Water quality for ZIP code 59873
ZIP 59873 covers Belknap, Thompson Falls, and Weeksville in Sanders County, Montana, one of 9 ZIP codes in the county. 44 active public water systems serve the county; 19 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sanders County
11 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Salish Shores Trade Winds Comm Village Thompson Falls |
215 | 1 | 5.8 mi | |
| North Shore Estates HOA Thompson Falls |
65 | 0 | 6.9 mi | |
| Woodside Park County Water and Sewer Dis Thompson Falls |
115 | 1 | 7.2 mi | |
| Water Service INC Trout Creek Trout Creek |
350 | 0 | 19.1 mi | |
| Plains Town of Plains |
1,700 | 1 | 22.5 mi | |
| Hot Springs Municipal Water Hot Springs |
982 | 1 | 28.3 mi | |
| Paradise Water District Paradise |
200 | 0 | 28.7 mi | |
| Noxon Water District Noxon |
330 | 0 | 32.7 mi | |
| Avista Utilities Noxon Rapids Dam Noxon |
43 | 0 | 32.7 mi | |
| Heron Community Water System Heron |
84 | 1 | 41.9 mi | |
| Clear View Academy Heron |
70 | 0 | 42.9 mi |
Non-community systems in Sanders County (32: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Sanders 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 Montana 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.