COUNTY WATER-SYSTEM LEDGER
Flathead, Montana
EPA’s September 2026 export lists 5 active community water systems serving Flathead, Montana, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Flathead, Montana
EPA associates 5 covered systems with Flathead, Montana; their reported population-served values total 53,743 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Kalispell Public WorksMT0000259 | 25,000 | Ground water | No current violation flagged |
| Whitefish City OfMT0000357 | 10,418 | Surface water | No current violation flagged |
| Flathead County Water And SewerMT0001744 | 7,775 | Ground water | No current violation flagged |
| Bigfork County Water And SewerMT0000262 | 6,100 | Ground water | No current violation flagged |
| Columbia Falls City OfMT0000181 | 4,450 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Flathead, Montana
EPA classifies 5 systems serving Flathead, Montana across 2 primary-source categories; Ground water is the largest category with 4 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.