083090005 · Montana

HEART BUTTE WATER SYSTEM

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

Violation records shown: 14
EPA health-based flag: 2
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 10

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

Violations and what followed

Among 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 241 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 14718 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2024 · period end October 31, 2024 · first reported February 24, 2025 · EPA return-to-compliance field October 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	January 15, 2021	Formal	Federal Final Administrative Order issued
38	November 19, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 14717 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2023 · period end December 3, 2024 · first reported February 22, 2024 · EPA return-to-compliance field December 3, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	January 15, 2021	Formal	Federal Final Administrative Order issued
37	December 3, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 14716 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2023 · period end December 6, 2023 · first reported February 22, 2024 · EPA return-to-compliance field December 6, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	January 15, 2021	Formal	Federal Final Administrative Order issued
28	November 8, 2023	Informal	State Violation/Reminder Notice
31	December 6, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 14715 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2023 · period end September 30, 2023 · first reported November 15, 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
18	January 15, 2021	Formal	Federal Final Administrative Order issued
32	October 18, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 14714 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2023 · period end February 27, 2024 · first reported November 15, 2023 · EPA return-to-compliance field February 27, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
24 August 3, 2023 Informal State Violation/Reminder Notice
33 February 27, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 14713 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2022 · period end December 6, 2023 · first reported May 16, 2023 · EPA return-to-compliance field December 6, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
24 August 3, 2023 Informal State Violation/Reminder Notice
31 December 6, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 14712 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start October 1, 2022 · period end March 21, 2023 · first reported February 16, 2023 · EPA return-to-compliance field March 21, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
23 March 21, 2023 Resolving State Compliance achieved
EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 14711 · Groundwater Rule · Ground Water Rule
Noncompliance period start October 16, 2021 · period end July 17, 2024 · first reported March 15, 2022 · EPA return-to-compliance field July 17, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
18 January 15, 2021 Formal Federal Final Administrative Order issued
34 July 17, 2024 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 14723 · Radium-228 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 14722 · Radium-226 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 14721 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 14720 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 14719 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported June 29, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
24	August 3, 2023	Informal	State Violation/Reminder Notice
33	February 27, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
24	August 3, 2023	Informal	State Violation/Reminder Notice
31	December 6, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
23	March 21, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 14709 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 27, 2018 · period end November 3, 2023 · first reported February 11, 2020 · EPA return-to-compliance field November 3, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	January 15, 2021	Formal	Federal Final Administrative Order issued
27	November 3, 2023	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