested
9139453	November 6, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160194 · Nitrate-Nitrite · Nitrate Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139448	July 16, 2024	Informal	State Violation/Reminder Notice
9139449	July 16, 2024	Informal	State Public Notification requested
9139450	July 17, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160193 · Nitrate-Nitrite · Nitrate 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
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139445	April 15, 2024	Informal	State Violation/Reminder Notice
9139446	April 15, 2024	Informal	State Public Notification requested
9139447	May 2, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160192 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 14, 2024 · EPA return-to-compliance field March 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139442	February 1, 2024	Informal	State Violation/Reminder Notice
9139443	February 1, 2024	Informal	State Public Notification requested
9139444	February 12, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160191 · Nitrate-Nitrite · Nitrate 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139439	November 15, 2023	Informal	State Public Notification received
9139440	November 15, 2023	Informal	State Violation/Reminder Notice
9139441	November 15, 2023	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160190 · Nitrate-Nitrite · Nitrate 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
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139432	July 27, 2023	Informal	State Violation/Reminder Notice
9139433	July 27, 2023	Informal	State Public Notification requested
9139434	August 7, 2023	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160189 · Nitrate-Nitrite · Nitrate 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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139429	April 19, 2023	Informal	State Violation/Reminder Notice
9139430	April 19, 2023	Informal	State Public Notification requested
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139435	June 30, 2023	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160188 · Nitrate-Nitrite · Nitrate Rule

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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139424	February 13, 2023	Informal	State Violation/Reminder Notice
9139425	February 13, 2023	Informal	State Public Notification requested
9139426	February 27, 2023	Informal	State Public Notification received
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160187 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 27, 2023 · EPA return-to-compliance field December 31, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139421	December 9, 2022	Informal	State Violation/Reminder Notice
9139422	December 9, 2022	Informal	State Public Notification requested
9139423	December 22, 2022	Informal	State Public Notification received
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160186 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 15, 2022 · EPA return-to-compliance field September 30, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139418	July 6, 2022	Informal	State Violation/Reminder Notice
9139419	July 6, 2022	Informal	State Public Notification requested
9139420	July 18, 2022	Informal	State Public Notification received
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160185 · Nitrate-Nitrite · Nitrate Rule

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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139416	May 12, 2022	Informal	State Violation/Reminder Notice
9139417	May 12, 2022	Informal	State Public Notification requested
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued
9139436	June 30, 2023	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160184 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported May 19, 2022 · EPA return-to-compliance field March 31, 2022

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139412	March 14, 2022	Informal	State Violation/Reminder Notice
9139413	March 14, 2022	Informal	State Public Notification requested
9139414	March 24, 2022	Informal	State Public Notification received
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160183 · Nitrate-Nitrite · Nitrate Rule

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

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139409	November 4, 2021	Informal	State Violation/Reminder Notice
9139410	November 4, 2021	Informal	State Public Notification requested
9139411	November 16, 2021	Informal	State Public Notification received
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160182 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 16, 2021 · EPA return-to-compliance field September 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139406	August 25, 2021	Informal	State Violation/Reminder Notice
9139407	August 25, 2021	Informal	State Public Notification requested
9139408	September 9, 2021	Informal	State Public Notification received
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160181 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 8, 2021 · EPA return-to-compliance field June 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139403	June 1, 2021	Informal	State Violation/Reminder Notice
9139404	June 1, 2021	Informal	State Public Notification requested
9139405	June 17, 2021	Informal	State Public Notification received
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160180 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported June 24, 2021 · EPA return-to-compliance field March 31, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139400	March 25, 2021	Informal	State Violation/Reminder Notice
9139401	March 25, 2021	Informal	State Public Notification requested
9139402	April 2, 2021	Informal	State Public Notification received
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 160178 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 1, 2021 · EPA return-to-compliance field December 31, 2020

7 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9139229	April 6, 2011	Formal	State Administrative/Compliance Order with penalty issued
9139396	December 10, 2020	Informal	State Violation/Reminder Notice
9139397	December 10, 2020	Informal	State Public Notification requested
9139398	December 23, 2020	Informal	State Public Notification received
9139399	January 8, 2021	Formal	State Administrative/Compliance Order with penalty issued
9139415	April 12, 2022	Formal	State Administrative/Compliance Order with penalty issued
9139431	May 8, 2023	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