EPA public water records · 30063
Missoula County, Montana
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 42
- Systems with unresolved health-based records
- 3
- Of those, systems with a formally addressed health-based record
- 1
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
- B & M ZOO SUBDIVISIONMT0005006 · Montana · 100 violation records · 0 unresolved health-based in this snapshot
- BAIR CLARK PROPERTIES, LLCMT0000374 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- BEE HIVE HOMES MSLAMT0004891 · Montana · 9 violation records · 0 unresolved health-based in this snapshot
- BIG PINES TRAILER COURTMT0000450 · Montana · 22 violation records · 0 unresolved health-based in this snapshot
- BITTERROOT GATEWAY MB PK LOLOMT0000443 · Montana · 111 violation records · 0 unresolved health-based in this snapshot
- BITTERROOT MEADOWS HOA LOLOMT0003146 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- BONNIE'S PLACE INCMT0004074 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- C AND D HOAMT0003283 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- CATLIN STREET MOBILE COURTMT0003538 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- CIRCLE H WATER INCMT0004446 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- EAST VIEW ACRES WATER SYSTEMMT0003565 · Montana · 2 violation records · 1 unresolved health-based in this snapshot
- ELK MEADOWS RANCHETTESMT0000632 · Montana · 4 violation records · 0 unresolved health-based in this snapshot
- GRANT CREEK WATER USERS ASSOCIATION INCMT0003305 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- GREENWOOD TRAILER COURTMT0000449 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- GROVE THEMT0004211 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- HAPPY VALLEY MHPMT0000377 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- HARVEYS MOBILE HOME PARKMT0000453 · Montana · 4 violation records · 0 unresolved health-based in this snapshot
- HIDDEN HEIGHTS HOAMT0002120 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- HIGH QUALITY H2OMT0002540 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- LOLO WATER AND SEWER DISTMT0000278 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- MISSOULA KOA & EL MAR TLR VILLAGEMT0002517 · Montana · 5 violation records · 0 unresolved health-based in this snapshot
- MISSOULA VILLAGE WEST TR CTMT0003012 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- MONTANA TRAILER COURTMT0003215 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- NEW CASTLE COURTMT0004322 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- OLD HELLGATE VILLAGE MSLAMT0002635 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- RENAE COURT SUBDIVISIONMT0004245 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- RYANS LOTMT0004368 · Montana · 10 violation records · 0 unresolved health-based in this snapshot
- SEELEY LAKE WATER DISTRICTMT0000327 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- SHELBY ADDITION WATER DISTRICTMT0002800 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- SORREL SPRINGS HOAMT0000518 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- SPRING MEADOWS COUNTY WATER DISTRICTMT0003630 · Montana · 1 violation records · 1 unresolved health-based in this snapshot
- SUNNY MEADOWS WATER AND SEWER DISTMT0001864 · Montana · 3 violation records · 0 unresolved health-based in this snapshot
- TAMARACK COURTMT0000368 · Montana · 7 violation records · 0 unresolved health-based in this snapshot
- TARGET RANGE TRAILER COURT LLCMT0000367 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- TRAVOIS VILLAGE MOBILE PARKMT0003909 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- TURAH MEADOWSMT0004537 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- VALLEY GROVE WATER USERS ASSOCIATIONMT0000490 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- VALLEY WATER SYSTEM THEMT0004518 · Montana · 2 violation records · 0 unresolved health-based in this snapshot
- VALLEY WEST TRAILER COURTMT0000444 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- WAGON WHEEL TRAILER VILLAGEMT0000379 · Montana · 1 violation records · 0 unresolved health-based in this snapshot
- WESTVIEW MOBILE HOME PARKMT0000437 · Montana · 97 violation records · 1 unresolved health-based in this snapshot
- WYE AREA WATER SYSTEMMT0004107 · Montana · 2 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