MT0005064 · Montana
NCMRWA NORTH SHELBY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 10
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 10
Counties listed by EPA · Toole 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 10 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 43 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 13 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start April 1, 2025 · period end June 10, 2025 · first reported June 23, 2025 · EPA return-to-compliance field June 10, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 45 May 20, 2025 Informal State Violation/Reminder Notice 46 May 20, 2025 Informal State Public Notification requested 47 June 10, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Initial Tap Sampling for Pb and CuViolation 12 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2024 · period end February 26, 2024 · first reported March 20, 2024 · EPA return-to-compliance field February 26, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 42 February 13, 2024 Informal State Violation/Reminder Notice 43 February 13, 2024 Informal State Public Notification requested 44 February 26, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 9 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start September 29, 2022 · period end August 15, 2023 · first reported September 22, 2023 · EPA return-to-compliance field August 15, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 33 October 17, 2022 Informal State Violation/Reminder Notice 34 August 15, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Initial Tap Sampling for Pb and CuViolation 7 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2022 · period end January 12, 2022 · first reported September 22, 2023 · EPA return-to-compliance field January 12, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 26 January 12, 2022 Informal State Violation/Reminder Notice 27 January 12, 2022 Informal State Public Notification requested 28 January 12, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 10 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 35 October 20, 2022 Informal State Violation/Reminder Notice 36 October 20, 2022 Informal State Public Notification requested 37 August 7, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start September 29, 2021 · period end October 7, 2021 · first reported September 22, 2023 · EPA return-to-compliance field October 7, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 21 October 4, 2021 Informal State Violation/Reminder Notice 22 October 7, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 4 · Groundwater Rule · Ground Water RuleNoncompliance period start July 1, 2021 · period end July 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field July 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 17 August 13, 2021 Informal State Violation/Reminder Notice 18 August 13, 2021 Informal State Public Notification requested 20 February 1, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 3 · Groundwater Rule · Ground Water RuleNoncompliance 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 13 July 15, 2021 Informal State Violation/Reminder Notice 14 July 15, 2021 Informal State Public Notification requested 16 February 1, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2021 · period end March 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field March 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 12 April 12, 2021 Resolving State Compliance achieved 10 April 16, 2021 Informal State Public Notification requested 9 April 16, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 23 October 20, 2021 Informal State Violation/Reminder Notice 24 October 20, 2021 Informal State Public Notification requested 25 August 7, 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