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 |
|---|---|---|---|---|
|
Buckhorn Bar and Grill Newcastle · Weston County |
104 | 3 | 0 | |
|
Wind River View Campground Boulder · Sublette County |
104 | 3 | 0 | |
|
Wagon Box Inn Story · Sheridan County |
103 | 2 | 0 | |
|
Arrowhead Wyoming LLC Dayton · Sheridan County |
100 | 3 | 1 | |
|
Snake River Mobile Home Park Jackson · Teton County |
100 | 5 | 2 | |
|
Stone Creek HOA Torrington · Goshen County |
100 | 9 | 1 | |
|
Elk View Inn Dayton · Sheridan County |
98 | 1 | 0 | |
|
Longhorn RV and Motel Dubois · Fremont County |
96 | 2 | 0 | |
|
Bear Lodge Dayton · Sheridan County |
93 | 2 | 0 | |
|
Meadowlark Ski Resort Washakie County |
92 | 1 | 0 | |
|
Mountain Cement Company Laramie · Albany County |
90 | 1 | 0 | |
|
Camp Sacajawea Casper · Natrona County |
79 | 2 | 0 | |
|
Platte River Campground Glenrock · Converse County |
78 | 2 | 1 | |
|
South Fork Mountain Lodge Buffalo · Johnson County |
76 | 3 | 1 | |
|
Walcott Service Walcott · Carbon County |
75 | 2 | 1 | |
|
Elk Refuge Inn Jackson · Teton County |
72 | 2 | 0 | |
|
Camp New Fork-Wilderness Adventures Sublette County |
70 | 2 | 0 | |
|
Heart Six Guest Ranch Moran Jct · Teton County |
70 | 1 | 0 | |
|
Luton's Teton Cabins Moran Jct · Teton County |
70 | 2 | 0 | |
|
Brinton Museum Big Horn · Sheridan County |
69 | 2 | 0 | |
|
Opal, Town of Opal · Lincoln County |
65 | 3 | 0 | |
|
Broken Arrow Ranch Jackson · Teton County |
64 | 2 | 0 | |
|
Restway Travel Park Cheyenne · Laramie County |
62 | 2 | 0 | |
|
St. Stephens Indian Mission, Inc. County |
62 | 2 | 0 | |
|
7d Ranch Cody · Park County |
61 | 1 | 0 | |
|
Targhee Village Golf Course Alta · Teton County |
60 | 2 | 0 | |
|
Woods Landing Resort Woods Landing · Albany County |
60 | 3 | 1 | |
|
Granite Canyon Quarry Laramie County |
54 | 1 | 0 | |
|
Old Wilson Schoolhouse Cmty Ctr Wilson · Teton County |
54 | 2 | 0 | |
|
Mountain Village Parks Big Piney · Sublette County |
53 | 10 | 5 | |
|
EL Rancho Village RV Park & Cabins Wheatland · Platte County |
52 | 2 | 0 | |
|
Lava Mountain Lodge Dubois · Fremont County |
52 | 2 | 0 | |
|
Buffalo Bill ST PK North Fork Cody · Park County |
50 | 1 | 0 | |
|
Orin Junction Truck Stop Douglas · Converse County |
50 | 2 | 0 | |
|
The Den Cheyenne · Laramie County |
50 | 3 | 0 | |
|
Akal Energy/tumbleweed Express Laramie · Albany County |
49 | 3 | 2 | |
|
Alcova Lakeview Estates I Casper · Natrona County |
48 | 1 | 0 | |
|
Wilson Hardware Wilson · Teton County |
45 | 2 | 0 | |
|
Akal Energy-Buford Outpost Albany County |
44 | 3 | 2 | |
|
Jeffrey City Water & Sewer District Riverton · Fremont County |
40 | 4 | 2 | |
|
Trail Shop Wapiti · Park County |
40 | 1 | 0 | |
|
J & E Infanger, Inc. Jackson · Teton County |
36 | 2 | 1 | |
|
Lakeview Mobile Home Park Gillette · Campbell County |
36 | 4 | 0 | |
|
Evergreen Mobile Home Park Cheyenne · Laramie County |
35 | 10 | 2 | |
|
Creekside Lodge Cody · Park County |
32 | 1 | 0 | |
|
Teton Science School-Wilson Campus Jackson · Teton County |
31 | 7 | 0 | |
|
Boulder Store/gas Station Boulder · Sublette County |
30 | 3 | 0 | |
|
Btnf-Turpin Meadow CG Moran Jct · Teton County |
30 | 3 | 0 | |
|
Natrona County Parks-Trails Center Mills · Natrona County |
30 | 2 | 1 | |
|
Eden Saloon Eden · Sweetwater County |
29 | 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.