AZ0408062 · Arizona

LAKE MOHAVE HIGHLANDS

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

Violation records shown: 25
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 15

Counties listed by EPA · Mohave County, Arizona

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 24 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4311 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 19, 2025 · period end February 5, 2026 · first reported February 13, 2026 · EPA return-to-compliance field February 5, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
838 December 17, 2025 Informal State Violation/Reminder Notice
846 February 5, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 4308 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 2, 2025 · period end October 15, 2025 · first reported February 13, 2026 · EPA return-to-compliance field October 15, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
831 October 15, 2025 Informal State Violation/Reminder Notice
832 October 15, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
838	December 17, 2025	Informal	State Violation/Reminder Notice
846	February 5, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
831	October 15, 2025	Informal	State Violation/Reminder Notice
832	October 15, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 4307 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start January 2, 2025 · period end October 11, 2023 · first reported March 31, 2025 · EPA return-to-compliance field October 11, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
852	October 11, 2023	Resolving	State no longer subject to Rule
827	February 19, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4310 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field December 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
834 October 24, 2025 Informal State Violation/Reminder Notice
840 January 9, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4309 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
834 October 24, 2025 Informal State Violation/Reminder Notice
840 January 9, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4303 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 20, 2024 · period end January 21, 2025 · first reported February 18, 2025 · EPA return-to-compliance field January 21, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
826 January 21, 2025 Resolving State Compliance achieved
824 January 24, 2025 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
834	October 24, 2025	Informal	State Violation/Reminder Notice
840	January 9, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
834	October 24, 2025	Informal	State Violation/Reminder Notice
840	January 9, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
826	January 21, 2025	Resolving	State Compliance achieved
824	January 24, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

LSL ReportingViolation 4300 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 7, 2025 · first reported February 18, 2025 · EPA return-to-compliance field July 7, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
816	November 7, 2024	Informal	State Violation/Reminder Notice
817	November 7, 2024	Informal	State Public Notification requested
823	January 6, 2025	Informal	State Public Notification received
829	July 7, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 4299 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 7, 2025 · first reported February 18, 2025 · EPA return-to-compliance field July 7, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
813	November 7, 2024	Informal	State Violation/Reminder Notice
814	November 7, 2024	Informal	State Public Notification requested
822	January 6, 2025	Informal	State Public Notification received
829	July 7, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 4298 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 2, 2024 · period end October 7, 2025 · first reported February 18, 2025 · EPA return-to-compliance field October 7, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
811 October 21, 2024 Informal State Violation/Reminder Notice
830 October 7, 2025 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4297 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start August 2, 2024 · period end February 5, 2026 · first reported November 15, 2024 · EPA return-to-compliance field February 5, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
809 September 19, 2024 Informal State Violation/Reminder Notice
848 February 5, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4295 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 2, 2024 · period end February 5, 2026 · first reported May 15, 2024 · EPA return-to-compliance field February 5, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
801 February 16, 2024 Informal State Violation/Reminder Notice
844 February 5, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
811	October 21, 2024	Informal	State Violation/Reminder Notice
830	October 7, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
809	September 19, 2024	Informal	State Violation/Reminder Notice
848	February 5, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
801	February 16, 2024	Informal	State Violation/Reminder Notice
844	February 5, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4302 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported December 31, 2024 · EPA return-to-compliance field December 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
819	November 18, 2024	Informal	State Violation/Reminder Notice
820	November 18, 2024	Informal	State Public Notification requested
841	January 9, 2026	Resolving	State Compliance achieved
847	February 5, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4301 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported December 31, 2024 · EPA return-to-compliance field December 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
819	November 18, 2024	Informal	State Violation/Reminder Notice
820	November 18, 2024	Informal	State Public Notification requested
841	January 9, 2026	Resolving	State Compliance achieved
847	February 5, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4294 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 1, 2024 · period end February 5, 2026 · first reported May 15, 2024 · EPA return-to-compliance field February 5, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
799 January 19, 2024 Informal State Violation/Reminder Notice
850 February 5, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4293 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 13, 2023 · period end April 10, 2024 · first reported March 29, 2024 · EPA return-to-compliance field April 10, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
797 January 19, 2024 Informal State Violation/Reminder Notice
807 April 10, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
799	January 19, 2024	Informal	State Violation/Reminder Notice
850	February 5, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
797	January 19, 2024	Informal	State Violation/Reminder Notice
807	April 10, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4288 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2023 · period end July 31, 2023 · first reported November 15, 2023 · EPA return-to-compliance field July 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
785	August 24, 2023	Informal	State Violation/Reminder Notice
786	August 24, 2023	Informal	State Public Notification requested
806	March 13, 2024	Resolving	State Compliance achieved
849	February 5, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4286 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
778 July 19, 2023 Informal State Violation/Reminder Notice
784 July 19, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4290 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported November 15, 2023 · 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
788 November 14, 2023 Informal State Violation/Reminder Notice
842 January 9, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4289 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported November 15, 2023 · 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
788 November 14, 2023 Informal State Violation/Reminder Notice
842 January 9, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4283 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 15, 2023 · EPA return-to-compliance field March 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
770 May 9, 2023 Informal State Violation/Reminder Notice
776 May 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
778	July 19, 2023	Informal	State Violation/Reminder Notice
784	July 19, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
788	November 14, 2023	Informal	State Violation/Reminder Notice
842	January 9, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
788	November 14, 2023	Informal	State Violation/Reminder Notice
842	January 9, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
770	May 9, 2023	Informal	State Violation/Reminder Notice
776	May 9, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4281 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
767	January 27, 2023	Informal	State Violation/Reminder Notice
768	January 27, 2023	Informal	State Public Notification requested
777	May 19, 2023	Resolving	State Compliance achieved
845	February 5, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 4280 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2022 · period end October 6, 2025 · first reported February 15, 2023 · EPA return-to-compliance field October 6, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
764	December 12, 2022	Informal	State Violation/Reminder Notice
765	December 12, 2022	Informal	State Public Notification requested
837	October 6, 2025	Resolving	State Compliance achieved
851	February 5, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 4277 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start March 1, 2022 · period end May 16, 2022 · first reported May 16, 2022 · EPA return-to-compliance field May 16, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
754 April 26, 2022 Informal State Violation/Reminder Notice
757 May 16, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
754	April 26, 2022	Informal	State Violation/Reminder Notice
757	May 16, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4279 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start August 1, 2021 · period end July 31, 2022 · first reported December 29, 2022 · EPA return-to-compliance field July 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
758	December 12, 2022	Informal	State Violation/Reminder Notice
759	December 12, 2022	Informal	State Public Notification requested
808	April 10, 2024	Informal	State Public Notification received
843	January 9, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4278 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start August 1, 2021 · period end July 31, 2022 · first reported December 29, 2022 · EPA return-to-compliance field July 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
758	December 12, 2022	Informal	State Violation/Reminder Notice
759	December 12, 2022	Informal	State Public Notification requested
808	April 10, 2024	Informal	State Public Notification received
843	January 9, 2026	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