OK1010401 · Oklahoma

ATOKA

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

Violation records shown: 33
EPA health-based flag: 31
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 2

Counties listed by EPA · Atoka 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 9 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 · Archived
Treatment Technique Precursor RemovalViolation 280017 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3068 May 18, 2023 Formal State Administrative/Compliance Order with penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 280016 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3068 May 18, 2023 Formal State Administrative/Compliance Order with penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 280015 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3068 May 18, 2023 Formal State Administrative/Compliance Order with penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 280014 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3068 May 18, 2023 Formal State Administrative/Compliance Order with penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 280013 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 11, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3068 May 18, 2023 Formal State Administrative/Compliance Order with penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 280011 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported August 11, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3118	June 15, 2026	Informal	State Violation/Reminder Notice
3119	June 15, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 280010 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported August 11, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3118	June 15, 2026	Informal	State Violation/Reminder Notice
3119	June 15, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 280009 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported August 11, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3118	June 15, 2026	Informal	State Violation/Reminder Notice
3119	June 15, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 280008 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported August 11, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3118	June 15, 2026	Informal	State Violation/Reminder Notice
3119	June 15, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 280000 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported May 13, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3116	March 11, 2026	Informal	State Violation/Reminder Notice
3117	March 11, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279999 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported May 13, 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3116	March 11, 2026	Informal	State Violation/Reminder Notice
3117	March 11, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279994 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3112	November 25, 2025	Informal	State Violation/Reminder Notice
3113	November 25, 2025	Informal	State Public Notification requested
3114	January 6, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279993 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3112	November 25, 2025	Informal	State Violation/Reminder Notice
3113	November 25, 2025	Informal	State Public Notification requested
3114	January 6, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279990 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3109	August 20, 2025	Informal	State Violation/Reminder Notice
3110	August 20, 2025	Informal	State Public Notification requested
3115	January 6, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279989 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3109	August 20, 2025	Informal	State Violation/Reminder Notice
3110	August 20, 2025	Informal	State Public Notification requested
3115	January 6, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279988 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3109	August 20, 2025	Informal	State Violation/Reminder Notice
3110	August 20, 2025	Informal	State Public Notification requested
3115	January 6, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279984 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3104	May 23, 2025	Informal	State Violation/Reminder Notice
3105	May 23, 2025	Informal	State Public Notification requested
3107	June 26, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 279978 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3101	December 11, 2024	Formal	State Administrative/Compliance Order without penalty issued
3102	December 11, 2024	Informal	State Public Notification requested
3103	January 10, 2025	Informal	State Public Notification received
3111	August 28, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 279975 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported December 30, 2024 · EPA return-to-compliance field August 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3095	October 21, 2024	Informal	State Violation/Reminder Notice
3096	October 21, 2024	Informal	State Public Notification requested
3097	October 27, 2024	Resolving	State Compliance achieved
3100	December 11, 2024	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279959 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported June 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
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3085	February 9, 2024	Informal	State Violation/Reminder Notice
3086	February 9, 2024	Informal	State Public Notification requested
3108	June 26, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 279958 · Total Haloacetic Acids (HAA5) · 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3085	February 9, 2024	Informal	State Violation/Reminder Notice
3086	February 9, 2024	Informal	State Public Notification requested
3108	June 26, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279954 · CARBON, TOTAL · Stage 1 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3083	November 15, 2023	Informal	State Violation/Reminder Notice
3084	November 15, 2023	Informal	State Public Notification requested

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279950 · 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued
3075	August 18, 2023	Informal	State Violation/Reminder Notice
3076	August 18, 2023	Informal	State Public Notification requested
3081	September 11, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 279948 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance 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
3071	July 6, 2023	Formal	State Administrative/Compliance Order without penalty issued
3072	July 6, 2023	Informal	State Public Notification requested
3073	July 25, 2023	Informal	State Public Notification received
3080	September 5, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 279946 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2023 · period end February 28, 2023 · first reported August 29, 2023 · EPA return-to-compliance field February 28, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3069	June 20, 2023	Formal	State Administrative/Compliance Order without penalty issued
3070	June 20, 2023	Informal	State Public Notification requested
3079	September 5, 2023	Resolving	State Compliance achieved
3082	September 29, 2023	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279942 · CARBON, TOTAL · Stage 1 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
3065	April 26, 2023	Formal	State Administrative/Compliance Order without penalty issued
3066	April 26, 2023	Informal	State Public Notification requested
3067	May 9, 2023	Informal	State Public Notification received
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 279937 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3062	April 12, 2023	Formal	State Administrative/Compliance Order without penalty issued
3063	April 12, 2023	Informal	State Public Notification requested
3064	April 19, 2023	Informal	State Public Notification received
3078	September 5, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 279939 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported May 31, 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
3062	April 12, 2023	Formal	State Administrative/Compliance Order without penalty issued
3063	April 12, 2023	Informal	State Public Notification requested
3064	April 19, 2023	Informal	State Public Notification received
3074	August 7, 2023	Resolving	State no longer subject to Rule
3078	September 5, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 279938 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported May 31, 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
3062	April 12, 2023	Formal	State Administrative/Compliance Order without penalty issued
3063	April 12, 2023	Informal	State Public Notification requested
3064	April 19, 2023	Informal	State Public Notification received
3078	September 5, 2023	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279934 · CARBON, TOTAL · Stage 1 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
3058	February 23, 2023	Formal	State Administrative/Compliance Order without penalty issued
3059	February 23, 2023	Informal	State Public Notification requested
3060	March 8, 2023	Informal	State Public Notification received
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 279933 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced 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
3056	February 16, 2023	Formal	State Administrative/Compliance Order without penalty issued
3057	February 16, 2023	Informal	State Public Notification requested
3061	March 8, 2023	Informal	State Public Notification received
3077	September 5, 2023	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique Precursor RemovalViolation 279919 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3052	November 5, 2021	Formal	State Administrative/Compliance Order without penalty issued
3053	November 5, 2021	Informal	State Public Notification requested
3054	December 2, 2021	Informal	State Public Notification received
3068	May 18, 2023	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Resolved

Monitoring, RegularViolation 279915 · Asbestos · Inorganic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3047	February 12, 2021	Informal	State Violation/Reminder Notice
3048	February 12, 2021	Informal	State Public Notification requested
3050	April 20, 2021	Informal	State Public Notification received
3051	September 9, 2021	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