MT0000158 · Montana
BOULDER CITY OF
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 8
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 7
Counties listed by EPA · Jefferson 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 3 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.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1240310 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5525877 January 23, 2025 Informal State Violation/Reminder Notice 5525878 January 23, 2025 Informal State Public Notification requested 5525879 January 23, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1240309 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5525877 January 23, 2025 Informal State Violation/Reminder Notice 5525878 January 23, 2025 Informal State Public Notification requested 5525879 January 23, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure to Filter (SWTR)Violation 1240307 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2022 · period end July 28, 2022 · first reported September 22, 2023 · EPA return-to-compliance field July 28, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5525869 July 28, 2022 Informal State Public Notification requested 5525870 July 28, 2022 Informal State Violation/Reminder Notice 5525871 July 28, 2022 Resolving State Compliance achieved 5525872 July 28, 2022 Informal State Public Notification received Monitoring or reporting · Addressed by formal action
Initial Tap Sampling for Pb and CuViolation 1222104 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2003 · first reported February 11, 2004
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5523104 March 18, 2004 Informal State Other 5523005 September 21, 2005 Resolving State Compliance achieved 5523206 May 15, 2006 Formal State Civil Case filed in State court Monitoring or reporting · Addressed by formal action
Initial Tap Sampling for Pb and CuViolation 1222304 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2002 · first reported February 11, 2004
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5523104 March 18, 2004 Informal State Other 5523005 September 21, 2005 Resolving State Compliance achieved 5523206 May 15, 2006 Formal State Civil Case filed in State court Monitoring or reporting · Addressed by formal action
Initial Tap Sampling for Pb and CuViolation 1222404 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2002 · first reported February 11, 2004
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5523104 March 18, 2004 Informal State Other 5523005 September 21, 2005 Resolving State Compliance achieved 5523206 May 15, 2006 Formal State Civil Case filed in State court Monitoring or reporting · Addressed by formal action
Initial Tap Sampling for Pb and CuViolation 1222504 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2001 · first reported February 11, 2004
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5523104 March 18, 2004 Informal State Other 5523005 September 21, 2005 Resolving State Compliance achieved 5523206 May 15, 2006 Formal State Civil Case filed in State court Monitoring or reporting · Addressed by formal action
Initial Tap Sampling for Pb and CuViolation 1222604 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2001 · first reported February 11, 2004
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5523104 March 18, 2004 Informal State Other 5523005 September 21, 2005 Resolving State Compliance achieved 5523206 May 15, 2006 Formal State Civil Case filed in State court
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