The Power of Information

National Drinking Water Database


Radium-228 in Arkansas


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

The Most Polluted Communities in Arkansas

112 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)
1Grand Prairie Regional Water
Stuttgart, AR
13,6514 of 40.99 pCi/L
(0.45 to 1.3 pCi/L)
2Hazen Waterworks
Hazen, AR
1,6684 of 40.95 pCi/L
(0.9 to 1 pCi/L)
3Arsenal Water System
Pine Bluff, AR
2,5772 of 20.9 pCi/L
(0.9 pCi/L)
4Sheridan Waterworks
Sheridan, AR
4,0221 of 10.9 pCi/L
(0.9 pCi/L)
5Holly Grove Waterworks
Holly Grove, AR
1,9647 of 90.82 pCi/L
(0 to 1.3 pCi/L)
6Knobel Waterworks
Knobel, AR
3152 of 20.8 pCi/L
(0.8 pCi/L)
7Roe Waterworks
Roe, AR
1772 of 20.8 pCi/L
(0.8 pCi/L)
8Midway Water Association
Proctor, AR
2,6002 of 20.75 pCi/L
(0.75 pCi/L)
9Walkerville Water Association
Emerson, AR
5162 of 20.7 pCi/L
(0.7 pCi/L)
10Gilmore Waterworks
Gilmore, AR
2922 of 20.7 pCi/L
(0.7 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 Arkansas

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

Violation TypeNumber of Violations
Over maximum contaminant level, Single Sample2