The Power of Information

National Drinking Water Database


Radium-226 in New Hampshire


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

The Most Polluted Communities in New Hampshire

464 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)
1Amazon Park
Rochester, NH
11015 of 157.52 pCi/L
(0.1 to 14.4 pCi/L)
2Thornton Central School
NH
2801 of 15.4 pCi/L
(5.4 pCi/L)
3Shadow Lake Mobile Home Park
Salem, NH
5815 of 155.31 pCi/L
(0.1 to 14.9 pCi/L)
4Danville Four Seasons
Danville, NH
1296 of 65.15 pCi/L
(3.1 to 12.5 pCi/L)
5Holiday Acres /Summit
Allenstown, NH
4184 of 45 pCi/L
(0.3 to 11.5 pCi/L)
6Pac /Birch Hill West
Conway, NH
1132 of 24.7 pCi/L
(1 to 8.4 pCi/L)
7Grappone Honda
NH
401 of 14.2 pCi/L
(4.2 pCi/L)
8Ellison Farm Apts
Barrington, NH
459 of 93.87 pCi/L
(2 to 5.2 pCi/L)
9Souhegan Woods
Amherst, NH
2881 of 13.7 pCi/L
(3.7 pCi/L)
10Boumil Grove Condos
Londonderry, NH
7512 of 122.98 pCi/L
(0.1 to 10.2 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 New Hampshire

There are no violations reported for this contaminant in New Hampshire