The Power of Information

National Drinking Water Database


Radium-226 in Wyoming


Radium-226 is a radioactive element usually found around uranium deposits. [read more]

The Most Polluted Communities in Wyoming

66 water utilities reported detecting Radium-226 in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Radium-226 level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Town of Hulett
Hulett, WY
4094 of 43.35 pCi/L
(3 to 3.7 pCi/L)
2Bennor Subdivision
Gillette, WY
1744 of 43.1 pCi/L
(3.1 pCi/L)
3Cook Road Water District
Gillette, WY
2564 of 42.9 pCi/L
(2.9 pCi/L)
4Warm Springs Water District
Dubois, WY
554 of 42.8 pCi/L
(1.6 to 3.5 pCi/L)
5Town of Cowley
Cowley, WY
4854 of 41.75 pCi/L
(1.5 to 1.9 pCi/L)
6Southfork Estates
Gillette, WY
1384 of 41.6 pCi/L
(1.6 pCi/L)
7Eight Mile Subdivision
Gillette, WY
874 of 41.2 pCi/L
(1.2 pCi/L)
8Town of Pine Haven
Pine Haven, WY
5504 of 41.18 pCi/L
(0.5 to 1.7 pCi/L)
9Salt Creek Water District
Newcastle, WY
6004 of 41.08 pCi/L
(0.5 to 1.6 pCi/L)
10Town of Moorcroft
Moorcroft, WY
8071 of 11 pCi/L
(1 pCi/L)

Health Based Limits for Radium-226

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.0.05 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-226 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