All water systems in Idaho
2,020 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Gem State Spirit Lake East Kootenai County |
843 | 2 | 0 | |
|
Kootenai County Water Dist 1 Kootenai County |
843 | 6 | 3 | |
|
E Shoshone County Water Dist Mullan Shoshone County |
840 | 0 | 0 | |
|
Lds Church Amity Locust Grove Meridian · Ada County |
840 | 2 | 0 | |
|
Oakley City of Cassia County |
821 | 6 | 4 | |
|
Lds Church Labelle Jefferson County |
813 | 0 | 0 | |
|
Rocky Mountain Middle School Bonneville County |
813 | 0 | 0 | |
|
Potlatch City of Latah County |
812 | 1 | 0 | |
|
Hillsdale Estates Homeowners Assn Ada County |
800 | 0 | 0 | |
|
McCammon City of Bannock County |
800 | 2 | 1 | |
|
Meadow Creek Property Owners Assn INC Adams County |
800 | 1 | 0 | |
|
Inkom City of Bannock County |
792 | 0 | 0 | |
|
Lds Church Farmway Canyon County |
784 | 2 | 1 | |
|
Idpr Lucky Peak SP Spring Shores Boise County |
780 | 1 | 1 | |
|
Idpr Lucky Peak SP Sandy Point Ada County |
777 | 2 | 1 | |
|
Lds Building 30 Hwy 30 Caldwell · Canyon County |
775 | 3 | 1 | |
|
Federal Cartridge Company Nez Perce County |
765 | 0 | 0 | |
|
Bogus Basin Mtn Resort Boise County |
750 | 4 | 1 | |
|
Horseshoe Bend Water Supply Boise County |
750 | 2 | 1 | |
|
Lds Church Henrys Fork Hibbard · Madison County |
747 | 0 | 0 | |
|
Snake River High School Bingham County |
745 | 2 | 1 | |
|
Lds South Rexburg Stake Center Madison County |
737 | 0 | 0 | |
|
Teton City of Fremont County |
735 | 0 | 0 | |
|
Clark Fork City of Bonner County |
730 | 2 | 0 | |
|
Lds Iona Stakehouse-5005990 Bonneville County |
727 | 0 | 0 | |
|
Lds Rose Church Bingham County |
724 | 0 | 0 | |
|
Lds Garfield 3rd & 4th Ward-5857596 Garfield · Jefferson County |
720 | 0 | 0 | |
|
Lds Church Deer Flat Canyon County |
718 | 1 | 0 | |
|
Sagle Valley Water Dist Bonner County |
708 | 0 | 0 | |
|
Sorrento Lactalis Canyon County |
700 | 5 | 0 | |
|
Lds Ucon Stake House-5144612 Bonneville County |
685 | 0 | 0 | |
|
Lds Church Nampa Northside Canyon County |
684 | 0 | 0 | |
|
Lds Menan Stake Center Jefferson County |
682 | 0 | 0 | |
|
3d Water Association Bonneville County |
680 | 1 | 0 | |
|
Cataldo Water Dist Shoshone County |
680 | 0 | 0 | |
|
Roberts City of Jefferson County |
680 | 2 | 0 | |
|
Lds Rigby 11th Ward-5001111 Rigby · Jefferson County |
678 | 0 | 0 | |
|
Tyhee Elementary School Bannock County |
675 | 3 | 2 | |
|
Laclede Water Dist Bonner County |
668 | 1 | 0 | |
|
Lds Church Kimberly SC Twin Falls County |
659 | 1 | 0 | |
|
Ririe City of Jefferson County |
656 | 0 | 0 | |
|
Clearwater River Casino & Resort Lewiston · County |
650 | 0 | 0 | |
|
Desert View Estates Water Corp Ada County |
650 | 0 | 0 | |
|
Melba City of Canyon County |
648 | 4 | 1 | |
|
Lds Church Ashton Ashton · Fremont County |
642 | 0 | 0 | |
|
Terreton Elementary High Als Schools Jefferson County |
640 | 1 | 0 | |
|
Valley School Jerome County |
640 | 3 | 2 | |
|
Lds Riverside Church Bingham County |
637 | 2 | 1 | |
|
Gem State Bar Circle S Ranch Kootenai County |
633 | 0 | 0 | |
|
Juliaetta City of Latah County |
624 | 4 | 1 |
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.