Pentachlorophenol violations in Idaho
36 active public water systems in Idaho had a Pentachlorophenol violation in the past three years, 3 of them still unresolved. What Pentachlorophenol is and why it matters.
Systems with a Pentachlorophenol violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Morning View Water Company Jefferson County |
459 | 4 | 2 | |
|
Drake Subd Canyon County |
150 | 9 | 3 | |
|
Grain Craft Bingham County |
50 | 1 | 0 | |
|
Rexburg City of Madison County |
40,695 | 1 | 0 | |
|
Falls Water Company INC Bonneville County |
22,650 | 3 | 0 | |
|
Lewiston City of Nez Perce County |
15,001 | 3 | 0 | |
|
Mountain Home, City of Elmore County |
14,651 | 5 | 2 | |
|
Blackfoot City of Bingham County |
13,224 | 2 | 0 | |
|
Capitol Water Corp Ada County |
9,000 | 5 | 1 | |
|
Fruitland City of Payette County |
7,458 | 3 | 1 | |
|
McCall City of Valley County |
4,423 | 5 | 1 | |
|
ST Anthony Fremont County |
3,606 | 1 | 0 | |
|
Sorrento Lactalis Canyon County |
700 | 5 | 0 | |
|
Bia North Idaho Lapwai · County |
490 | 5 | 0 | |
|
Terrace Lakes Water Company Boise County |
475 | 6 | 1 | |
|
Unit 3 Water Assn Jerome County |
350 | 7 | 2 | |
|
Cambridge City of Washington County |
335 | 4 | 0 | |
|
Lapwai City of Nez Perce County |
325 | 4 | 0 | |
|
Shotgun North Fremont County |
285 | 4 | 2 | |
|
Bennington Water System Bear Lake County |
250 | 9 | 3 | |
|
Idaho Supreme Bingham County |
250 | 5 | 1 | |
|
Mellen Subd Water Dist Elmore County |
250 | 6 | 1 | |
|
Paul Housing Authority Minidoka County |
250 | 4 | 1 | |
|
Shotgun Cherokee Subd 5 Fremont County |
245 | 5 | 2 | |
|
Dufort Water Association Bonner County |
216 | 3 | 0 | |
|
Aspen Ridge Subd Fremont County |
204 | 6 | 1 | |
|
Calvary Chapel of Emmett Emmett · Gem County |
192 | 7 | 1 | |
|
Idahoan Foods Lewisville Office &pckging Jefferson County |
170 | 2 | 0 | |
|
White Bird City of Idaho County |
125 | 6 | 1 | |
|
Perpetua Resources Valley County |
120 | 6 | 1 | |
|
Pleasant View Manor Canyon County |
100 | 5 | 1 | |
|
Valley View Subdivision Fremont County |
90 | 6 | 3 | |
|
King Hill Domestic Water and Sewer Elmore County |
87 | 8 | 1 | |
|
Mountain Sage Elmore County |
65 | 9 | 2 | |
|
Cedar Point Subdivision Bingham County |
63 | 7 | 3 | |
|
Usfs Lowman Ranger Station PC Boise County |
35 | 5 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Pentachlorophenol, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Pentachlorophenol 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. Retrieved from ECHO on Oct 11, 2026.