MT0003755 · Montana
SPHINX MOUNTAIN MB HM PK
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 1
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 1
Counties listed by EPA · Park 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 1 resolved record with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1362121 · Carbofuran · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 16, 2023 · EPA return-to-compliance field December 31, 2022
18 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 25236 January 29, 2023 Informal State Violation/Reminder Notice 25237 January 29, 2023 Informal State Public Notification requested 25239 January 29, 2023 Informal State Violation/Reminder Notice 25240 January 29, 2023 Informal State Public Notification requested 25242 January 29, 2023 Informal State Violation/Reminder Notice 25243 January 29, 2023 Informal State Public Notification requested 25245 January 29, 2023 Informal State Violation/Reminder Notice 25246 January 29, 2023 Informal State Public Notification requested 25248 January 29, 2023 Informal State Violation/Reminder Notice 25249 January 29, 2023 Informal State Public Notification requested 25251 January 29, 2023 Informal State Violation/Reminder Notice 25252 January 29, 2023 Informal State Public Notification requested 25238 February 7, 2023 Resolving State Compliance achieved 25241 February 7, 2023 Resolving State Compliance achieved 25244 February 7, 2023 Resolving State Compliance achieved 25247 February 7, 2023 Resolving State Compliance achieved 25250 February 7, 2023 Resolving State Compliance achieved 25253 February 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