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083090064 · Montana

LAME DEER WATER SYSTEM

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

Violation records shown
20
EPA health-based flag
3
Health-based records unresolved in this snapshot
1
Monitoring and reporting records
17

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 18 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 365 days. The interval uses the reporting periods and dates on file.

  1. EPA health-based flag · Unaddressed by formal action

    Treatment Technique, Level 1 Assessment (RTCR)Violation 18841 · Revised Total Coliform Rule · Revised Total Coliform Rule

    Noncompliance period start May 22, 2026 · first reported August 27, 2026

    No linked action row appears in the records shown.
  2. Monitoring or reporting · Unaddressed by formal action

    Monitoring, Source Water (GWR)Violation 18840 · E. COLI · Ground Water Rule

    Noncompliance period start April 24, 2026 · first reported August 27, 2026

    No linked action row appears in the records shown.
  3. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18839 · Nitrate-Nitrite · Nitrate Rule

    Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported March 2, 2026 · EPA return-to-compliance field December 31, 2025

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    315April 13, 2026ResolvingState Compliance achieved
  4. EPA health-based flag · Resolved

    Treatment Technique, Corrective/Expedited Actions (RTCR)Violation 18837 · Revised Total Coliform Rule · Revised Total Coliform Rule

    Noncompliance period start May 1, 2023 · period end July 25, 2023 · first reported September 11, 2023 · EPA return-to-compliance field July 25, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    303July 25, 2023ResolvingState Compliance achieved
  5. Monitoring or reporting · Resolved

    Lead Consumer NoticeViolation 18832 · Lead and Copper Rule · Lead and Copper Rule

    Noncompliance period start December 30, 2022 · period end April 9, 2024 · first reported February 16, 2023 · EPA return-to-compliance field April 9, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    304April 9, 2024ResolvingState Compliance achieved
  6. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 18833 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported December 18, 2024 · EPA return-to-compliance field December 31, 2022

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    295March 14, 2023ResolvingState Compliance achieved
  7. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 18831 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported December 18, 2024 · EPA return-to-compliance field December 31, 2022

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    295March 14, 2023ResolvingState Compliance achieved
  8. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 18830 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 18, 2024 · EPA return-to-compliance field September 30, 2022

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    295March 14, 2023ResolvingState Compliance achieved
  9. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18821 · Nitrate-Nitrite · Nitrate Rule

    Noncompliance period start January 1, 2021 · period end December 31, 2021 · first reported March 15, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    280February 9, 2022ResolvingState Compliance achieved
  10. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18820 · Nitrate-Nitrite · Nitrate Rule

    Noncompliance period start January 1, 2021 · period end December 31, 2021 · first reported March 15, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    279February 9, 2022ResolvingState Compliance achieved
  11. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18819 · Nitrate-Nitrite · Nitrate Rule

    Noncompliance period start January 1, 2021 · period end December 31, 2021 · first reported March 15, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    278February 9, 2022ResolvingState Compliance achieved
  12. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18836 · Asbestos · Inorganic Chemicals

    Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported September 24, 2024 · EPA return-to-compliance field December 31, 2022

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    305April 10, 2024ResolvingState Compliance achieved
  13. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 18817 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2019 · period end August 31, 2020 · first reported March 31, 2021 · EPA return-to-compliance field August 31, 2020

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    268October 28, 2021ResolvingState Compliance achieved
  14. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 18816 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2019 · period end August 31, 2020 · first reported March 31, 2021 · EPA return-to-compliance field August 31, 2020

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    268October 28, 2021ResolvingState Compliance achieved
  15. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18828 · Radium-228 · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported June 28, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    283May 12, 2022ResolvingState Compliance achieved
  16. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18827 · Radium-226 · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported June 28, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    283May 12, 2022ResolvingState Compliance achieved
  17. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18826 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported June 28, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    283May 12, 2022ResolvingState Compliance achieved
  18. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18825 · Combined Uranium · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported June 28, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    283May 12, 2022ResolvingState Compliance achieved
  19. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 18824 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported June 28, 2022 · EPA return-to-compliance field December 31, 2021

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    283May 12, 2022ResolvingState Compliance achieved
  20. EPA health-based flag · Resolved

    Failure To Address DeficiencyViolation 18812 · Groundwater Rule · Ground Water Rule

    Noncompliance period start January 1, 2019 · period end July 11, 2023 · first reported April 24, 2019 · EPA return-to-compliance field July 11, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    300July 11, 2023ResolvingState 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.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility