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AZ0410140 · Arizona

MT LEMMON DWID

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

Violation records shown: 11
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Pima County, Arizona

Open the EPA system record

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

Violations and what followed

Among 8 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 239.5 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Unaddressed by formal action
Lead Consumer NoticeViolation 15745 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2026 · first reported May 14, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3411 April 8, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 15741 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 24, 2024 · period end April 5, 2023 · first reported May 15, 2024 · EPA return-to-compliance field April 5, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3402 April 5, 2023 Resolving State Compliance achieved
3400 April 5, 2024 Informal State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 15743 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · 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
3404	January 27, 2025	Informal	State Violation/Reminder Notice
3405	January 27, 2025	Informal	State Public Notification requested
3407	June 16, 2025	Informal	State Public Notification received
3408	November 3, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 15742 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · 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
3404	January 27, 2025	Informal	State Violation/Reminder Notice
3405	January 27, 2025	Informal	State Public Notification requested
3407	June 16, 2025	Informal	State Public Notification received
3408	November 3, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 15738 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2023 · period end February 28, 2023 · first reported May 15, 2023 · EPA return-to-compliance field February 28, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3392	March 24, 2023	Informal	State Violation/Reminder Notice
3393	March 24, 2023	Informal	State Public Notification requested
3395	March 24, 2023	Resolving	State Compliance achieved
3403	April 22, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 15740 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3396	February 20, 2024	Informal	State Violation/Reminder Notice
3397	February 20, 2024	Informal	State Public Notification requested
3399	March 6, 2025	Informal	State Public Notification received
3408	November 3, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 15739 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3396	February 20, 2024	Informal	State Violation/Reminder Notice
3397	February 20, 2024	Informal	State Public Notification requested
3399	March 6, 2025	Informal	State Public Notification received
3408	November 3, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 15737 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2023 · period end October 20, 2022 · first reported May 15, 2023 · EPA return-to-compliance field October 20, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3391 October 20, 2022 Resolving State Compliance achieved
3389 February 15, 2023 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 15736 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start May 1, 2022 · period end August 24, 2022 · first reported August 15, 2022 · EPA return-to-compliance field August 24, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3385 June 27, 2022 Informal State Violation/Reminder Notice
3388 August 24, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 15735 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end July 8, 2021 · first reported November 10, 2021 · EPA return-to-compliance field July 8, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3384 July 8, 2021 Resolving State Compliance achieved
3382 August 12, 2021 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 15734 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start October 1, 2020 · period end October 20, 2020 · first reported February 12, 2021 · EPA return-to-compliance field October 20, 2020

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3381 October 20, 2020 Resolving State Compliance achieved
3379 November 18, 2020 Informal State Violation/Reminder Notice

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