The Power of Information

National Drinking Water Database


Radium-228 in Connecticut


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

The Most Polluted Communities in Connecticut

268 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)
1Wildwood Water Company
Old Lyme, CT
1326 of 613.43 pCi/L
(11.2 to 14.85 pCi/L)
2The Marvelwood School-Faculty Houses
CT
255 of 76.93 pCi/L
(0 to 13.4 pCi/L)
3Meadowbrook Terrace Mobile Home Park
New Haven, CT
1587 of 73.48 pCi/L
(1.35 to 4.52 pCi/L)
4Briere Community Supply
Putnam, CT
806 of 102.93 pCi/L
(0 to 13.6 pCi/L)
5Avery Hill Water Association
Ledyard, CT
1175 of 52.04 pCi/L
(1.2 to 2.7 pCi/L)
6Scwa-Ledyard Center Division
CT
1964 of 41.7 pCi/L
(1.2 to 2.5 pCi/L)
7Ciccio Court (North)
Plainville, CT
441 of 11.68 pCi/L
(1.68 pCi/L)
8Kenmore Road Assn.-Lower System
Bloomfield, CT
641 of 21.55 pCi/L
(0 to 3.1 pCi/L)
9CTWC - Shoreline Region-Point O Woods
CT
1,0685 of 71.38 pCi/L
(0 to 2.65 pCi/L)
10University of Connecticut - Depot Campus
Storrs, CT
1,0102 of 41.31 pCi/L
(0 to 3.77 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 Connecticut

There are no violations reported for this contaminant in Connecticut