Idaho
Washington County drinking water quality
16 active public water systems serve 6,963 people in Washington County. 7 are compliant, 9 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
3 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Weiser City of |
5,630 | 1 | 0 | |
|
Cambridge City of |
335 | 4 | 0 | |
|
Midvale Water System |
144 | 2 | 1 |
Non-community systems (13: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Woodhead Park Complete |
203 | 0 | 0 | |
|
Champion Home Builders |
200 | 0 | 0 | |
|
Appleton Produce Fresh Pack Plant |
100 | 0 | 0 | |
|
Imagination Station |
60 | 2 | 0 | |
|
Monroe Creek Campground |
50 | 2 | 1 | |
|
Mundo Hot Springs |
45 | 0 | 0 | |
|
Idaho Timber Corp |
36 | 1 | 1 | |
|
Blm Steck Recreation Site |
30 | 0 | 0 | |
|
Usfs Spring Creek Campground |
30 | 0 | 0 | |
|
Afc Finishing Systems |
25 | 2 | 1 | |
|
Gateway Cafe |
25 | 4 | 1 | |
|
Itd Midvale Hill Rest Area |
25 | 0 | 0 | |
|
Mann Creek Country Store and Cafe |
25 | 3 | 2 |
Inactive systems (25, 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.