Radium-228 violations in Wyoming
20 active public water systems in Wyoming had a Radium-228 violation in the past three years, 2 of them in the latest quarter of EPA's data. What Radium-228 is and why it matters.
Systems with a Radium-228 violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rolling Hills, Town of Rolling Hills · Converse County |
450 | 3 | 0 | |
|
Trail Ridge Water System Lincoln County |
100 | 3 | 0 | |
|
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 | |
|
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 Radium-228, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Radium-228 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.