The Power of Information

National Drinking Water Database


Radium-228 in Wyoming


Radium-228 is a radioactive element usually found around uranium deposits. [read more]

The Most Polluted Communities in Wyoming

146 water utilities reported detecting Radium-228 in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Radium-228 level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Bennor Subdivision
Gillette, WY
1745 of 53.06 pCi/L
(0.5 to 3.7 pCi/L)
2Farson Mhc
Farson, WY
801 of 12.7 pCi/L
(2.7 pCi/L)
3Fox Ridge Water System
Gillette, WY
382 of 22.4 pCi/L
(2.4 pCi/L)
4Douglas Koa Campground/Pine Meadows Mhp
Douglas, WY
1504 of 42.08 pCi/L
(0.5 to 4.7 pCi/L)
5Cheyenne Board Pub Utilities
Cheyenne, WY
58,1824 of 41.72 pCi/L
(0.5 to 2.5 pCi/L)
6Section 4 Water System Inc.
Gillette, WY
1204 of 41.6 pCi/L
(1.2 to 2 pCi/L)
7Lakeview Mobile Home Park
Gillette, WY
364 of 41.6 pCi/L
(1.6 pCi/L)
8Farview Water and Sewer District
Riverton, WY
311 of 11.46 pCi/L
(1.46 pCi/L)
9Cooper Sub Mobile Home Park
Cody, WY
1004 of 41.33 pCi/L
(0.5 to 3.8 pCi/L)
10North Star Utility
Jackson, WY
1502 of 21.25 pCi/L
(0.3 to 2.2 pCi/L)

Health Based Limits for Radium-228

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 pCi/L
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.02 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 pCi/L

Violation Summary for Radium-228 in Wyoming

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Wyoming since 2004

Violation TypeNumber of Violations
Failure to monitor regularly15