Water quality for ZIP code 89421
ZIP 89421 covers Fort McDermitt and McDermitt in Malheur County, Oregon, one of 14 ZIP codes in the county. 24 active public water systems serve the county; 23 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Malheur County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Adrian, City of |
159 | 9 | 123.5 mi | |
| Fischers Place MHP |
130 | 10 | 133.6 mi | |
| Nyssa, City of |
3,285 | 3 | 133.7 mi | |
| Vale, City of |
1,837 | 3 | 141.0 mi | |
| Ontario, City of |
14,465 | 0 | 143.7 mi | |
| Golf MHP |
60 | 6 | — | |
| River Village MHP |
40 | 7 | — |
Non-community systems in Malheur County (16: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Oprd Indian Creek CG |
100 | 1 | 0 | |
|
Oprd McCormack CG |
250 | 2 | 0 | |
|
Oasis Cafe & Motel RV |
55 | 4 | 0 | |
|
Harper High/elementary SD 66 |
170 | 4 | 2 | |
|
US Silica |
69 | 1 | 0 | |
|
Bates Motel & Deli |
50 | 2 | 1 | |
|
Country Campground |
25 | 3 | 0 | |
|
Willowcreek Elem SD #84 |
80 | 3 | 2 | |
|
Willowcreek Store & Cafe |
50 | 4 | 1 | |
|
Fry Foods |
280 | 3 | 0 | |
|
Annex Charter School |
50 | 5 | 1 | |
|
Oasis on the Snake |
50 | 3 | 0 | |
|
Winners Horseshoe Annex |
25 | 2 | 0 | |
|
Huntington Travel Plaza |
999 | 1 | 0 | |
|
Odot Stanton Blvd Facility |
30 | 3 | 0 | |
|
Spur 95 |
25 | 2 | 0 |
About this data
Water systems are matched to Malheur County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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 Oregon 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.