The Power of Information

National Drinking Water Database


Radium-226 in Connecticut


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

The Most Polluted Communities in Connecticut

185 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)
1Newbury Crossing Condominium Assn, Inc
Southbury, CT
1323 of 310.66 pCi/L
(7.29 to 12.58 pCi/L)
2Woodhall School, Inc
Bethlehem, CT
682 of 38.64 pCi/L
(0 to 13.63 pCi/L)
3Ledgewood Condominium Assn - Boxwood Dr
Southbury, CT
3615 of 157.86 pCi/L
(5.53 to 11.22 pCi/L)
4Ledgewood Condominium Assn-Douglas Drive
Southbury, CT
5016 of 165.08 pCi/L
(1.41 to 6.9 pCi/L)
520 Station Road - Apt Building
Brookfield, CT
271 of 14.85 pCi/L
(4.85 pCi/L)
6Wildwood Water Company
Old Lyme, CT
1325 of 54.83 pCi/L
(1.4 to 6.8 pCi/L)
7The Marvelwood School-Faculty Houses
CT
255 of 74.01 pCi/L
(0 to 14.09 pCi/L)
8Candlewood Lake Condominium Assn., Inc.
Danbury, CT
1968 of 83.92 pCi/L
(2.87 to 7 pCi/L)
9Meadowbrook Terrace Mobile Home Park
New Haven, CT
1587 of 73.54 pCi/L
(1.35 to 5.68 pCi/L)
10High Meadow Condominiums
Danbury, CT
23712 of 183.15 pCi/L
(0 to 11.05 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 Connecticut

There are no violations reported for this contaminant in Connecticut