The Power of Information

National Drinking Water Database


Radium-226 in Massachusetts


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

The Most Polluted Communities in Massachusetts

138 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)
1Swansea Water District
Swansea, MA
17,3499 of 92.91 pCi/L
(0.71 to 4.7 pCi/L)
2Charlton Housing Authority
Charlton, MA
5013 of 132.25 pCi/L
(1.3 to 3.63 pCi/L)
3Hillcrest Water District
Leicester, MA
1,50022 of 222.15 pCi/L
(0.05 to 3.2 pCi/L)
4Wampus Avenue Apartments
Acton, MA
705 of 51.64 pCi/L
(1.3 to 2.1 pCi/L)
5Strawberry Hill Apartments
Acton, MA
951 of 11.55 pCi/L
(1.55 pCi/L)
6Mount ST Marys Abbey
Wrentham, MA
6021 of 211.5 pCi/L
(0.48 to 2.7 pCi/L)
7Middleborough Water Supply
Middleborough, MA
20,3861 of 11.35 pCi/L
(1.35 pCi/L)
8Stafford Heights Apartments
Charlton, MA
804 of 41.3 pCi/L
(1 to 1.6 pCi/L)
9Lake Grove School
Wendell, MA
12515 of 151.27 pCi/L
(0.55 to 1.96 pCi/L)
10Ashmere Water Service
Hinsdale, MA
662 of 21.25 pCi/L
(0.14 to 2.36 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 Massachusetts

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

Violation TypeNumber of Violations
Failure to monitor regularly11