The Power of Information

National Drinking Water Database

Combined Radium (-226 & -228) in New York

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

The Most Polluted Communities in New York

947 water utilities reported detecting Combined Radium (-226 & -228) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Radium (-226 & -228) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Blue Ridge Mobile Court
King Of Prussia, NY
1751 of 110.18 pCi/L
(10.18 pCi/L)
2Cedar Valley Waterworks
Hyde Park, NY
3753 of 39.25 pCi/L
(4.9 to 14.35 pCi/L)
3Lime Ridge Farm
Mahopac Falls, NY
2515 of 157.95 pCi/L
(2 to 12.27 pCi/L)
4Covington Green Condominium
Poughkeepsie, NY
12021 of 217.64 pCi/L
(4.2 to 9.8 pCi/L)
5Cedar Meadow Water Corp/Cameo Farm
Poughquag, NY
20012 of 137.06 pCi/L
(0 to 10.38 pCi/L)
6Holly Park Terrace
Waverly, NY
3501 of 16.86 pCi/L
(6.86 pCi/L)
7Dover Ridge Estates
Poughquag, NY
2508 of 86.84 pCi/L
(4.03 to 12.63 pCi/L)
8Lakeview Terrace Mobile Home P
Hopewell Junction, NY
706 of 66.82 pCi/L
(2.64 to 12.3 pCi/L)
9Greenfield Water District
Hyde Park, NY
1,0503 of 36.24 pCi/L
(4.87 to 8.81 pCi/L)
10Croton Falls Water District
North Salem, NY
17516 of 166.16 pCi/L
(0.19 to 10.44 pCi/L)

Health Based Limits for Combined Radium (-226 & -228)

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
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 Combined Radium (-226 & -228) in New York

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

Violation TypeNumber of Violations
Failure to monitor regularly139
Over maximum contaminant level, Average15
Over maximum contaminant level, Single Sample3