OK2000806 · Oklahoma

APACHE

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

Violation records shown: 32
EPA health-based flag: 5
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 27

Counties listed by EPA · Caddo 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 29 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 276937 · Nitrate-Nitrite · Nitrate Rule

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
9093690	January 23, 2026	Informal	State Public Notification received
9093688	February 6, 2026	Formal	State Administrative/Compliance Order without penalty issued
9093689	February 6, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 276936 · Nitrate-Nitrite · Nitrate Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093686	October 27, 2025	Formal	State Administrative/Compliance Order without penalty issued
9093687	October 27, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276934 · Gross Beta Particle Activity · Radionuclides and Revised Rad 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
9093683	August 13, 2025	Informal	State Violation/Reminder Notice
9093684	August 13, 2025	Informal	State Public Notification requested
9093685	October 28, 2025	Resolving	State Compliance achieved
9093693	June 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276933 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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
9093683	August 13, 2025	Informal	State Violation/Reminder Notice
9093684	August 13, 2025	Informal	State Public Notification requested
9093685	October 28, 2025	Resolving	State Compliance achieved
9093693	June 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276932 · Combined Uranium · Radionuclides and Revised Rad 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
9093683	August 13, 2025	Informal	State Violation/Reminder Notice
9093684	August 13, 2025	Informal	State Public Notification requested
9093685	October 28, 2025	Resolving	State Compliance achieved
9093693	June 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276931 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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
9093683	August 13, 2025	Informal	State Violation/Reminder Notice
9093684	August 13, 2025	Informal	State Public Notification requested
9093685	October 28, 2025	Resolving	State Compliance achieved
9093693	June 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 276928 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2025 · period end April 30, 2025 · first reported August 13, 2025 · EPA return-to-compliance field April 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093678	June 27, 2025	Informal	State Violation/Reminder Notice
9093679	June 27, 2025	Informal	State Public Notification requested
9093680	July 8, 2025	Resolving	State Compliance achieved
9093694	June 2, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 276923 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported May 15, 2025 · 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
9093673	January 31, 2025	Informal	State Public Notification received
9093671	February 6, 2025	Formal	State Administrative/Compliance Order without penalty issued
9093672	February 6, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

LSL ReportingViolation 276930 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end April 13, 2026 · first reported August 13, 2025 · EPA return-to-compliance field April 13, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093682	July 11, 2025	Informal	State Violation/Reminder Notice
9999900000000000001	March 12, 2026	Formal	Federal Final Administrative Order issued
9093692	April 13, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 276929 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end April 13, 2026 · first reported August 13, 2025 · EPA return-to-compliance field April 13, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093681	July 11, 2025	Informal	State Violation/Reminder Notice
9093695	July 11, 2025	Informal	State Public Notification requested
9999900000000000001	March 12, 2026	Formal	Federal Final Administrative Order issued
9093691	April 13, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 276921 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 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
9093667	November 22, 2024	Informal	State Violation/Reminder Notice
9093668	November 22, 2024	Informal	State Public Notification requested
9093670	December 23, 2024	Resolving	State Compliance achieved
9093675	May 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276919 · Gross Beta Particle Activity · Radionuclides and Revised Rad 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
9093659	August 21, 2024	Informal	State Violation/Reminder Notice
9093666	August 21, 2024	Informal	State Public Notification requested
9093669	December 23, 2024	Resolving	State Compliance achieved
9093674	May 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276918 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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
9093659	August 21, 2024	Informal	State Violation/Reminder Notice
9093666	August 21, 2024	Informal	State Public Notification requested
9093669	December 23, 2024	Resolving	State Compliance achieved
9093674	May 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276917 · Combined Uranium · Radionuclides and Revised Rad 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
9093659	August 21, 2024	Informal	State Violation/Reminder Notice
9093666	August 21, 2024	Informal	State Public Notification requested
9093669	December 23, 2024	Resolving	State Compliance achieved
9093674	May 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276916 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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
9093659	August 21, 2024	Informal	State Violation/Reminder Notice
9093666	August 21, 2024	Informal	State Public Notification requested
9093669	December 23, 2024	Resolving	State Compliance achieved
9093674	May 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276915 · Gross Beta Particle Activity · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093654	November 30, 2023	Informal	State Violation/Reminder Notice
9093655	November 30, 2023	Informal	State Public Notification requested
9093656	December 12, 2023	Informal	State Public Notification received
9093657	January 12, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276914 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093654	November 30, 2023	Informal	State Violation/Reminder Notice
9093655	November 30, 2023	Informal	State Public Notification requested
9093656	December 12, 2023	Informal	State Public Notification received
9093657	January 12, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276913 · Combined Uranium · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093654	November 30, 2023	Informal	State Violation/Reminder Notice
9093655	November 30, 2023	Informal	State Public Notification requested
9093656	December 12, 2023	Informal	State Public Notification received
9093657	January 12, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276912 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093654	November 30, 2023	Informal	State Violation/Reminder Notice
9093655	November 30, 2023	Informal	State Public Notification requested
9093656	December 12, 2023	Informal	State Public Notification received
9093657	January 12, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276911 · Gross Beta Particle Activity · Radionuclides and Revised Rad 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
9093637	March 14, 2023	Informal	State Violation/Reminder Notice
9093638	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093653	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276910 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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
9093637	March 14, 2023	Informal	State Violation/Reminder Notice
9093638	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093653	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276909 · Combined Uranium · Radionuclides and Revised Rad 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
9093637	March 14, 2023	Informal	State Violation/Reminder Notice
9093638	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093653	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276908 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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
9093637	March 14, 2023	Informal	State Violation/Reminder Notice
9093638	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093653	August 1, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 276903 · Combined Uranium · Radionuclides and Revised Rad Rule

Noncompliance period start July 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
9093634	February 3, 2023	Formal	State Administrative/Compliance Order without penalty issued
9093635	February 3, 2023	Informal	State Public Notification requested
9093636	February 27, 2023	Informal	State Public Notification received
9093658	February 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276901 · Gross Beta Particle Activity · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093631	August 30, 2022	Informal	State Violation/Reminder Notice
9093632	August 30, 2022	Informal	State Public Notification requested
9093633	November 1, 2022	Resolving	State Compliance achieved
9093652	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276900 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093631	August 30, 2022	Informal	State Violation/Reminder Notice
9093632	August 30, 2022	Informal	State Public Notification requested
9093633	November 1, 2022	Resolving	State Compliance achieved
9093652	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276899 · Combined Uranium · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093631	August 30, 2022	Informal	State Violation/Reminder Notice
9093632	August 30, 2022	Informal	State Public Notification requested
9093633	November 1, 2022	Resolving	State Compliance achieved
9093652	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276898 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9093631	August 30, 2022	Informal	State Violation/Reminder Notice
9093632	August 30, 2022	Informal	State Public Notification requested
9093633	November 1, 2022	Resolving	State Compliance achieved
9093652	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276906 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 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
9093643	March 14, 2023	Informal	State Violation/Reminder Notice
9093644	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093649	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276905 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 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
9093641	March 14, 2023	Informal	State Violation/Reminder Notice
9093642	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093650	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276904 · Nitrate-Nitrite · Nitrate Rule

Noncompliance period start January 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
9093639	March 14, 2023	Informal	State Violation/Reminder Notice
9093640	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093651	August 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 276907 · Nitrite · Nitrate Rule

Noncompliance period start January 1, 2020 · 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
9093645	March 14, 2023	Informal	State Violation/Reminder Notice
9093646	March 14, 2023	Informal	State Public Notification requested
9093647	June 7, 2023	Resolving	State Compliance achieved
9093648	August 1, 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