Water quality in Westby, Montana
Westby is in Sheridan County. 8 active public water systems serve the county; 5 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 Sheridan County
4 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Antelope County Water and Sewer Antelope |
59 | 3 | 22.0 mi | |
| Plentywood Water Department Plentywood |
1,700 | 0 | 23.7 mi | |
| Medicine Lake Town of Medicine Lake |
600 | 0 | 32.5 mi | |
| Outlook County Sewer and Water Outlook |
96 | 1 | 32.9 mi |
Non-community systems in Sheridan County (3: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sunset Camping LLC Plentywood |
42 | 1 | 1 | |
|
Brush Lake State Park Dagmar |
58 | 1 | 0 | |
|
Raymond Border Station Raymond |
37 | 1 | 0 |
About this data
Water systems are matched to Sheridan County, nearest to Westby 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 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.