MT0002005 · Montana

TEN MILE AND PLEASANT VALLEY WUA

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

Violation records shown: 29
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 24

Counties listed by EPA · Lewis and Clark 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 28 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.

Monitoring or reporting · Unaddressed by formal action
Lead Consumer NoticeViolation 867854 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2026 · first reported March 26, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
118892 January 14, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118892	January 14, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Resolved

OCCT/SOWT Study/RecommendationViolation 867852 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start April 1, 2024 · period end June 26, 2024 · first reported June 27, 2024 · EPA return-to-compliance field June 26, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118882	April 18, 2024	Informal	State Violation/Reminder Notice
118883	April 18, 2024	Informal	State Public Notification requested
118884	June 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Initial, Follow-up, or Routine Source Water M/RViolation 867851 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start April 1, 2024 · period end June 26, 2024 · first reported June 27, 2024 · EPA return-to-compliance field June 26, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118879	April 18, 2024	Informal	State Violation/Reminder Notice
118880	April 18, 2024	Informal	State Public Notification requested
118881	June 26, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 867829 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2023 · period end October 13, 2023 · first reported December 20, 2023 · EPA return-to-compliance field October 13, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118877	October 13, 2023	Informal	State Violation/Reminder Notice
118878	October 13, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 867828 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2023 · period end February 12, 2024 · first reported September 22, 2023 · EPA return-to-compliance field February 12, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
118875 July 11, 2023 Informal State Violation/Reminder Notice
118876 February 12, 2024 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 867827 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2022 · period end July 11, 2022 · first reported September 22, 2023 · EPA return-to-compliance field July 11, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
118873 July 11, 2022 Informal State Violation/Reminder Notice
118874 July 11, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118875	July 11, 2023	Informal	State Violation/Reminder Notice
118876	February 12, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118873	July 11, 2022	Informal	State Violation/Reminder Notice
118874	July 11, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867825 · Styrene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867824 · Ethylbenzene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867823 · Toluene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867822 · Benzene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867821 · CHLOROBENZENE · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867820 · Tetrachloroethylene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867819 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867818 · Trichloroethylene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867817 · 1,2-Dichloropropane · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867816 · Carbon tetrachloride · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867815 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867814 · 1,2-Dichloroethane · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867813 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867812 · 1,1-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867811 · Vinyl chloride · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867810 · p-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867809 · o-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867808 · DICHLOROMETHANE · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867807 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867806 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 867805 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118868	October 8, 2021	Resolving	State Compliance achieved
118866	October 14, 2021	Informal	State Violation/Reminder Notice
118867	October 14, 2021	Informal	State Public Notification requested

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 867804 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end July 19, 2021 · first reported September 22, 2023 · EPA return-to-compliance field July 19, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
118860 July 19, 2021 Informal State Violation/Reminder Notice
118861 July 19, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118860	July 19, 2021	Informal	State Violation/Reminder Notice
118861	July 19, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 867803 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2021 · period end June 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field June 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
118862	July 16, 2021	Informal	State Violation/Reminder Notice
118863	July 16, 2021	Informal	State Public Notification requested
118865	August 5, 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