The Power of Information

National Drinking Water Database


Radium-226 in Rhode Island


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

The Most Polluted Communities in Rhode Island

8 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)
1Saugatucket Springs
Hopkinton, RI
1103 of 41.34 pCi/L
(0 to 2.4 pCi/L)
2United Water Rhode Island
Wakefield, RI
17,5006 of 111.16 pCi/L
(0 to 6.28 pCi/L)
3Sunset Cove Recreation Area
West Glocester, RI
301 of 40.56 pCi/L
(0 to 2.23 pCi/L)
4RI Community Living & Support (Ladd
Exeter, RI
3534 of 40.38 pCi/L
(0.13 to 0.6 pCi/L)
5Westerly Water Department
Westerly, RI
38,0008 of 80.3 pCi/L
(0.18 to 0.41 pCi/L)
6Shadow Woods AT Deer Brook
Exeter, RI
304 of 40.28 pCi/L
(0.1 to 0.4 pCi/L)
7Slatersville Public Supply
Slatersville, RI
3,0001 of 10.25 pCi/L
(0.25 pCi/L)
8Kingston Water District
W. Kingston, RI
3,7001 of 50.05 pCi/L
(0 to 0.26 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 Rhode Island

There are no violations reported for this contaminant in Rhode Island