All water systems in Wyoming
773 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Orchard Valley Water Company Cheyenne · Laramie County |
260 | 3 | 0 | |
|
Skyline Ranch I&s District Jackson · Teton County |
260 | 0 | 0 | |
|
Cedar Hills Water Association Gillette · Campbell County |
258 | 0 | 0 | |
|
East Thermopolis, Town of Thermopolis · Hot Springs County |
254 | 0 | 0 | |
|
Grover Water & Sewer District Grover · Lincoln County |
252 | 2 | 1 | |
|
Alpine 4-H Camp Alpine · Lincoln County |
250 | 1 | 0 | |
|
Camp Buffalo Bill Powell · Park County |
250 | 1 | 1 | |
|
Exxon Mobil Shute Creek Gas Plant Kemmerer · Lincoln County |
250 | 3 | 0 | |
|
Teton Valley Ranch Camp-Dubois Jackson · Fremont County |
250 | 0 | 0 | |
|
Trailshead Lodge Laramie · Albany County |
250 | 2 | 0 | |
|
Union Pacific Railroad Bill · Converse County |
250 | 1 | 1 | |
|
Wrangler Estates Gillette · Campbell County |
250 | 3 | 0 | |
|
Ynp-Indian Creek Yellowstone Np · Park County |
240 | 1 | 0 | |
|
Yellowstone Valley Inn Cody · Park County |
237 | 1 | 0 | |
|
Air Base Acres I&s District Mills · Natrona County |
236 | 1 | 0 | |
|
Powder River Coal-Rawhide Mine Gillette · Campbell County |
235 | 0 | 0 | |
|
Fairview Water & Sewer District Afton · Lincoln County |
230 | 2 | 0 | |
|
Fort Laramie, Town of Fort Laramie · Goshen County |
230 | 1 | 0 | |
|
Pavillion, Town of Pavillion · Fremont County |
230 | 2 | 1 | |
|
Darby Girls Camp Teton County |
225 | 1 | 0 | |
|
West End Water District Newcastle · Weston County |
225 | 6 | 1 | |
|
Gtnp--Moose/beaver Creek Moose · Teton County |
221 | 1 | 0 | |
|
American Road W&s District Gillette · Campbell County |
220 | 0 | 0 | |
|
Sunridge Estates Riverton · Fremont County |
220 | 3 | 2 | |
|
Ridgewater Improvement District Douglas · Converse County |
218 | 0 | 0 | |
|
Devil's Tower Trading Post Devils Tower · Crook County |
215 | 0 | 0 | |
|
National Wildlife Art Museum Jackson · Teton County |
213 | 0 | 0 | |
|
Laramie County Archer Complex Cheyenne · Laramie County |
212 | 0 | 0 | |
|
Aladdin, Town of Crook County |
211 | 3 | 1 | |
|
Rock River, Town of Rock River · Albany County |
211 | 1 | 0 | |
|
Eaton's Dude Ranch Sheridan County |
210 | 0 | 0 | |
|
Fish Creek Improvement and Service Dist Wilson · Teton County |
210 | 0 | 0 | |
|
Wydot-I80 Port of Entry Cheyenne · Laramie County |
206 | 0 | 0 | |
|
Pahaska Tepee Resort Cody · Park County |
205 | 0 | 0 | |
|
Akal Travel Center Laramie · Albany County |
202 | 2 | 1 | |
|
Mhvc Cherry Creek CG Alcova · Natrona County |
202 | 0 | 0 | |
|
Three Forks-Muddy Gap Service Rawlins · Carbon County |
202 | 0 | 0 | |
|
Dave Johnston Power Plant Glenrock · Converse County |
201 | 0 | 0 | |
|
Weston County Mallo Camp Newcastle · Weston County |
201 | 1 | 1 | |
|
A Bar a Ranch Encampment · Carbon County |
200 | 0 | 0 | |
|
B&a Marina Glendo · Platte County |
200 | 2 | 0 | |
|
B&k Mobile Home Park Riverton · Fremont County |
200 | 4 | 1 | |
|
Chugwater, Town of Chugwater · Platte County |
200 | 1 | 0 | |
|
Circle J Ranch Ten Sleep · Washakie County |
200 | 0 | 0 | |
|
Flat Creek Inn Jackson · Teton County |
200 | 0 | 0 | |
|
Flying X Ranch MHP Wheatland · Albany County |
200 | 0 | 0 | |
|
Gros Ventre Utility Jackson · Teton County |
200 | 0 | 0 | |
|
Jade MHC Riverton · Fremont County |
200 | 3 | 1 | |
|
Mbnf-Mirror Lake PG Saratoga · Albany County |
200 | 0 | 0 | |
|
Medicine Waters Village Saratoga · Carbon County |
200 | 4 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.