NN4903072 · Utah
Mexican Water NTUA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 20
- EPA health-based flag
- 8
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
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.
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 490307275750042024 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 1, 2024 · first reported December 18, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ03072541974 March 7, 2025 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100542024 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2024 · period end June 30, 2024 · first reported October 6, 2024 · EPA return-to-compliance field June 30, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ08202441374 August 20, 2024 Informal State Formal Notice of Violation issued 4903072OX11132442542 November 13, 2024 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 490307275750012024 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 1, 2024 · first reported October 6, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ08202441375 August 20, 2024 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100512024 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported October 6, 2024 · EPA return-to-compliance field March 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ08282441467 August 28, 2024 Informal State Formal Notice of Violation issued 4903072FJ08282441468 August 28, 2024 Informal State Formal Notice of Violation issued 4903072OX11132442541 November 13, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4903072757500102023 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2023 · period end December 12, 2023 · first reported October 6, 2024 · EPA return-to-compliance field December 12, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072OX12122342661 December 12, 2023 Resolving State Compliance achieved 4903072FJ03292441470 March 29, 2024 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 4903072021005102023 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ03292441469 March 29, 2024 Informal State Formal Notice of Violation issued 4903072OX11132442540 November 13, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100572023 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported December 21, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ12292340671 December 29, 2023 Informal State Formal Notice of Violation issued 4903072FJ12292340672 December 29, 2023 Informal State Formal Notice of Violation issued 4903072OX11132442539 November 13, 2024 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 490307275750072022 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 1, 2022 · first reported March 13, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ10052240280 October 5, 2022 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100572022 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 12, 2022 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ01312339846 January 31, 2023 Informal State Formal Notice of Violation issued 4903072OX02082340143 February 8, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 490307275750042022 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 1, 2022 · period end December 12, 2023 · first reported December 12, 2022 · EPA return-to-compliance field December 12, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ01312339845 January 31, 2023 Informal State Formal Notice of Violation issued 4903072OX12122340415 December 12, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100542022 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 1, 2022 · EPA return-to-compliance field June 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ09302239607 September 30, 2022 Informal State Formal Notice of Violation issued 4903072OX02082340142 February 8, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 490307275750012022 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 1, 2022 · period end July 1, 2023 · first reported September 1, 2022 · EPA return-to-compliance field July 1, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ09302239608 September 30, 2022 Informal State Formal Notice of Violation issued 4903072OX07012340292 July 1, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 490307203100512022 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported June 3, 2022 · EPA return-to-compliance field March 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072OX05192239519 May 19, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 490307202100512022 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported June 3, 2022 · EPA return-to-compliance field March 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072OX02082340141 February 8, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4903072757500102021 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2021 · period end October 25, 2022 · first reported June 3, 2022 · EPA return-to-compliance field October 25, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072OX10252239672 October 25, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 4903072021005102021 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported March 11, 2022 · EPA return-to-compliance field December 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ03302239189 March 30, 2022 Informal State Formal Notice of Violation issued 4903072OX02082340140 February 8, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 49030723A800062021 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start June 1, 2021 · period end June 30, 2021 · first reported September 2, 2021 · EPA return-to-compliance field June 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072OX07132138805 July 13, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 490307275750072019 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 1, 2019 · period end October 25, 2022 · first reported March 30, 2020 · EPA return-to-compliance field October 25, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ03302239191 March 30, 2022 Informal State Formal Notice of Violation issued 4903072OX10252239671 October 25, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Sample Siting Plan Errors (RTCR)Violation 49030725A800042016 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start April 1, 2016 · period end March 7, 2025 · first reported October 6, 2024 · EPA return-to-compliance field March 7, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FJ08202441373 August 20, 2024 Informal State Formal Notice of Violation issued 4903072OX03072541813 March 7, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 4903072350600102013 · Stage 2 Disinfectants and Disinfection Byproducts Rule · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2013 · period end August 8, 2022 · first reported September 22, 2017 · EPA return-to-compliance field August 8, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4903072FG08281733488 August 28, 2017 Informal State Public Notification issued 4903072FJ08281733487 August 28, 2017 Informal State Formal Notice of Violation issued 4903072OX08082239509 August 8, 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