All water systems in Idaho
2,020 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Idjc Juvenile Corrections Center Fremont County |
280 | 4 | 1 | |
|
Wymosa Water Assn INC Ada County |
280 | 0 | 0 | |
|
Elkhorn Ranch Kootenai County |
278 | 1 | 1 | |
|
Usace Springy Point Recreation Area Bonner County |
278 | 0 | 0 | |
|
Lost Creek Estates Water Kootenai County |
277 | 0 | 0 | |
|
Arrow Point Park Kootenai County |
275 | 1 | 0 | |
|
Castleford City of Twin Falls County |
275 | 1 | 1 | |
|
Chateaux Water Assn INC Kootenai County |
275 | 2 | 1 | |
|
Idpr Henrys Lake SP Fremont County |
275 | 1 | 0 | |
|
Royal Highland Water System Kootenai County |
275 | 2 | 1 | |
|
Paradise Estates Water Corp Ada County |
273 | 4 | 1 | |
|
Blackhawk Estates/iron Rim Bonneville County |
270 | 0 | 0 | |
|
Cougar Creek Water Assn Bonner County |
270 | 0 | 0 | |
|
Fir Grove Estates Valley County |
270 | 3 | 2 | |
|
United Reformed Church of Nampa Nampa · Canyon County |
270 | 1 | 1 | |
|
West Meadows Estates Ada County |
270 | 0 | 0 | |
|
McCain Foods Cassia County |
267 | 3 | 0 | |
|
Lds Church Menan Jefferson County |
266 | 0 | 0 | |
|
Alpine Meadows Water and Sewer Dist Kootenai County |
265 | 0 | 0 | |
|
Lds Church Hamer Jefferson County |
264 | 0 | 0 | |
|
Mission Creek Water Assn Boundary County |
263 | 5 | 2 | |
|
Jeb and Margarets Trailer Haven Bonner County |
260 | 0 | 0 | |
|
North Tomer Butte W&s District Latah County |
259 | 3 | 1 | |
|
Hauser Lake Heights Kootenai County |
257 | 0 | 0 | |
|
Bovill Water Dept Latah County |
256 | 1 | 0 | |
|
Kootenai High School Dist 274 Kootenai County |
255 | 0 | 0 | |
|
Lds Church Albion Cassia County |
253 | 1 | 0 | |
|
Stites City of Idaho County |
253 | 3 | 0 | |
|
Wapello Elementary School Bingham County |
253 | 3 | 1 | |
|
Lds Church Palisades -5069335 Palisades · Bonneville County |
251 | 1 | 0 | |
|
Arrowrock Ranch Ada County |
250 | 0 | 0 | |
|
Bailey Creek Property Owners Assn Caribou County |
250 | 2 | 1 | |
|
Bennington Water System Bear Lake County |
250 | 9 | 3 | |
|
Brundage Ski Lodge Adams County |
250 | 0 | 0 | |
|
Camp Ee-De-How Valley County |
250 | 1 | 0 | |
|
Castle Mountain Creeks Owners Assn Boise County |
250 | 2 | 0 | |
|
Country Life Estates Bonneville County |
250 | 5 | 2 | |
|
Covert Water Users Association Canyon County |
250 | 1 | 1 | |
|
Day Star Valley County |
250 | 3 | 1 | |
|
Fox Creek Country Club Estates Teton County |
250 | 0 | 0 | |
|
Galena Mine Water System Shoshone County |
250 | 1 | 0 | |
|
Glanbia Foods INC Gooding County |
250 | 0 | 0 | |
|
Idaho National Guard Snake River Train Ada County |
250 | 0 | 0 | |
|
Idaho Supreme Bingham County |
250 | 5 | 1 | |
|
Kamiah Valley Company LLC Idaho County |
250 | 1 | 0 | |
|
Mellen Subd Water Dist Elmore County |
250 | 6 | 1 | |
|
NW Lineman College Meridian · Ada County |
250 | 0 | 0 | |
|
Paradise Valley Water Assn Boundary County |
250 | 1 | 1 | |
|
Paul Housing Authority Minidoka County |
250 | 4 | 1 | |
|
Pocatello KOA LLC Bannock County |
250 | 2 | 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.