Tapcensus

Combined Uranium violations in Wyoming

22 active public water systems in Wyoming had a Combined Uranium violation in the past three years, 2 of them in the latest quarter of EPA's data. What Combined Uranium is and why it matters.

Health effects: Uranium poses both radiological and chemical health risks. Chronic exposure is primarily associated with kidney damage due to its chemical toxicity as a heavy metal. The radiological risk — increased cancer probability — is also present but secondary to the nephrotoxic concern at drinking water concentrations. There is no safe threshold for radiation exposure.

Systems with a Combined Uranium violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Rolling Hills, Town of
Rolling Hills · Converse County 		450 3 0
Trail Ridge Water System
Lincoln County 		100 3 0
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
Cokeville, Town of
Cokeville · Lincoln County 		535 9 0
Farson Eden School
Farson · Sweetwater County 		530 6 0
Glendo, Town of
Glendo · Platte County 		289 5 1
Orchard Valley Water Company
Cheyenne · Laramie County 		260 3 0
West End Water District
Newcastle · Weston County 		225 6 1
Jade MHC
Riverton · Fremont County 		200 3 1
North Alpine I&s District
Alpine · Lincoln County 		200 9 0
Albin, Town of
Albin · Laramie County 		181 9 5
Mountain View Acres
Riverton · Fremont County 		165 8 0
Stone Creek HOA
Torrington · Goshen County 		100 9 1
Cottonwood Acres
Torrington · Goshen County 		95 2 0
Turnerville Water and Sewer District
Bedford · Lincoln County 		90 4 1
Opal, Town of
Opal · Lincoln County 		65 3 0
Lance Creek Water District
Lance Creek · Niobrara County 		55 5 2
Evergreen Mobile Home Park
Cheyenne · Laramie County 		35 10 2
Teton Science School-Wilson Campus
Jackson · Teton County 		31 7 0
Hagens Estates
Gillette · Campbell County 		29 9 0
About this data

A system is counted once if any of its violations in the past three years involved Combined Uranium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Combined Uranium 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.