Tapcensus

Idaho

Bannock County drinking water quality

49 active public water systems serve 83,300 people in Bannock County. 7 are compliant, 42 had at least one EPA violation in the past three years, 3 are designated serious violators, and 1 carries a health flag.

Active systems 49 23 community systems
People served 83K by public water systems
Systems with violations 42 86% of active systems, past 3 years
Serious violators 3 1 systems carry a health flag

Needs attention

Whitewater Subd ID6030058 · Community water system · Serves 106 3 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Hitt the Road ID6030077 · Transient non-community system · Serves 100 4 rules violated in the past three years. Unresolved: Ground Water Rule and Public Notice Rule and Revised PN Rule.
Lost Trail ID6030042 · Transient non-community system · Serves 100 4 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Arimo City of ID6030002 · Community water system · Serves 368 2 rules violated in the past three years. Unresolved: Revised Total Coliform Rule and Lead and Copper Rule Revisions.

Community water systems

23 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Pocatello City of
Pocatello 		58,231 2 0
Chubbuck City of
 15,842 1 1
McCammon City of
 800 2 1
Inkom City of
 792 0 0
Downey City of
 586 1 0
Lava Hot Springs City of
 386 0 0
Arimo City of
 368 2 2
Tyhee and S and N Estates Water Assn
 300 1 0
Laceys Vista Acres Water Corp
 200 2 1
Caribou Acres
 150 1 0
D and M Water Assn
 142 1 1
Whitewater Subd
 106 3 1
Equestrian Estates
 88 0 0
Twin Pines Mobile Park
 86 0 0
Wildhorse Ridge Subd
 85 4 1
Valley View Estates
 74 4 1
Smith Road Water Users Assn
 58 5 2
Space Acres Water Users Assn
 29 1 1
Swan Lake Culinary Water Company
 29 0 0
Mink Creek Mountain Estates
 27 3 2
Moose Mountain
 27 2 1
Evergreen Acres Subd
 25 2 2
Thunder Canyon Estates Homeowners Assoc
 25 1 0
Non-community systems (26: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Tyhee Elementary School
 675 3 2
Lds Siphon and Philbin Church
 612 0 0
Fast Stop INC
 500 3 1
Lds Yellowstone Church
 467 2 1
Lds Tyhee Stake Center
 436 0 0
Pebble Creek Ski Area
 400 3 1
Downata Hot Springs
 350 1 1
Pocatello KOA LLC
 250 2 1
Beech Hollow
 100 2 0
Camp Taylor
 100 1 0
Hitt the Road
 100 4 2
Lava Hot Springs KOA
 100 2 0
Lost Trail
 100 4 1
Lava Campground
 80 2 1
Portneuf Bend Campground
Lava Hot Spring 		76 3 1
Lds Virginia Ward Church
 75 1 0
Lds Swan Lake Church
 62 2 1
Baker Ranch
 50 3 1
Intermountain Vipassana Association
 50 1 0
McCammon Subway
 50 1 0
Tyhee Enterprises
 50 1 0
Usfs Mink Creek Group Use Area
 50 2 0
Idaho Materials and Construction
 33 2 0
Intermountain Gas Company
 28 1 0
Sunnyside Sinclair
 25 2 0
Usfs Scout Mountain Campground
 25 1 0
Inactive systems (53, 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.