Tapcensus

Groundwater Rule (GWR) violations in Idaho

107 active public water systems in Idaho had a Groundwater Rule (GWR) violation in the past three years, 95 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.

Health effects: Protects against enteric viruses, which can contaminate groundwater via cracked well casings, failing septic systems, or animal waste. Viruses persist longer in groundwater than in surface water. Hepatitis A and norovirus are the primary pathogens of concern.

Systems with a Groundwater Rule (GWR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Shady Rest RV Park and Campground
Bonneville County
80 5 2
Tamarack Mills LLC Dba Evergreen Forests
Adams County
80 2 2
Bear Den RV Resort
Idaho County
75 1 1
Bittercreek Meadows Subdivision
Ada County
75 5 2
Deep Creek Mennonite School
Twin Falls County
75 1 1
Mountain View RV West
Valley County
75 3 2
Red Rock RV and Camping Park
Fremont County
75 3 2
Strawberry Mink Creek Water Assn
Franklin County
75 5 1
Stanley Pond INC
Ada County
72 4 2
Huetter City of
Kootenai County
70 5 2
Reubens City of
Lewis County
70 3 3
Pine Haven Park
Kootenai County
66 3 1
Shotgun Kickapoo Subd 6
Fremont County
65 3 2
Cedar Point Subdivision
Bingham County
63 7 3
Gem State Happy Valley Water System
Kootenai County
60 1 1
Moreland Country Court
Bingham County
60 5 3
Sunbeam Water
Power County
60 4 3
7n Ranch
Jefferson County
56 4 0
Clear Lake Ranch P U D
Gooding County
54 6 2
Pioneer Mobile Home Park LLC
Homedale · Owyhee County
53 4 1
Dahl Subd
Canyon County
51 4 3
Conkling Marina & Resort
Kootenai County
50 3 0
Hucks Rainey Creek
Bonneville County
50 1 1
Bsa Island Park Scout Camp
Fremont County
50 3 3
Key Mart Corner
Elmore County
50 3 1
Riverstone Subdivision
Blackfoot · Bingham County
50 4 3
Warren Water System
Bonner County
45 3 3
Covered Wagon Saloon and RV Park
Bonneville County
42 3 2
Locust Subd
Canyon County
42 2 2
Mountain View Court
St. Anthony · Fremont County
40 3 3
Shipman Place Subd
Canyon County
40 1 1
White Knob Motel and Pool
Custer County
38 2 1
White Knob RV Park
Custer County
38 1 1
Stone Elementary School Dist 351
Oneida County
35 2 2
Lowman Inn
Boise County
30 4 2
Mountain West Products
Rexburg · Madison County
30 1 1
Silver Sage Real Property Owners Assn
Elmore County
30 4 2
Wellington Campground
Valley County
30 1 1
Country RV Village
Minidoka County
25 3 2
Garden Valley Chevron
Boise County
25 2 2
Idpr Niagara Springs
Gooding County
25 2 1
Producers Livestock Marketing
Jerome County
25 2 2
Rupert Elks Lodge
Minidoka County
25 1 1
Winder Water System
Franklin County
20 1 1
Pines RV Park
Harvard · Latah County
10 3 0
Fairview Water Dist
Franklin County
1,300 3 1
Red Pheasant Water Company LLC
Nez Perce County
480 6 2
Stites City of
Idaho County
253 3 0
Birch Creek Culinary
Franklin County
120 2 1
Ohio Match Estates
Kootenai County
118 2 0
About this data

A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) alone.

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.