Water quality for ZIP code 83866
Benewah County, Idaho, one of 6 ZIP codes in the county. 15 active public water systems serve the county; 8 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 Benewah County
8 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Fernwood Water Dist |
521 | 0 | 3.5 mi | |
| Emida Water and Sewer Association |
120 | 3 | 8.5 mi | |
| Evergreen Terrace Water Association |
85 | 0 | 10.8 mi | |
| ST Maries City of |
4,173 | 0 | 13.1 mi | |
| Cottonwood Point Water Assn |
158 | 0 | 14.0 mi | |
| Cassandra Hills Owners Assn |
57 | 1 | 18.9 mi | |
| Tensed City of |
146 | 5 | 23.4 mi | |
| Plummer City of |
1,034 | 4 | 24.0 mi |
Non-community systems in Benewah County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
ST Joe Landing St. Maries |
25 | 0 | 0 | |
|
Cherry Creek Trailer Park |
25 | 2 | 1 | |
|
Idpr Heyburn SP Benewah CG |
100 | 0 | 0 | |
|
Idpr Heyburn SP Chatcolet CG |
400 | 1 | 0 | |
|
Soaring Hawk RV Park |
25 | 0 | 0 | |
|
Idpr Mission Mountain Water System Benewah |
45 | 1 | 0 |
About this data
Water systems are matched to Benewah 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 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.