LA1039005 · Louisiana
TOWN OF MAMOU WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 17
- EPA health-based flag
- 13
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 1
Counties listed by EPA · Evangeline 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 17 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 · Resolved
Maximum Contaminant Level Violation, AverageViolation 212 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported March 27, 2023 · EPA return-to-compliance field March 31, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 582 February 28, 2023 Informal State Violation/Reminder Notice 583 February 28, 2023 Informal State Public Notification requested 588 March 28, 2023 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 210 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 10, 2023 · EPA return-to-compliance field December 31, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 578 January 5, 2023 Informal State Violation/Reminder Notice 579 January 5, 2023 Informal State Public Notification requested 581 February 2, 2023 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 209 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 21, 2022 · period end February 12, 2024 · first reported November 16, 2022 · EPA return-to-compliance field February 12, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 577 October 10, 2022 Informal State Violation/Reminder Notice 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 207 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported October 7, 2022 · EPA return-to-compliance field September 30, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 573 September 15, 2022 Informal State Violation/Reminder Notice 574 September 15, 2022 Informal State Public Notification requested 584 February 28, 2023 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 206 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported October 7, 2022 · EPA return-to-compliance field September 30, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 573 September 15, 2022 Informal State Violation/Reminder Notice 574 September 15, 2022 Informal State Public Notification requested 584 February 28, 2023 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 203 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported June 29, 2022 · EPA return-to-compliance field June 30, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 569 June 15, 2022 Informal State Violation/Reminder Notice 570 June 15, 2022 Informal State Public Notification requested 610 February 28, 2023 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 199 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported March 28, 2022 · EPA return-to-compliance field March 31, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 565 March 17, 2022 Informal State Violation/Reminder Notice 566 March 17, 2022 Informal State Public Notification requested 576 September 27, 2022 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 198 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported March 28, 2022 · EPA return-to-compliance field March 31, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 565 March 17, 2022 Informal State Violation/Reminder Notice 566 March 17, 2022 Informal State Public Notification requested 576 September 27, 2022 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 192 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported December 20, 2021 · EPA return-to-compliance field December 31, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 559 December 8, 2021 Informal State Site Visit for enforcement purposes 555 December 14, 2021 Informal State Violation/Reminder Notice 556 December 14, 2021 Informal State Public Notification requested 596 February 12, 2024 Resolving State Compliance achieved 604 January 13, 2025 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 191 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported December 20, 2021 · EPA return-to-compliance field December 31, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 559 December 8, 2021 Informal State Site Visit for enforcement purposes 555 December 14, 2021 Informal State Violation/Reminder Notice 556 December 14, 2021 Informal State Public Notification requested 596 February 12, 2024 Resolving State Compliance achieved 604 January 13, 2025 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 187 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 21, 2021 · period end October 25, 2021 · first reported November 16, 2021 · EPA return-to-compliance field October 25, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 551 October 8, 2021 Informal State Violation/Reminder Notice 608 October 25, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 188 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end June 8, 2023 · first reported November 16, 2021 · EPA return-to-compliance field June 8, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 552 November 2, 2021 Informal State Violation/Reminder Notice 590 June 8, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 186 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 16, 2021 · EPA return-to-compliance field September 30, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 549 September 30, 2021 Informal State Violation/Reminder Notice 550 September 30, 2021 Informal State Public Notification requested 559 December 8, 2021 Informal State Site Visit for enforcement purposes 562 February 1, 2022 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 183 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 23, 2021 · EPA return-to-compliance field June 30, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 545 June 15, 2021 Informal State Violation/Reminder Notice 546 June 15, 2021 Informal State Public Notification requested 559 December 8, 2021 Informal State Site Visit for enforcement purposes 609 January 18, 2022 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 182 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 23, 2021 · EPA return-to-compliance field June 30, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 545 June 15, 2021 Informal State Violation/Reminder Notice 546 June 15, 2021 Informal State Public Notification requested 559 December 8, 2021 Informal State Site Visit for enforcement purposes 609 January 18, 2022 Informal State Public Notification received 596 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 180 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 25, 2021 · EPA return-to-compliance field March 31, 2021
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 481 May 8, 2018 Formal State Administrative/Compliance Order without penalty issued 537 April 22, 2021 Informal State Violation/Reminder Notice 538 April 22, 2021 Informal State Public Notification requested 548 August 24, 2021 Informal State Public Notification received 559 December 8, 2021 Informal State Site Visit for enforcement purposes 596 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 178 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2020 · period end June 11, 2021 · first reported April 1, 2021 · EPA return-to-compliance field June 11, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 532 March 15, 2021 Informal State Violation/Reminder Notice 533 March 15, 2021 Informal State Public Notification requested 536 April 22, 2021 Informal State Public Notification received 564 June 11, 2021 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