EPA public water records · 30043
Jefferson County, Montana
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 14
- Systems with unresolved health-based records
- 0
- Of those, systems with a formally addressed health-based record
- 0
These counts cover the linked records shown here. A county listing can cover only part of the county or reflect a mailing location.
Find your water system
- BASIN COUNTY WATER AND SEWER DISTMT0000014 · Montana · 10 violation records · 0 unresolved health-based in this snapshot
- BLUE SKY HEIGHTS WUA CLANCYMT0000030 · Montana · 13 violation records · 0 unresolved health-based in this snapshot
- BOULDER CITY OFMT0000158 · Montana · 8 violation records · 0 unresolved health-based in this snapshot
- ELKHORN HEALTH AND REHABILITATION LLCMT0000618 · Montana · 11 violation records · 0 unresolved health-based in this snapshot
- FOREST PARK WATER USERS ASSOCIATIONMT0000591 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- HANGMANS TREE WUAMT0000128 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- JEFFERSON HILLS WUAMT0002978 · Montana · 12 violation records · 0 unresolved health-based in this snapshot
- JEFFERSON TRACTS ASSOC INCMT0003614 · Montana · 10 violation records · 0 unresolved health-based in this snapshot
- RED CLIFF ESTATES HOAMT0004268 · Montana · 11 violation records · 0 unresolved health-based in this snapshot
- ROCKY MOUNTAIN WUAMT0000058 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- SADDLE MOUNTAIN CORP CLANCYMT0000057 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- STONEY BROOK VILLAGE CONDOMINIUM ASSOCMT0004257 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- SUNNYBROOK ACRES HOAMT0002482 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- WHITEHALL TOWN OFMT0000359 · Montana · 31 violation records · 0 unresolved health-based in this snapshot
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