All water systems in Idaho
2,020 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lds Thomas Ward Church Bingham County |
624 | 1 | 1 | |
|
Usps Craters of the Moon National Park Butte County |
616 | 0 | 0 | |
|
Southside Water and Sewer Dist Bonner County |
615 | 0 | 0 | |
|
Lds Lansing Lane Middleton · Canyon County |
614 | 1 | 0 | |
|
Lds Siphon and Philbin Church Bannock County |
612 | 0 | 0 | |
|
Inl Atr Complex Butte County |
605 | 0 | 0 | |
|
Idaho National Guard Ortc Facility Ada County |
600 | 2 | 1 | |
|
Lamb Weston Inc. Power County |
600 | 3 | 2 | |
|
Lookout Pass Ski Area Shoshone County |
600 | 1 | 0 | |
|
Real Life Ministries North Kootenai County |
600 | 0 | 0 | |
|
Taylor Mountain Water and Sewer District Bonneville County |
600 | 0 | 0 | |
|
Lds Blackfoot West Stake Center Bingham County |
599 | 2 | 1 | |
|
Worley City of Kootenai County |
591 | 3 | 2 | |
|
Downey City of Bannock County |
586 | 1 | 0 | |
|
Inl Cfa Butte County |
585 | 0 | 0 | |
|
Kingston Water Dist 1 Shoshone County |
585 | 2 | 0 | |
|
Lds Church Osgood Bldg Bonneville County |
582 | 0 | 0 | |
|
New Meadows City of Adams County |
582 | 1 | 0 | |
|
Lds Church Shadow Mtn Ammon · Bonneville County |
581 | 1 | 0 | |
|
Lds Church Salem Madison County |
581 | 1 | 0 | |
|
Lds Church Ririe W Clark Shelton-5069203 Jefferson County |
571 | 0 | 0 | |
|
Mackay City of Custer County |
566 | 0 | 0 | |
|
Chilco Service Area Kootenai County |
563 | 0 | 0 | |
|
Meadows at West Mountain Valley County |
550 | 2 | 2 | |
|
Syringa Heights Water Dist Bonner County |
550 | 0 | 0 | |
|
True West Beef Jerome County |
550 | 0 | 0 | |
|
West Bonner Water Dist 1 Bonner County |
545 | 2 | 0 | |
|
Blm Joe T Fallini Custer County |
540 | 2 | 1 | |
|
Paris City of Bear Lake County |
540 | 2 | 1 | |
|
Rustic Acres Mobile Home Park Ada County |
540 | 3 | 2 | |
|
Lds Church Sunnyridge Canyon County |
539 | 1 | 0 | |
|
Notus City of Canyon County |
539 | 1 | 1 | |
|
Bee Line Water Assn INC Boundary County |
533 | 2 | 0 | |
|
Idaho City Water Dept Boise County |
531 | 1 | 1 | |
|
Deary City of Latah County |
529 | 1 | 0 | |
|
Lds Church Unity #5038650 Cassia County |
525 | 0 | 0 | |
|
Wilderness Ranch Owners Association INC Boise County |
525 | 3 | 1 | |
|
Fernwood Water Dist Benewah County |
521 | 0 | 0 | |
|
Lds Blackfoot Northwest Stake Center Bingham County |
521 | 2 | 1 | |
|
Plummer Tribal Community Plummer · County |
515 | 2 | 0 | |
|
Kooskia Water Dept Idaho County |
514 | 1 | 0 | |
|
Dubois City of Clark County |
511 | 1 | 1 | |
|
Firth City of Bingham County |
511 | 0 | 0 | |
|
Dayton City of Dayton · Franklin County |
510 | 0 | 0 | |
|
Sage Hill Travel Center County |
510 | 0 | 0 | |
|
Craigmont City of Lewis County |
501 | 1 | 0 | |
|
Richfield City of Lincoln County |
501 | 1 | 1 | |
|
Basic American Foods Blackfoot Bingham County |
500 | 2 | 2 | |
|
Fast Stop INC Bannock County |
500 | 3 | 1 | |
|
Hammer Stores Payette County |
500 | 1 | 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.