Idaho
Latah County drinking water quality
35 active public water systems serve 41,383 people in Latah County. 12 are compliant, 23 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
21 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Moscow Water Dept |
26,000 | 1 | 0 | |
|
University of Idaho |
8,589 | 0 | 0 | |
|
Genesee City of |
1,044 | 0 | 0 | |
|
Troy City of |
850 | 4 | 0 | |
|
Potlatch City of |
812 | 1 | 0 | |
|
Juliaetta City of |
624 | 4 | 1 | |
|
Deary City of |
529 | 1 | 0 | |
|
Kendrick City of |
313 | 0 | 0 | |
|
North Tomer Butte W&s District |
259 | 3 | 1 | |
|
Bovill Water Dept |
256 | 1 | 0 | |
|
Onaway Water and Sewer Assn |
200 | 2 | 2 | |
|
Apex Living Community |
150 | 2 | 2 | |
|
Appaloosa Community |
129 | 1 | 1 | |
|
Viola Water and Sewer Dist |
128 | 1 | 0 | |
|
Country Homes Mobile Park |
90 | 0 | 0 | |
|
Hoo Doo Harvard Water and Sewer Dist |
82 | 5 | 1 | |
|
Hidden Village Mhp, LLC |
66 | 0 | 0 | |
|
Evergreen Community LLC |
65 | 0 | 0 | |
|
Woodland Heights MHP |
60 | 1 | 0 | |
|
Y Mobile Home Park |
52 | 0 | 0 | |
|
Cone Delfred Subd |
40 | 0 | 0 |
Non-community systems (14: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Camp Grizzly Boy Scouts |
300 | 2 | 0 | |
|
Bennett Lumber Products INC |
150 | 0 | 0 | |
|
Itd Mineral Mountain Rest Area |
100 | 0 | 0 | |
|
Moscow Elks Golf Course |
100 | 1 | 0 | |
|
Usfs Laird Park Campground |
86 | 1 | 1 | |
|
Tamarack Family Dining |
75 | 1 | 1 | |
|
Fab Tec |
40 | 0 | 0 | |
|
Tenicor |
40 | 1 | 1 | |
|
Renaissance RV Park |
39 | 1 | 0 | |
|
Helmer Water Assn |
30 | 1 | 0 | |
|
Palouse Hills Christian School |
25 | 1 | 0 | |
|
Usfs Giant White Pine Campground |
25 | 0 | 0 | |
|
Usfs Little Boulder Creek Campground |
25 | 1 | 0 | |
|
Pines RV Park Harvard |
10 | 3 | 0 |
Inactive systems (28, 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.