The Power of Information

National Drinking Water Database


Radium-226 in Illinois


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

The Most Polluted Communities in Illinois

894 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)
1Carbon Hill
Coal City, IL
3921 of 111.9 pCi/L
(11.9 pCi/L)
2Biggsville
Biggsville, IL
35014 of 1411.2 pCi/L
(1.48 to 14.9 pCi/L)
3Gurnee
Gurnee, IL
31,0002 of 210.48 pCi/L
(9.9 to 11.05 pCi/L)
4Arlington Heights
Arlington Heights, IL
76,9433 of 310.2 pCi/L
(8.2 to 13.74 pCi/L)
5Edelstein Water Coop
Edelstein, IL
12517 of 189.91 pCi/L
(0 to 13.5 pCi/L)
6Mapleton
Mapleton, IL
3001 of 19.8 pCi/L
(9.8 pCi/L)
7Glasford
Glasford, IL
1,07622 of 249.56 pCi/L
(0 to 14.9 pCi/L)
8Kingston Mines
Kingston Mines, IL
25919 of 198.44 pCi/L
(0.1 to 12 pCi/L)
9Wilmington
Wilmington, IL
5,6043 of 37.6 pCi/L
(0.7 to 12 pCi/L)
10Bellwood
Bellwood, IL
20,5353 of 37.41 pCi/L
(3.15 to 12.4 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 Illinois

There are no violations reported for this contaminant in Illinois