Wyoming
Sheridan County drinking water quality
21 active public water systems serve 28,020 people in Sheridan County. 8 are compliant, 13 had at least one EPA violation in the past three years, 0 are designated serious violators, and 2 carry a health flag.
Needs attention
Community water systems
6 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sheridan, City of Sheridan |
22,700 | 0 | 0 | |
|
Ranchester, Town of Ranchester |
1,297 | 0 | 0 | |
|
Dayton, Town of Dayton |
957 | 1 | 0 | |
|
Veterans Administration Medical Center Sheridan |
802 | 5 | 1 | |
|
Downer Neighborhood I&s District Sheridan |
400 | 0 | 0 | |
|
Clearmont, Town of Clearmont |
116 | 0 | 0 |
Non-community systems (15: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ucross Guest Ranch Clearmont |
441 | 2 | 0 | |
|
Eaton's Dude Ranch |
210 | 0 | 0 | |
|
WY Dot-Highway 339 Port of Entry Sheridan |
168 | 0 | 0 | |
|
Bhnf--Burgess Jct Visitor Cntr Dayton |
155 | 1 | 0 | |
|
Bhnf-Burgess RV Dump Station |
150 | 2 | 0 | |
|
Wagon Box Inn Story |
103 | 2 | 0 | |
|
Arrowhead Wyoming LLC Dayton |
100 | 3 | 1 | |
|
Elk View Inn Dayton |
98 | 1 | 0 | |
|
Bear Lodge Dayton |
93 | 2 | 0 | |
|
Brinton Museum Big Horn |
69 | 2 | 0 | |
|
Bhnf-Sibley Lake CG Dayton |
60 | 1 | 0 | |
|
Parkman Bar Parkman |
40 | 2 | 1 | |
|
Story Elementary School Story |
31 | 0 | 0 | |
|
Bhnf-Burgess RS Sheridan |
20 | 2 | 0 | |
|
Elkhorn Trailer Park Sheridan |
10 | 0 | 0 |
Inactive systems (14, 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 Wyoming 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.