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LA1099004 · Louisiana

ST MARTIN WATER DISTRICT 4 - CATAHOULA

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

Violation records shown: 9
EPA health-based flag: 7
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 1

Counties listed by EPA · St. Martin Parish, Louisiana

Open the EPA system record

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 2,263 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 627 · Arsenic · Arsenic 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1094	May 22, 2026	Informal	State Violation/Reminder Notice
1095	May 22, 2026	Informal	State Public Notification requested
1107	June 11, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 621 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 14, 2025 · 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
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1078	October 28, 2025	Informal	State Violation/Reminder Notice
1079	October 28, 2025	Informal	State Public Notification requested
1081	November 26, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 617 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 20, 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
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1066	June 13, 2025	Informal	State Violation/Reminder Notice
1067	June 13, 2025	Informal	State Public Notification requested
1082	November 26, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 614 · Arsenic · Arsenic Rule

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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1057	April 1, 2025	Informal	State Violation/Reminder Notice
1058	April 1, 2025	Informal	State Public Notification requested
1060	April 22, 2025	Informal	State Public Notification received
1061	April 28, 2025	Informal	State Site Visit for enforcement purposes

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 608 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 26, 2025 · EPA return-to-compliance field December 31, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1043	December 4, 2024	Informal	State Violation/Reminder Notice
1044	December 4, 2024	Informal	State Public Notification requested
1047	December 27, 2024	Informal	State Public Notification received
1061	April 28, 2025	Informal	State Site Visit for enforcement purposes

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 606 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 23, 2024 · EPA return-to-compliance field June 30, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
1034	July 23, 2024	Informal	State Violation/Reminder Notice
1035	July 23, 2024	Informal	State Public Notification requested
1036	August 14, 2024	Informal	State Public Notification received
1061	April 28, 2025	Informal	State Site Visit for enforcement purposes

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 588 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 30, 2022

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
859	March 30, 2012	Formal	State Administrative/Compliance Order without penalty issued
988	October 13, 2022	Informal	State Violation/Reminder Notice
989	October 13, 2022	Informal	State Public Notification requested
990	October 21, 2022	Informal	State Public Notification received
1003	July 12, 2023	Resolving	State Compliance achieved
1061	April 28, 2025	Informal	State Site Visit for enforcement purposes

Monitoring or reporting · Unaddressed by formal action
Lead Consumer NoticeViolation 578 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 17, 2021 · first reported May 25, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
964 February 22, 2021 Informal State Violation/Reminder Notice

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 509 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start April 9, 2011 · period end May 31, 2023 · first reported September 1, 2011 · EPA return-to-compliance field May 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
823	May 17, 2011	Informal	State Violation/Reminder Notice
861	August 22, 2012	Informal	State Site Visit for enforcement purposes
897	April 26, 2017	Informal	State Site Visit for enforcement purposes
1026	May 31, 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