Nitrate-Nitrite (Combined) violations in Wyoming
107 active public water systems in Wyoming had a Nitrate-Nitrite (Combined) violation in the past three years, 7 of them in the latest quarter of EPA's data. What Nitrate-Nitrite (Combined) is and why it matters.
Systems with a Nitrate-Nitrite (Combined) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Super Pumper/sinclair #5 Cheyenne · Laramie County |
1,022 | 2 | 0 | |
|
Lds-Buffalo Ridge Church Cheyenne · Laramie County |
530 | 2 | 1 | |
|
Lyman KOA Campground Lyman · Uinta County |
154 | 1 | 0 | |
|
Lds Larmie WY Stake Rec Camp/batel Ranch Laramie · Albany County |
150 | 3 | 1 | |
|
Trail Ridge Water System Lincoln County |
100 | 3 | 0 | |
|
Cottonwood Acres Torrington · Goshen County |
95 | 2 | 0 | |
|
Cheyenne Shrine Club Cheyenne · Laramie County |
25 | 1 | 0 | |
|
Rawlins Water Supply, City of Rawlins · Carbon County |
9,006 | 6 | 1 | |
|
Wheatland, Town of Wheatland · Platte County |
3,659 | 6 | 1 | |
|
Greybull, Town of Greybull · Big Horn County |
2,080 | 3 | 1 | |
|
Leisure Valley Inc/ Star Valley RV Park Thayne · Lincoln County |
1,897 | 6 | 1 | |
|
Ynp-Norris Yellowstone Np · Park County |
1,515 | 3 | 0 | |
|
Marbleton, Town of Marbleton · Sublette County |
861 | 7 | 1 | |
|
Brush Creek Ranch Saratoga · Carbon County |
717 | 2 | 1 | |
|
Cokeville, Town of Cokeville · Lincoln County |
535 | 9 | 0 | |
|
Farson Eden School Farson · Sweetwater County |
530 | 6 | 0 | |
|
Antelope Butte Ski Area Dayton · Big Horn County |
527 | 3 | 0 | |
|
Grand Teton Park RV Resort Moran Jct · Teton County |
502 | 3 | 1 | |
|
Pub Place Jackson · Teton County |
497 | 6 | 0 | |
|
Prairie Wind Elementary School Cheyenne · Laramie County |
491 | 1 | 0 | |
|
Nordic Ranches Water, Llc. Alpine · Lincoln County |
465 | 3 | 0 | |
|
Arbys Restaurant #7432 Cheyenne · Laramie County |
386 | 3 | 0 | |
|
CV Laramie Mhp, LLC Laramie · Albany County |
375 | 2 | 0 | |
|
Arng-Guernsey Training Camp Guernsey · Platte County |
302 | 2 | 0 | |
|
Targhee Nf-Reunion Flat Campground Teton County |
300 | 2 | 0 | |
|
WY Dot-Cheyenne River RA Bill · Converse County |
300 | 1 | 0 | |
|
Glendo, Town of Glendo · Platte County |
289 | 5 | 1 | |
|
Kaycee, Town of Kaycee · Johnson County |
263 | 1 | 0 | |
|
Nora's Fish Creek Inn Wilson · Teton County |
263 | 1 | 0 | |
|
Trailshead Lodge Laramie · Albany County |
250 | 2 | 0 | |
|
Aladdin, Town of Crook County |
211 | 3 | 1 | |
|
B&a Marina Glendo · Platte County |
200 | 2 | 0 | |
|
North Alpine I&s District Alpine · Lincoln County |
200 | 9 | 0 | |
|
Albin, Town of Albin · Laramie County |
181 | 9 | 5 | |
|
Douglas KOA CG & Pine Meadows MHP Douglas · Converse County |
165 | 1 | 0 | |
|
Squaw Creek Water District Jackson · Teton County |
160 | 4 | 1 | |
|
Jacz Drive in and RV Park Etna · Lincoln County |
158 | 3 | 0 | |
|
Bighorn Resort LLC Worland · Big Horn County |
154 | 2 | 0 | |
|
Wilson Gas Wilson · Teton County |
154 | 2 | 0 | |
|
Bhnf-Burgess RV Dump Station Sheridan County |
150 | 2 | 0 | |
|
Black Butte Coal Company Point Of Rocks · Sweetwater County |
150 | 1 | 0 | |
|
WY Dot-Torrington Port of Entry Torrington · Goshen County |
150 | 2 | 0 | |
|
Frontier Mart Torrington · Goshen County |
140 | 1 | 0 | |
|
Daniel Junction Sublette County |
125 | 1 | 0 | |
|
The Station Boulder · Sublette County |
125 | 2 | 0 | |
|
Crooked Creek Guest Ranch Dubois · Fremont County |
123 | 3 | 0 | |
|
Little Bear Inn Cheyenne · Laramie County |
112 | 1 | 0 | |
|
Sleeping Giant Ski Area Cody · Park County |
112 | 1 | 0 | |
|
Sand Creek Trading Post Beulah · Crook County |
110 | 3 | 0 | |
|
White Pine Resort Pinedale · Sublette County |
110 | 3 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate-Nitrite (Combined), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate-Nitrite (Combined) alone.
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.