MT0004583 · Montana

DEER LICK SUBDIVISION WATER DISTRICT

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

Violation records shown: 12
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 12

Counties listed by EPA · Mineral County, Montana

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

Violations and what followed

Among 1 resolved record with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 262 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 232 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2025 · period end June 12, 2025 · first reported January 5, 2026 · EPA return-to-compliance field June 12, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
860	June 12, 2025	Resolving	State Compliance achieved
858	October 24, 2025	Informal	State Violation/Reminder Notice
859	October 24, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 221 · E. COLI · Ground Water Rule

Noncompliance period start October 18, 2022 · period end July 7, 2023 · first reported September 22, 2023 · EPA return-to-compliance field July 7, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
848	November 22, 2022	Informal	State Violation/Reminder Notice
849	November 22, 2022	Informal	State Public Notification requested
851	July 7, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Archived
Monitoring, RegularViolation 231 · Selenium · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 230 · Thallium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 229 · Beryllium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 228 · Antimony, Total · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 227 · Nickel · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 226 · Mercury · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 225 · Fluoride · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 224 · Chromium · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 223 · Cadmium · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 222 · Barium · Inorganic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.

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