NN0400399 · Arizona
Sweetwater NTUA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 19
- EPA health-based flag
- 8
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 16 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 · Archived
Maximum Contaminant Level Violation, AverageViolation 040039902100572025 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported December 31, 2025 · EPA return-to-compliance field September 30, 2025
No linked action row appears in the records shown.Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 040039975750042024 · 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 0400399FJ03072541981 March 7, 2025 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 040039902100542024 · 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 0400399FJ08282441402 August 28, 2024 Informal State Formal Notice of Violation issued 0400399OX11132441865 November 13, 2024 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 040039975750012024 · 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 0400399FJ08282441400 August 28, 2024 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 040039902100512024 · 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
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FJ08282441401 August 28, 2024 Informal State Formal Notice of Violation issued 0400399OX11132441866 November 13, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 0400399757500102023 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2023 · period end October 1, 2023 · first reported October 6, 2024 · EPA return-to-compliance field October 1, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399OX10012342534 October 1, 2023 Resolving State Compliance achieved 0400399FJ08282441399 August 28, 2024 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 0400399021005102023 · 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 0400399FJ03292441404 March 29, 2024 Informal State Formal Notice of Violation issued 0400399OX11132441867 November 13, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 040039902100572023 · 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
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FJ12292340545 December 29, 2023 Informal State Formal Notice of Violation issued 0400399OX11132441868 November 13, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040039903100512022 · 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 0400399OX05192239530 May 19, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 040039975750012021 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 1, 2021 · period end December 2, 2021 · first reported September 2, 2021 · EPA return-to-compliance field December 2, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399OX12022138956 December 2, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 040039902100512021 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 28, 2021 · EPA return-to-compliance field March 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FG07072138742 July 7, 2021 Informal State Public Notification issued 0400399FJ07072138741 July 7, 2021 Informal State Formal Notice of Violation issued 0400399OX08032138923 August 3, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 04003997575001020201 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2020 · period end August 27, 2021 · first reported June 30, 2025 · EPA return-to-compliance field August 27, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FJ07072138739 July 7, 2021 Informal State Formal Notice of Violation issued 0400399OX08272138770 August 27, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 04003997575001020200 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2020 · period end December 2, 2021 · first reported May 28, 2021 · EPA return-to-compliance field December 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FJ07072138740 July 7, 2021 Informal State Formal Notice of Violation issued 0400399OX12022138955 December 2, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 0400399022950102020 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported June 30, 2025 · EPA return-to-compliance field December 31, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399OX02022138719 February 2, 2021 Resolving State Compliance achieved 0400399FG03312138523 March 31, 2021 Informal State Public Notification issued 0400399FJ03312138515 March 31, 2021 Informal State Formal Notice of Violation issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 0400399021005102020 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 25, 2021 · EPA return-to-compliance field December 31, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FG03312138521 March 31, 2021 Informal State Public Notification issued 0400399FJ03312138513 March 31, 2021 Informal State Formal Notice of Violation issued 0400399OX08032138922 August 3, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 040039975750072020 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 1, 2020 · period end April 27, 2021 · first reported March 25, 2021 · EPA return-to-compliance field April 27, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FJ03312138517 March 31, 2021 Informal State Formal Notice of Violation issued 0400399OX04272138718 April 27, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 040039975750042020 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 1, 2020 · period end April 27, 2021 · first reported December 28, 2020 · EPA return-to-compliance field April 27, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FG03312138520 March 31, 2021 Informal State Public Notification issued 0400399FJ03312138518 March 31, 2021 Informal State Formal Notice of Violation issued 0400399OX04272138957 April 27, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Sample Siting Plan Errors (RTCR)Violation 04003995A800042016 · 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 0400399FJ08282441398 August 28, 2024 Informal State Formal Notice of Violation issued 0400399OX03072541816 March 7, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 0400399350600102013 · Stage 2 Disinfectants and Disinfection Byproducts Rule · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2013 · period end May 6, 2021 · first reported September 22, 2017 · EPA return-to-compliance field May 6, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400399FG08251733347 August 25, 2017 Informal State Public Notification issued 0400399FJ08251733346 August 25, 2017 Informal State Formal Notice of Violation issued 0400399OX05062138643 May 6, 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