Idaho
Boundary County drinking water quality
21 active public water systems serve 11,704 people in Boundary County. 8 are compliant, 13 had at least one EPA violation in the past three years, 2 are designated serious violators, and 1 carries a health flag.
Needs attention
Community water systems
14 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bonners Ferry City of |
3,367 | 0 | 0 | |
|
Three Mile Water Dist |
2,652 | 2 | 2 | |
|
Cabinet Mountains Water Dist |
2,335 | 0 | 0 | |
|
Moyie Springs City of |
1,123 | 1 | 0 | |
|
Bee Line Water Assn INC |
533 | 2 | 0 | |
|
Mission Creek Water Assn |
263 | 5 | 2 | |
|
Paradise Valley Water Assn |
250 | 1 | 1 | |
|
Twenty Mile Creek Water Assn |
225 | 1 | 0 | |
|
Skin Creek Water Assn |
200 | 1 | 0 | |
|
Trow Creek Water Assn |
98 | 3 | 1 | |
|
Moravia Water Assn |
80 | 1 | 0 | |
|
Curley Creek Water Assn |
50 | 2 | 0 | |
|
Deep Creek Water Company |
30 | 1 | 0 | |
|
Cow Creek Water Assn |
28 | 0 | 0 |
Non-community systems (7: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Elk Mountain Farms Backwoods |
200 | 0 | 0 | |
|
Feist Creek Resort |
100 | 2 | 0 | |
|
Gsa Eastport Border Station |
50 | 0 | 0 | |
|
Eastport Union Pacific Railroad |
45 | 0 | 0 | |
|
Elk Mountain Farms Tavern Farm |
25 | 0 | 0 | |
|
Good Grief Grill & Grocery |
25 | 1 | 0 | |
|
Usfw Kootenai National Wildlife Ref |
25 | 0 | 0 |
Inactive systems (40, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Idaho records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.