The Power of Information

National Drinking Water Database


Radium-228 in Missouri


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

The Most Polluted Communities in Missouri

307 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)
1Mineral Point
Mineral Point, MO
40015 of 1511.87 pCi/L
(8.9 to 14.4 pCi/L)
2Park Hills
Park Hills, MO
12,55514 of 176.85 pCi/L
(0 to 13.1 pCi/L)
3Wycliff Meadows Subd
Pilot Knob, MO
1009 of 96.4 pCi/L
(5.7 to 7.2 pCi/L)
4Farmington
Farmington, MO
11,22429 of 296.37 pCi/L
(2.7 to 8.67 pCi/L)
5Hunters Ridge Subd
Farmington, MO
23719 of 206.03 pCi/L
(0 to 7.9 pCi/L)
6Walnut Grove Mhp
Farmington, MO
13518 of 185.58 pCi/L
(3.6 to 7.4 pCi/L)
7Potosi
Potosi, MO
2,68317 of 194.83 pCi/L
(0 to 14.35 pCi/L)
8Pilot Knob Rural WD #1 Doe Run Area
MO
255 of 54.76 pCi/L
(1.6 to 10 pCi/L)
9Farmington Correctional Center
Farmington, MO
3,27324 of 244.05 pCi/L
(1.8 to 6.18 pCi/L)
10Town & Country Mobile Home Park
St Charles, MO
7514 of 143.97 pCi/L
(1.6 to 5.1 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 Missouri

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

Violation TypeNumber of Violations
Failure to monitor regularly18