OK3002157 · Oklahoma

DELAWARE CO RWSG&SWM DISTRICT 11

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

Violation records shown: 24
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 8

Counties listed by EPA · Delaware 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 23 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 510 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Unaddressed by formal action

Follow-up Or Routine LCR Tap M/RViolation 32 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2025 · first reported February 18, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
58	November 21, 2025	Informal	State Violation/Reminder Notice
59	November 21, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved
LSL ReportingViolation 31 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · period end March 11, 2026 · first reported August 13, 2025 · EPA return-to-compliance field March 11, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
57 July 11, 2025 Informal State Violation/Reminder Notice
61 March 11, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
57	July 11, 2025	Informal	State Violation/Reminder Notice
61	March 11, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 30 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end March 11, 2026 · first reported August 13, 2025 · EPA return-to-compliance field March 11, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
56	July 11, 2025	Informal	State Violation/Reminder Notice
62	July 11, 2025	Informal	State Public Notification requested
60	March 11, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 29 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2024 · period end July 9, 2024 · first reported December 30, 2024 · EPA return-to-compliance field July 9, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
55 July 9, 2024 Resolving State Compliance achieved
54 July 12, 2024 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	July 9, 2024	Resolving	State Compliance achieved
54	July 12, 2024	Informal	State Violation/Reminder Notice

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 26 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 2, 2022 · period end February 12, 2023 · first reported March 27, 2023 · EPA return-to-compliance field February 12, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 18, 2023	Informal	State Violation/Reminder Notice
37	February 3, 2023	Formal	State Administrative/Compliance Order without penalty issued
38	February 12, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 28 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start August 24, 2022 · period end May 2, 2023 · first reported March 27, 2023 · EPA return-to-compliance field May 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
37	February 3, 2023	Formal	State Administrative/Compliance Order without penalty issued
52	May 2, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 25 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2022 · period end May 31, 2022 · first reported September 26, 2022 · EPA return-to-compliance field May 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
32	July 28, 2022	Informal	State Violation/Reminder Notice
33	July 28, 2022	Informal	State Public Notification requested
34	August 2, 2022	Resolving	State Compliance achieved
53	September 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 24 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts 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
32	July 28, 2022	Informal	State Violation/Reminder Notice
33	July 28, 2022	Informal	State Public Notification requested
34	August 2, 2022	Resolving	State Compliance achieved
53	September 1, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 23 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2021 · period end December 31, 2021 · first reported May 19, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
29	March 1, 2022	Informal	State Violation/Reminder Notice
30	March 1, 2022	Informal	State Public Notification requested
31	April 15, 2022	Resolving	State Compliance achieved
47	February 12, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 22 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported May 19, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
29	March 1, 2022	Informal	State Violation/Reminder Notice
30	March 1, 2022	Informal	State Public Notification requested
31	April 15, 2022	Resolving	State Compliance achieved
47	February 12, 2023	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 21 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end September 14, 2022 · first reported February 17, 2022 · EPA return-to-compliance field September 14, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
27 January 21, 2022 Informal State Violation/Reminder Notice
35 September 14, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
27	January 21, 2022	Informal	State Violation/Reminder Notice
35	September 14, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 20 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 2, 2020 · period end February 12, 2023 · first reported February 17, 2022 · EPA return-to-compliance field February 12, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25	January 5, 2022	Informal	State Violation/Reminder Notice
37	February 3, 2023	Formal	State Administrative/Compliance Order without penalty issued
39	February 12, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 18 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end June 30, 2021 · first reported September 8, 2021 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
23	August 13, 2021	Informal	State Violation/Reminder Notice
24	August 13, 2021	Informal	State Public Notification requested
28	March 7, 2022	Resolving	State Compliance achieved
48	February 12, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 17 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end June 30, 2021 · first reported September 8, 2021 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
23	August 13, 2021	Informal	State Violation/Reminder Notice
24	August 13, 2021	Informal	State Public Notification requested
28	March 7, 2022	Resolving	State Compliance achieved
48	February 12, 2023	Informal	State Public Notification received

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 19 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start December 2, 2019 · period end February 12, 2023 · first reported February 17, 2022 · EPA return-to-compliance field February 12, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26	January 5, 2022	Informal	State Violation/Reminder Notice
37	February 3, 2023	Formal	State Administrative/Compliance Order without penalty issued
40	February 12, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 14 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2019 · period end April 10, 2023 · first reported December 15, 2020 · EPA return-to-compliance field April 10, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
21	November 19, 2020	Formal	State Administrative/Compliance Order without penalty issued
49	April 10, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 15 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2018 · period end May 2, 2023 · first reported December 15, 2020 · EPA return-to-compliance field May 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
21	November 19, 2020	Formal	State Administrative/Compliance Order without penalty issued
50	May 2, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 16 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2017 · period end May 2, 2023 · first reported December 15, 2020 · EPA return-to-compliance field May 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
21	November 19, 2020	Formal	State Administrative/Compliance Order without penalty issued
51	May 2, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 13 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2017 · period end February 12, 2023 · first reported December 12, 2017 · EPA return-to-compliance field February 12, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
18 November 17, 2017 Informal State Violation/Reminder Notice
41 February 12, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 12 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2016 · period end February 12, 2023 · first reported March 24, 2017 · EPA return-to-compliance field February 12, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
17 January 3, 2017 Informal State Violation/Reminder Notice
42 February 12, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 11 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2015 · period end February 12, 2023 · first reported November 16, 2015 · EPA return-to-compliance field February 12, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
16 February 19, 2016 Informal State Violation/Reminder Notice
43 February 12, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 7 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2014 · period end February 12, 2023 · first reported February 18, 2015 · EPA return-to-compliance field February 12, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
19 January 14, 2015 Informal State Violation/Reminder Notice
44 February 12, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 8 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2013 · period end February 12, 2023 · first reported February 18, 2015 · EPA return-to-compliance field February 12, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
20 January 14, 2015 Informal State Violation/Reminder Notice
45 February 12, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 3 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2012 · period end February 12, 2023 · first reported May 26, 2015 · EPA return-to-compliance field February 12, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
46 February 12, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	November 17, 2017	Informal	State Violation/Reminder Notice
41	February 12, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
17	January 3, 2017	Informal	State Violation/Reminder Notice
42	February 12, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
16	February 19, 2016	Informal	State Violation/Reminder Notice
43	February 12, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
19	January 14, 2015	Informal	State Violation/Reminder Notice
44	February 12, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
20	January 14, 2015	Informal	State Violation/Reminder Notice
45	February 12, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
46	February 12, 2023	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