Water quality in Lewiston, Idaho
Lewiston is in Nez Perce County. 25 active public water systems serve the county; 14 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Nez Perce County
11 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lewiston Orchards Irrigation Dist |
20,000 | 0 | 1.7 mi | |
| Cougar Ridge Water & Sewer |
173 | 1 | 4.3 mi | |
| View Point Subdivision |
56 | 3 | 4.6 mi | |
| Eaton Mobile Home Court |
94 | 0 | 4.7 mi | |
| Red Pheasant Water Company LLC |
480 | 6 | 5.8 mi | |
| Red Rock Water LLC |
60 | 5 | 5.9 mi | |
| Lapwai City of |
325 | 4 | 10.0 mi | |
| Culdesac City of |
382 | 3 | 16.3 mi | |
| Peck Water System |
196 | 2 | 28.7 mi | |
| Eagles Pointe Subdivision |
154 | 0 | — | |
| Waha Glen Water Dist |
100 | 0 | — |
Non-community systems in Nez Perce County (13: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Atlas Sand and Rock INC Lewiston |
63 | 0 | 0 | |
|
Federal Cartridge Company |
765 | 0 | 0 | |
|
Clearwater Paper Corporation |
1,550 | 0 | 0 | |
|
Tammany Alternative Center |
80 | 2 | 1 | |
|
Western States Equipment |
35 | 0 | 0 | |
|
Itd Lewiston Hill Port of Entry |
25 | 0 | 0 | |
|
Nps Nez Perce National Historical Park |
75 | 0 | 0 | |
|
Rivaura Winery |
100 | 0 | 0 | |
|
Drovers Run at Jacques Spur |
60 | 1 | 1 | |
|
Itd Lenore Rest Stop |
80 | 1 | 0 | |
|
Lewiston Roundup |
50 | 2 | 1 | |
|
Canyon Inn |
30 | 4 | 0 | |
|
Blm McKays Bend Recreation Site |
25 | 1 | 0 |
About this data
Water systems are matched to Nez Perce County, nearest to Lewiston first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.