All water systems in Wyoming
773 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mhvc Sixth Crossing Ranch RV Park Fremont County |
200 | 0 | 0 | |
|
Mills Spring Ranch Casper · Natrona County |
200 | 0 | 0 | |
|
Nine-Mile Water & Sewer District Laramie · Albany County |
200 | 0 | 0 | |
|
North Alpine I&s District Alpine · Lincoln County |
200 | 9 | 0 | |
|
Osage Water District Osage · Weston County |
200 | 2 | 1 | |
|
Poison Spider I&s District Mills · Natrona County |
200 | 0 | 0 | |
|
Powder River Coal-Caballo Mine Gillette · Campbell County |
200 | 0 | 0 | |
|
Snake River Park KOA Jackson · Teton County |
200 | 0 | 0 | |
|
Targhee Nf-Alpine CG Alpine · Lincoln County |
200 | 1 | 0 | |
|
Stone Gate Estates Gillette · Campbell County |
198 | 0 | 0 | |
|
Edgerton, Town of Edgerton · Natrona County |
195 | 1 | 0 | |
|
Force Road Joint Powers Board Gillette · Campbell County |
195 | 0 | 0 | |
|
Terry Bison Ranch Cheyenne · Laramie County |
195 | 0 | 0 | |
|
Bridger Coal Company-Admin Point Of Rocks · Sweetwater County |
191 | 1 | 0 | |
|
Elk Mountain, Town of Elk Mountain · Carbon County |
191 | 3 | 0 | |
|
Medicine Bow, Town of Medicine Bow · Carbon County |
189 | 0 | 0 | |
|
Sweetwater County Airport Rock Springs · Sweetwater County |
189 | 1 | 0 | |
|
Albin, Town of Albin · Laramie County |
181 | 9 | 5 | |
|
Old Faithful RV Park, LLC Cody · Park County |
181 | 0 | 0 | |
|
Bentonite Performance Minerals Colony Colony · Crook County |
180 | 0 | 0 | |
|
Wydot-I25 Port of Entry Cheyenne · Laramie County |
180 | 0 | 0 | |
|
Deaver Municipal Water System Deaver · Big Horn County |
176 | 0 | 0 | |
|
Dyno Nobel, INC Cheyenne · Laramie County |
176 | 0 | 0 | |
|
People`s Improvement & Service District Gillette · Campbell County |
176 | 0 | 0 | |
|
Bunkhouse Bar and Grill Cheyenne · Laramie County |
174 | 0 | 0 | |
|
Red Vista & Ten Sleep Brewery WS Ten Sleep · Washakie County |
173 | 1 | 0 | |
|
Y-O Investments, Inc. Wheatland · Platte County |
173 | 0 | 0 | |
|
Lex Mobile Home Park Gillette · Campbell County |
172 | 1 | 0 | |
|
Fireside Resort Incorporated Teton Village · Teton County |
170 | 2 | 1 | |
|
North Antelope Coal Mine Gillette · Campbell County |
170 | 0 | 0 | |
|
Snow King Mountain Resort Summit WS Jackson · Teton County |
170 | 0 | 0 | |
|
WY Dot-Highway 339 Port of Entry Sheridan · Sheridan County |
168 | 0 | 0 | |
|
Gtnp Triangle X Ranch Moose · Teton County |
166 | 0 | 0 | |
|
Black Hills Nf-Cook Lake CG Sundance · Crook County |
165 | 1 | 1 | |
|
Douglas KOA CG & Pine Meadows MHP Douglas · Converse County |
165 | 1 | 0 | |
|
Mountain View Acres Riverton · Fremont County |
165 | 8 | 0 | |
|
Gtnp-Jenny Lake Lodge Moose · Teton County |
163 | 0 | 0 | |
|
Stagecoach Bar Incorporated Wilson · Teton County |
163 | 0 | 0 | |
|
Frannie, Town of Frannie · Big Horn County |
160 | 1 | 0 | |
|
Gilchrist Elementary Cheyenne · Laramie County |
160 | 0 | 0 | |
|
Gros Ventre North HOA Jackson · Teton County |
160 | 1 | 0 | |
|
Squaw Creek Water District Jackson · Teton County |
160 | 4 | 1 | |
|
Jacz Drive in and RV Park Etna · Lincoln County |
158 | 3 | 0 | |
|
Antelope Truck Stop Burns · Laramie County |
157 | 2 | 1 | |
|
Shoshone Nf-Wapiti CG & RS Cody · Park County |
157 | 0 | 0 | |
|
Glendo ST Park Headquarters Glendo · Platte County |
156 | 0 | 0 | |
|
Bhnf--Burgess Jct Visitor Cntr Dayton · Sheridan County |
155 | 1 | 0 | |
|
Bighorn Resort LLC Worland · Big Horn County |
154 | 2 | 0 | |
|
Black Hills Power Incorporated Gillette · Campbell County |
154 | 0 | 0 | |
|
Lyman KOA Campground Lyman · Uinta County |
154 | 1 | 0 |
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.