All water systems in Idaho
2,020 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Kamiah City of Lewis County |
1,495 | 6 | 1 | |
|
Melaleuca Warehouse Facility Idaho Falls · Bonneville County |
1,397 | 1 | 0 | |
|
Bonneville High School Bonneville County |
1,354 | 1 | 0 | |
|
Inl Mfc Bingham County |
1,350 | 0 | 0 | |
|
Bayview Water and Sewer Dist Kootenai County |
1,320 | 1 | 1 | |
|
Fairview Water Dist Franklin County |
1,300 | 3 | 1 | |
|
Marsing City of Owyhee County |
1,300 | 0 | 0 | |
|
Glenns Ferry City of Elmore County |
1,282 | 3 | 0 | |
|
Hansen City of Twin Falls County |
1,200 | 3 | 3 | |
|
Itd Huetter Poe Kootenai County |
1,200 | 2 | 1 | |
|
Paul City of Minidoka County |
1,195 | 1 | 0 | |
|
Hayden Pines Grouse Meadows Kootenai County |
1,188 | 0 | 0 | |
|
Ucon City of Bonneville County |
1,161 | 0 | 0 | |
|
Ashton City of Fremont County |
1,129 | 3 | 1 | |
|
Moyie Springs City of Boundary County |
1,123 | 1 | 0 | |
|
Remington Rec Water Dist Kootenai County |
1,104 | 0 | 0 | |
|
Caldwell Housing Authority Canyon County |
1,100 | 1 | 1 | |
|
Minico High School Minidoka County |
1,100 | 0 | 0 | |
|
Arco City of Butte County |
1,080 | 1 | 0 | |
|
Genesee City of Latah County |
1,044 | 0 | 0 | |
|
Plummer City of Benewah County |
1,034 | 4 | 0 | |
|
Black Rock Utilities INC Kootenai County |
1,014 | 0 | 0 | |
|
Bald Mountain Blaine County |
1,000 | 1 | 0 | |
|
Cascade City of Valley County |
1,000 | 0 | 0 | |
|
Franklin City of Franklin County |
1,000 | 2 | 0 | |
|
Idpr Lucky Peak SP Discovery Unit Ada County |
1,000 | 4 | 0 | |
|
Idpr Ponderosa SP Valley County |
1,000 | 0 | 0 | |
|
Sandy Downs Rodeo Grounds and Race Track Bonneville County |
1,000 | 1 | 1 | |
|
Teton Valley Cabins Teton County |
1,000 | 1 | 1 | |
|
Carey City of Blaine County |
993 | 1 | 0 | |
|
Athol City of Kootenai County |
990 | 0 | 0 | |
|
Hagerman City of Gooding County |
988 | 1 | 1 | |
|
Greenferry Water & Sewer District Kootenai County |
978 | 2 | 0 | |
|
Cottonwood Water Dept Idaho County |
977 | 2 | 0 | |
|
Gozzer Ranch Kootenai County |
970 | 1 | 0 | |
|
Schweitzer Basin Water Company Bonner County |
955 | 0 | 0 | |
|
Stoneridge Utilities Bonner County |
940 | 1 | 1 | |
|
Speedy's Truck Stop Lupton · County |
926 | 3 | 1 | |
|
Teton Springs Water and Sewer Company Teton County |
924 | 0 | 0 | |
|
Grace City of Caribou County |
920 | 1 | 0 | |
|
Challis City of Custer County |
900 | 5 | 1 | |
|
Council City of Adams County |
900 | 0 | 0 | |
|
Hazelton City of Jerome County |
899 | 1 | 1 | |
|
Lds Church 11 Labelle 3 Rigby 2,3 Rigby · Jefferson County |
884 | 1 | 0 | |
|
Inl Intec Butte County |
866 | 0 | 0 | |
|
Dover City of Bonner County |
865 | 1 | 0 | |
|
Lds Church Central Ave Ammon · Bonneville County |
851 | 1 | 0 | |
|
CS Beef Packing Ada County |
850 | 1 | 0 | |
|
Troy City of Latah County |
850 | 4 | 0 | |
|
Greenleaf City of Canyon County |
846 | 1 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.