062004108 · Oklahoma

Sac & Fox Nation

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

Violation records shown: 26
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 26

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803299612025 · Styrene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803299212025 · Ethylbenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803299112025 · Toluene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803299012025 · Benzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298912025 · CHLOROBENZENE · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298712025 · Tetrachloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298512025 · 1,1,2-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298412025 · Trichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298312025 · 1,2-Dichloropropane · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298212025 · Carbon tetrachloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298112025 · 1,1,1-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803298012025 · 1,2-Dichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803297912025 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803297712025 · 1,1-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803297612025 · Vinyl chloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803296912025 · p-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803296812025 · o-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803296412025 · DICHLOROMETHANE · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803295512025 · Xylenes, Total · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803238012025 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803237812025 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 200410803103812025 · Nitrate-Nitrite · Nitrate Rule
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.

Monitoring or reporting · Resolved

Monitoring, RegularViolation 200410803103812023 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported June 18, 2025 · EPA return-to-compliance field December 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2004108IE022224511	February 22, 2024	Informal	Federal Public Notification requested
2004108OX1231246059	December 31, 2024	Resolving	Federal Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 200410803103812022 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported June 18, 2025 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2004108OX0213235346	February 13, 2023	Resolving	Federal Compliance achieved
2004108IE022823620	February 28, 2023	Informal	Federal Public Notification requested

Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 17 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2018 · period end August 31, 2020 · first reported March 8, 2021 · EPA return-to-compliance field August 31, 2020
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 16 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2018 · period end August 31, 2020 · first reported March 8, 2021 · EPA return-to-compliance field August 31, 2020
No linked action row appears in the records shown.

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