LA1015023 · Louisiana
ST MARYS WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 19
- EPA health-based flag
- 10
- Health-based records unresolved in this snapshot
- 3
- Monitoring and reporting records
- 6
Counties listed by EPA · Bossier Parish, Louisiana
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 14 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,125 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Addressed by formal action
LSL InventoryViolation 4085173 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported February 27, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 May 22, 2026 Formal Federal Final Administrative Order issued EPA health-based flag · Addressed by formal action
Failure To Address DeficiencyViolation 4085161 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · first reported May 16, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900738 November 13, 2025 Informal State Public Notification received 4900745 May 6, 2026 Informal State Site Visit for enforcement purposes EPA health-based flag · Unaddressed by formal action
Treatment Technique, Level 1 Assessment (RTCR)Violation 4085160 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 14, 2023 · first reported March 27, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900717 March 16, 2023 Informal State Violation/Reminder Notice 4900718 March 16, 2023 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4085177 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 29, 2025 · period end August 26, 2025 · first reported August 20, 2025 · EPA return-to-compliance field August 26, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900730 August 26, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 4085174 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900723 March 24, 2025 Informal State Violation/Reminder Notice 4900724 March 24, 2025 Informal State Public Notification requested 4900729 August 1, 2025 Resolving State Compliance achieved 4900731 September 8, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4085176 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 20, 2024 · period end October 14, 2025 · first reported August 20, 2025 · EPA return-to-compliance field October 14, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900728 July 22, 2025 Informal State Violation/Reminder Notice 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900734 October 14, 2025 Resolving State Compliance achieved Monitoring or reporting · Addressed by formal action
LSL ReportingViolation 4085172 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported February 27, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 May 22, 2026 Formal Federal Final Administrative Order issued Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4085169 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start May 4, 2023 · period end October 29, 2025 · first reported September 7, 2023 · EPA return-to-compliance field October 29, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900721 August 16, 2023 Informal State Violation/Reminder Notice 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900737 October 29, 2025 Resolving State Compliance achieved 4900736 November 10, 2025 Informal State Site Visit for enforcement purposes Other or unclassified · Addressed by formal action
Public Notification Violation for NPDWR ViolationViolation 4085167 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 21, 2023 · first reported September 7, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900736 November 10, 2025 Informal State Site Visit for enforcement purposes EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085166 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · period end April 21, 2026 · first reported May 16, 2023 · EPA return-to-compliance field April 21, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900738 November 13, 2025 Informal State Public Notification received 4900744 April 21, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085165 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · period end April 21, 2026 · first reported May 16, 2023 · EPA return-to-compliance field April 21, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900738 November 13, 2025 Informal State Public Notification received 4900744 April 21, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085164 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · period end April 21, 2026 · first reported May 16, 2023 · EPA return-to-compliance field April 21, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900738 November 13, 2025 Informal State Public Notification received 4900744 April 21, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085163 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · period end April 21, 2026 · first reported May 16, 2023 · EPA return-to-compliance field April 21, 2026
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900738 November 13, 2025 Informal State Public Notification received 4900740 December 12, 2025 Informal State Site Visit for enforcement purposes 4900744 April 21, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085162 · Groundwater Rule · Ground Water RuleNoncompliance period start March 23, 2023 · period end April 21, 2026 · first reported May 16, 2023 · EPA return-to-compliance field April 21, 2026
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900719 March 29, 2023 Informal State Violation/Reminder Notice 4900720 March 29, 2023 Informal State Public Notification requested 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900738 November 13, 2025 Informal State Public Notification received 4900744 April 21, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4085158 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start April 5, 2022 · period end October 14, 2025 · first reported June 29, 2022 · EPA return-to-compliance field October 14, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900714 June 27, 2022 Informal State Violation/Reminder Notice 4900732 October 3, 2025 Formal State Administrative/Compliance Order without penalty issued 4900733 October 14, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4085155 · Groundwater Rule · Ground Water RuleNoncompliance period start March 1, 2021 · period end April 9, 2021 · first reported May 25, 2021 · EPA return-to-compliance field April 9, 2021
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900701 March 5, 2021 Informal State Violation/Reminder Notice 4900702 March 5, 2021 Informal State Public Notification requested 4900708 April 9, 2021 Resolving State Compliance achieved 4900709 April 9, 2021 Resolving State Compliance achieved 4900707 August 12, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 4085137 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2017 · period end October 28, 2022 · first reported September 25, 2017 · EPA return-to-compliance field October 28, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900664 August 23, 2017 Informal State Violation/Reminder Notice 4900666 September 14, 2017 Resolving State Compliance achieved 4900715 October 28, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 4085122 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 31, 2015 · period end October 28, 2022 · first reported March 9, 2015 · EPA return-to-compliance field October 28, 2022
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900632 February 19, 2015 Informal State Violation/Reminder Notice 4900656 May 11, 2015 Resolving State Compliance achieved 4900653 May 19, 2016 Formal State Administrative/Compliance Order without penalty issued 4900657 August 24, 2016 Informal State Site Visit for enforcement purposes 4900658 January 27, 2017 Informal State Site Visit for enforcement purposes 4900715 October 28, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 4085116 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2014 · period end October 28, 2022 · first reported November 17, 2014 · EPA return-to-compliance field October 28, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4900653 May 19, 2016 Formal State Administrative/Compliance Order without penalty issued 4900655 August 8, 2016 Resolving State Compliance achieved 4900657 August 24, 2016 Informal State Site Visit for enforcement purposes 4900658 January 27, 2017 Informal State Site Visit for enforcement purposes 4900715 October 28, 2022 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