OK1010815 · Oklahoma

TISHOMINGO MUNICIPAL AUTHORITY

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

Violation records shown: 36
EPA health-based flag: 28
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 7

Counties listed by EPA · Johnston 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 19 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 (SWTR and GWR)Violation 268848 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start March 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
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268855 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported August 11, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268851 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported August 11, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268847 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported August 11, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268854 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported August 11, 2026 · EPA return-to-compliance field January 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Single Turbidity Exceed (Enhanced SWTR)Violation 268852 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported August 11, 2026 · EPA return-to-compliance field January 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268846 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported August 11, 2026 · EPA return-to-compliance field January 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268853 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start December 1, 2025 · period end December 31, 2025 · first reported August 11, 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
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268850 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2025 · period end December 31, 2025 · first reported August 11, 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
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268845 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start December 1, 2025 · period end December 31, 2025 · first reported August 11, 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
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268849 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported August 11, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268844 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported August 11, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210458	June 2, 2026	Formal	State Administrative/Compliance Order without penalty issued
9210459	June 2, 2026	Informal	State Public Notification requested
9210460	June 12, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 268831 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field November 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210453	January 27, 2026	Informal	State Violation/Reminder Notice
9210454	January 27, 2026	Informal	State Public Notification requested
9210456	March 5, 2026	Resolving	State Compliance achieved
9210461	June 12, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 268830 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 18, 2026 · EPA return-to-compliance field November 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210453	January 27, 2026	Informal	State Violation/Reminder Notice
9210454	January 27, 2026	Informal	State Public Notification requested
9210455	March 5, 2026	Resolving	State Compliance achieved
9210461	June 12, 2026	Informal	State Public Notification received

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 268826 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2025 · period end August 29, 2025 · first reported November 14, 2025 · EPA return-to-compliance field August 29, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210462	August 19, 2025	Informal	State Violation/Reminder Notice
9210451	August 29, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 268825 · 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
9210444	August 13, 2025	Informal	State Violation/Reminder Notice
9210445	August 13, 2025	Informal	State Public Notification requested
9210449	September 4, 2025	Informal	State Public Notification received
9210446	September 17, 2025	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268822 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210441	May 8, 2025	Informal	State Public Notification requested
9210442	May 8, 2025	Formal	State Administrative/Compliance Order without penalty issued
9210450	September 4, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268821 · Surface Water Treatment Rule · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210439	April 3, 2025	Informal	State Public Notification requested
9210440	April 3, 2025	Formal	State Administrative/Compliance Order without penalty issued
9210448	September 4, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268820 · Surface Water Treatment Rule · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210439	April 3, 2025	Informal	State Public Notification requested
9210440	April 3, 2025	Formal	State Administrative/Compliance Order without penalty issued
9210448	September 4, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268819 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210439	April 3, 2025	Informal	State Public Notification requested
9210440	April 3, 2025	Formal	State Administrative/Compliance Order without penalty issued
9210448	September 4, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 268818 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end July 29, 2025 · first reported May 15, 2025 · EPA return-to-compliance field July 29, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210437	March 6, 2025	Informal	State Violation/Reminder Notice
9210438	March 6, 2025	Informal	State Public Notification requested
9210443	July 29, 2025	Resolving	State Compliance achieved
9210452	September 4, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 268817 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported February 25, 2025 · EPA return-to-compliance field November 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210435	January 7, 2025	Informal	State Public Notification requested
9210436	January 7, 2025	Formal	State Administrative/Compliance Order without penalty issued
9210447	September 4, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 268814 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210428	August 30, 2024	Formal	State Administrative/Compliance Order without penalty issued
9210429	August 30, 2024	Informal	State Public Notification requested
9210432	October 2, 2024	Informal	State Public Notification received
9210434	December 30, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 268815 · Surface Water Treatment Rule · 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
9210428	August 30, 2024	Formal	State Administrative/Compliance Order without penalty issued
9210429	August 30, 2024	Informal	State Public Notification requested
9210432	October 2, 2024	Informal	State Public Notification received
9210434	December 30, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 268813 · 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
9210428	August 30, 2024	Formal	State Administrative/Compliance Order without penalty issued
9210429	August 30, 2024	Informal	State Public Notification requested
9210432	October 2, 2024	Informal	State Public Notification received
9210434	December 30, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268812 · 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
9210428	August 30, 2024	Formal	State Administrative/Compliance Order without penalty issued
9210429	August 30, 2024	Informal	State Public Notification requested
9210432	October 2, 2024	Informal	State Public Notification received
9210434	December 30, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268807 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start April 1, 2022 · period end April 30, 2022 · first reported September 26, 2022 · EPA return-to-compliance field April 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210424	June 22, 2022	Formal	State Administrative/Compliance Order without penalty issued
9210425	June 22, 2022	Informal	State Public Notification requested
9210426	September 27, 2023	Resolving	State Compliance achieved
9210433	October 2, 2024	Informal	State Public Notification received

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268806 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210424	June 22, 2022	Formal	State Administrative/Compliance Order without penalty issued
9210425	June 22, 2022	Informal	State Public Notification requested
9210426	September 27, 2023	Resolving	State Compliance achieved
9210433	October 2, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 268802 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2021 · period end November 30, 2021 · first reported February 17, 2022 · EPA return-to-compliance field November 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210414	January 19, 2022	Informal	State Violation/Reminder Notice
9210415	January 19, 2022	Informal	State Public Notification requested
9210417	March 2, 2022	Resolving	State Compliance achieved
9210421	April 14, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 268801 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 17, 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
9210412	January 19, 2022	Informal	State Violation/Reminder Notice
9210413	January 19, 2022	Informal	State Public Notification requested
9210417	March 2, 2022	Resolving	State Compliance achieved
9210420	April 14, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268799 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start March 1, 2021 · period end March 31, 2021 · first reported November 16, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210409	November 5, 2021	Formal	State Administrative/Compliance Order without penalty issued
9210410	November 5, 2021	Informal	State Public Notification requested
9210411	December 15, 2021	Informal	State Public Notification received
9210416	February 22, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 268797 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start March 1, 2021 · period end March 31, 2021 · first reported November 16, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210409	November 5, 2021	Formal	State Administrative/Compliance Order without penalty issued
9210410	November 5, 2021	Informal	State Public Notification requested
9210411	December 15, 2021	Informal	State Public Notification received
9210416	February 22, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 268798 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2021 · period end February 28, 2021 · first reported November 16, 2021 · EPA return-to-compliance field February 28, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210409	November 5, 2021	Formal	State Administrative/Compliance Order without penalty issued
9210410	November 5, 2021	Informal	State Public Notification requested
9210411	December 15, 2021	Informal	State Public Notification received
9210416	February 22, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 268804 · Asbestos · Inorganic Chemicals

Noncompliance period start January 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
9210418	March 1, 2022	Informal	State Violation/Reminder Notice
9210419	March 1, 2022	Informal	State Public Notification requested
9210422	April 14, 2022	Informal	State Public Notification received
9210423	May 9, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved
Treatment Technique Precursor RemovalViolation 268843 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2010 · period end June 30, 2010 · first reported May 13, 2026 · EPA return-to-compliance field June 30, 2010

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9210457 April 1, 2026 Resolving State no longer subject to Rule
EPA health-based flag · Resolved
Treatment Technique Precursor RemovalViolation 268842 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start October 1, 2008 · period end December 31, 2008 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2008

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9210457 April 1, 2026 Resolving State no longer subject to Rule

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210457	April 1, 2026	Resolving	State no longer subject to Rule

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9210457	April 1, 2026	Resolving	State no longer subject to Rule

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