All water systems in Wyoming
773 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Arng-Camp Guernsey Cantonment Camp Guernsey · Platte County |
2,000 | 7 | 0 | |
|
Ethete Water System County |
1,950 | 4 | 1 | |
|
Wydot-Orin Junction Rest Area Casper · Converse County |
1,900 | 0 | 0 | |
|
Leisure Valley Inc/ Star Valley RV Park Thayne · Lincoln County |
1,897 | 6 | 1 | |
|
Gtnp-Jackson Lake Lodge Moose · Teton County |
1,830 | 0 | 0 | |
|
Dubois, Town of Dubois · Fremont County |
1,822 | 1 | 0 | |
|
Bridger Valley Joint Powers Board Lyman · Uinta County |
1,728 | 2 | 0 | |
|
Saratoga, Town of Saratoga · Carbon County |
1,720 | 6 | 0 | |
|
WY Dot Lusk Rest Area Lusk · Niobrara County |
1,700 | 1 | 0 | |
|
WY Dot-Fort Steele Rest Area Rawlins · Carbon County |
1,660 | 2 | 0 | |
|
Vista West Water Company Casper · Natrona County |
1,600 | 1 | 0 | |
|
Lusk, Town of Lusk · Niobrara County |
1,576 | 4 | 0 | |
|
Love`s Travel Center Cheyenne · Laramie County |
1,545 | 1 | 0 | |
|
Travel Centers of America Cheyenne · Laramie County |
1,525 | 0 | 0 | |
|
Ynp-Norris Yellowstone Np · Park County |
1,515 | 3 | 0 | |
|
Gtnp-Signal Mtn Moose · Teton County |
1,514 | 0 | 0 | |
|
Pioneer Water & Sewer District Mills · Natrona County |
1,500 | 3 | 1 | |
|
Rafter J Subdivision HOA Jackson · Teton County |
1,500 | 5 | 1 | |
|
WY Dot-Summit Rest Area Laramie · Albany County |
1,500 | 1 | 0 | |
|
Aspens Pines W&s District Jackson · Teton County |
1,400 | 0 | 0 | |
|
Alpine, Town of Alpine · Lincoln County |
1,300 | 1 | 0 | |
|
Jackson Hole Airport Jackson · Teton County |
1,300 | 0 | 0 | |
|
Ranchester, Town of Ranchester · Sheridan County |
1,297 | 0 | 0 | |
|
Antelope Valley I&s District (avisd) Gillette · Campbell County |
1,280 | 0 | 0 | |
|
Sundance, City of Sundance · Crook County |
1,279 | 0 | 0 | |
|
WY Dot-Star Valley Rest Area Afton · Lincoln County |
1,260 | 0 | 0 | |
|
Basin, Town of Basin · Big Horn County |
1,250 | 1 | 0 | |
|
Mountain View, Town of Mountain View · Uinta County |
1,250 | 0 | 0 | |
|
Cheyenne Hills Church Laramie County |
1,211 | 0 | 0 | |
|
Ynp Madison Junction Water System Yellowstone Nt · Teton County |
1,205 | 2 | 0 | |
|
Bear River Regional Joint Powers Evanston · Uinta County |
1,200 | 0 | 0 | |
|
Pine Bluffs, Town of Pine Bluffs · Laramie County |
1,186 | 2 | 0 | |
|
Alcova Resort Alcova · Natrona County |
1,165 | 0 | 0 | |
|
Guernsey, Town of Guernsey · Platte County |
1,157 | 2 | 0 | |
|
Upton, Town of Upton · Weston County |
1,100 | 0 | 0 | |
|
Winchester Hills Cheyenne · Laramie County |
1,078 | 0 | 0 | |
|
Ynp-Tower Junction Ranger Station Yellowstone Np · Teton County |
1,050 | 1 | 0 | |
|
Burns Board of Public Utilities Burns · Laramie County |
1,024 | 0 | 0 | |
|
Super Pumper/sinclair #5 Cheyenne · Laramie County |
1,022 | 2 | 0 | |
|
Hoback Stores, Inc. Dba Hoback Market Jackson · Teton County |
1,018 | 1 | 0 | |
|
Dornan`s Moose Enterprises Moose · Teton County |
1,010 | 0 | 0 | |
|
Moorcroft, Town of Moorcroft · Crook County |
1,009 | 1 | 0 | |
|
Pioneer Mobile Home Park Green River · Sweetwater County |
1,000 | 0 | 0 | |
|
WY Dot-Evanston Port of Entry Evanston · Uinta County |
1,000 | 0 | 0 | |
|
Washakie Rural Water System Washakie County |
990 | 0 | 0 | |
|
Dayton, Town of Dayton · Sheridan County |
957 | 1 | 0 | |
|
WE Soda Alkali, LLC Green River · Sweetwater County |
950 | 2 | 0 | |
|
Clearview I&s District Rock Springs · Sweetwater County |
930 | 1 | 1 | |
|
Teton Village Water & Sewer District Teton Village · Teton County |
906 | 1 | 0 | |
|
Melody Ranch Improvement & Service Dist. Jackson · Teton County |
900 | 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.