Water quality in Lewistown, Montana
Lewistown is in Fergus County. 21 active public water systems serve the county; 18 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 Fergus County
10 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lewistown City of Lewistown |
5,923 | 1 | 0.6 mi | |
| King Ranch Colony Lewistown |
56 | 4 | 1.7 mi | |
| Deerfield Hutterite Colony Lewistown |
51 | 2 | 1.7 mi | |
| Spring Creek Colony Lewistown Lewistown |
48 | 1 | 2.6 mi | |
| Moore Town of Moore |
186 | 2 | 14.2 mi | |
| Ayers Hutterite Colony Grass Range |
58 | 0 | 17.3 mi | |
| Roy Water and Sewer District Roy |
110 | 2 | 28.6 mi | |
| Denton Town of Denton |
255 | 2 | 29.6 mi | |
| Grass Range Town of Grass Range |
102 | 4 | 29.7 mi | |
| Winifred Town of Winifred |
274 | 7 | 33.8 mi |
Non-community systems in Fergus County (10: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lehrkinds Big Spring Water Lewistown |
2,575 | 2 | 0 | |
|
Judith Shadows Golf Course Lewistown |
25 | 1 | 0 | |
|
Town & Country Lewistown Lewistown |
25 | 0 | 0 | |
|
Pine Meadows Golf Course Elks 456 the Lewistown |
130 | 2 | 0 | |
|
HI Heat Industries INC Lewistown |
75 | 2 | 0 | |
|
Judith Mountain Lodge Unapproved Lewistown |
30 | 2 | 0 | |
|
The Hideaway Hilger |
26 | 3 | 2 | |
|
K-M Scout Ranch Water System Great Falls |
325 | 0 | 0 | |
|
Eddies Corner Moore |
503 | 2 | 0 | |
|
Big Sky Grocery Unapproved Moore |
90 | 1 | 0 |
About this data
Water systems are matched to Fergus County, nearest to Lewistown 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.
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.