All water systems in Wyoming
773 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lewis Mobile Home Park Rock Springs · Sweetwater County |
370 | 2 | 2 | |
|
Thayne, Town of Thayne · Lincoln County |
366 | 0 | 0 | |
|
Lindley Park, LLC Evanston · Uinta County |
362 | 2 | 0 | |
|
Countryside Water Users, Inc. Gillette · Campbell County |
360 | 1 | 0 | |
|
Fort Laramie National Historic Site Fort Laramie · Goshen County |
352 | 0 | 0 | |
|
Lucerne Water and Sewer Dist. Thermopolis · Hot Springs County |
350 | 2 | 1 | |
|
WY Dot-Independence RA Casper · Natrona County |
350 | 1 | 0 | |
|
Wydot-Gooseberry RA Meeteetse · Hot Springs County |
350 | 0 | 0 | |
|
Burlington, Town of Burlington · Big Horn County |
348 | 1 | 0 | |
|
LA Barge, Town of La Barge · Lincoln County |
347 | 2 | 0 | |
|
Breazeale's Mobile Home Park Laramie · Albany County |
345 | 0 | 0 | |
|
Superior, Town of Superior · Sweetwater County |
336 | 2 | 2 | |
|
Terrace I MHC Casper · Natrona County |
336 | 1 | 0 | |
|
Snake River Sporting Club Jackson · Teton County |
332 | 0 | 0 | |
|
Horizon MHP Rock Springs · Sweetwater County |
330 | 1 | 0 | |
|
Cimmaron Village Cheyenne · Laramie County |
327 | 0 | 0 | |
|
Meeteetse, Town of Meeteetse · Park County |
327 | 0 | 0 | |
|
Midwest, Town of Midwest · Natrona County |
325 | 0 | 0 | |
|
Hidden Hills MHP Casper · Natrona County |
324 | 0 | 0 | |
|
Camp Loll Boy Scouts of America Teton County |
320 | 2 | 0 | |
|
Terrace II MHC Casper · Natrona County |
320 | 0 | 0 | |
|
Osmond I&s District Afton · Lincoln County |
315 | 1 | 1 | |
|
Basin Electric Power Co-Op Wheatland · Platte County |
310 | 0 | 0 | |
|
Rochelle Coal Mine Gillette · Campbell County |
306 | 0 | 0 | |
|
State Line Station Beulah · Crook County |
305 | 1 | 0 | |
|
Ten Mile Water and Sewer District Rock Springs · Sweetwater County |
305 | 0 | 0 | |
|
Highview Mfg Mobile Home Community (mhc) Gillette · Campbell County |
304 | 0 | 0 | |
|
Arng-Guernsey Training Camp Guernsey · Platte County |
302 | 2 | 0 | |
|
Eagle Specialty Materials, Llc-Belle Ayr Gillette · Campbell County |
300 | 0 | 0 | |
|
Freedom W&s District Freedom · Lincoln County |
300 | 2 | 0 | |
|
Gardens North Homeowners Association Riverton · Fremont County |
300 | 2 | 2 | |
|
Jubys Mobile Home Park Cody · Park County |
300 | 2 | 0 | |
|
Targhee Nf-Reunion Flat Campground Teton County |
300 | 2 | 0 | |
|
WY Dot-Cheyenne River RA Bill · Converse County |
300 | 1 | 0 | |
|
WY Trans Dept Waltman RA Powder River · Natrona County |
300 | 1 | 0 | |
|
Eagle Special. Mats, Llc-Rawhide School Gillette · Campbell County |
295 | 1 | 0 | |
|
Ynp -Lewis Lake CG Yellowstone Np · Teton County |
294 | 0 | 0 | |
|
Cook Road Water District Gillette · Campbell County |
291 | 0 | 0 | |
|
Glendo, Town of Glendo · Platte County |
289 | 5 | 1 | |
|
Curt Gowdy ST Pk-Hq & Visitor Ctr Cheyenne · Laramie County |
286 | 1 | 0 | |
|
Eagle Spec. Mat., Llc-Eagle Butte Mine Gillette · Campbell County |
277 | 0 | 0 | |
|
Cathedral Home Laramie · Albany County |
275 | 1 | 0 | |
|
Gtnp-Laurance S. Rockefeller PC Moose · Teton County |
275 | 0 | 0 | |
|
Bar Y Estates/gros Ventre West Wtr Dists Jackson · Teton County |
270 | 0 | 0 | |
|
White Mountain Mobile Home Park Rock Springs · Sweetwater County |
270 | 0 | 0 | |
|
Togwotee Mountain Lodge Moran Jct · Teton County |
268 | 1 | 0 | |
|
Green Valley MHP Casper · Natrona County |
265 | 0 | 0 | |
|
Kaycee, Town of Kaycee · Johnson County |
263 | 1 | 0 | |
|
Nora's Fish Creek Inn Wilson · Teton County |
263 | 1 | 0 | |
|
Camp Creek Inn Jackson · Teton County |
260 | 0 | 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.