OK1021101 · Oklahoma

BLACKWELL MUNICIPAL AUTHORITY

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

Violation records shown: 13
EPA health-based flag: 10
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 3

Counties listed by EPA · Kay 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 13 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164294 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported November 14, 2025 · EPA return-to-compliance field July 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160673	September 12, 2025	Informal	State Public Notification requested
9160674	September 12, 2025	Formal	State Administrative/Compliance Order without penalty issued
9160675	October 8, 2025	Informal	State Public Notification received
9160679	January 20, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164295 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start June 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
9160673	September 12, 2025	Informal	State Public Notification requested
9160674	September 12, 2025	Formal	State Administrative/Compliance Order without penalty issued
9160675	October 8, 2025	Informal	State Public Notification received
9160679	January 20, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 164293 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160671	July 23, 2025	Informal	State Violation/Reminder Notice
9160672	July 23, 2025	Informal	State Public Notification requested
9160676	October 28, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 164292 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160671	July 23, 2025	Informal	State Violation/Reminder Notice
9160672	July 23, 2025	Informal	State Public Notification requested
9160677	October 28, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 164291 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2025 · period end May 6, 2025 · first reported August 13, 2025 · EPA return-to-compliance field May 6, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9160667 May 6, 2025 Resolving State Compliance achieved
9160666 June 3, 2025 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160667	May 6, 2025	Resolving	State Compliance achieved
9160666	June 3, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164290 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160663	May 8, 2025	Informal	State Public Notification requested
9160664	May 8, 2025	Formal	State Administrative/Compliance Order without penalty issued
9160668	June 12, 2025	Resolving	State Compliance achieved
9160669	June 18, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 164282 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start June 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
9160653	August 15, 2024	Informal	State Public Notification requested
9160654	August 15, 2024	Formal	State Administrative/Compliance Order without penalty issued
9160658	September 6, 2024	Informal	State Public Notification received
9160659	October 29, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 164284 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported September 30, 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
9160655	September 17, 2024	Informal	State Public Notification requested
9160656	September 17, 2024	Formal	State Administrative/Compliance Order without penalty issued
9160657	October 3, 2024	Informal	State Public Notification received
9160660	October 29, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164283 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported September 30, 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
9160655	September 17, 2024	Informal	State Public Notification requested
9160656	September 17, 2024	Formal	State Administrative/Compliance Order without penalty issued
9160657	October 3, 2024	Informal	State Public Notification received
9160660	October 29, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 164273 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160642	April 12, 2023	Formal	State Administrative/Compliance Order without penalty issued
9160643	April 12, 2023	Informal	State Public Notification requested
9160645	April 26, 2023	Informal	State Public Notification received
9160651	June 23, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 164270 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160633	February 23, 2023	Formal	State Administrative/Compliance Order without penalty issued
9160634	February 23, 2023	Informal	State Public Notification requested
9160636	March 21, 2023	Informal	State Public Notification received
9160650	June 23, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 164271 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start September 1, 2022 · period end September 30, 2022 · first reported March 27, 2023 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160631	February 23, 2023	Formal	State Administrative/Compliance Order without penalty issued
9160632	February 23, 2023	Informal	State Public Notification requested
9160635	March 14, 2023	Informal	State Public Notification received
9160649	June 23, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164266 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported March 27, 2023 · EPA return-to-compliance field May 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9160646	May 23, 2023	Informal	State Violation/Reminder Notice
9160647	May 23, 2023	Informal	State Public Notification requested
9160648	May 23, 2023	Resolving	State Compliance achieved
9160652	July 6, 2023	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