The Power of Information

National Drinking Water Database


Alpha particle activity (excl radon and uranium) in New York


Alpha particles are a form of radiation associated with radioactive mining waste pollutants and natural sources. [read more]

The Most Polluted Communities in New York

273 water utilities reported detecting Alpha particle activity (excl radon and uranium) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Alpha particle activity (excl radon and uranium) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Harriman Village
Harriman, NY
3,6771 of 129.07 pCi/L
(29.07 pCi/L)
2Monroe WD #2-Sterl. Man., Hor.
Monroe, NY
1281 of 115 pCi/L
(15 pCi/L)
3Shorehaven Civic Assoc
Holmes, NY
30015 of 1514.63 pCi/L
(7.6 to 28.2 pCi/L)
4Cedar Meadow Water Corp/Cameo Farm
Poughquag, NY
2003 of 411.1 pCi/L
(0 to 15.62 pCi/L)
5Lime Ridge Farm
Mahopac Falls, NY
255 of 510.59 pCi/L
(6.4 to 14.2 pCi/L)
6Cornwall Meadows Townhomes W.S.
Bedford, NY
2301 of 110.2 pCi/L
(10.2 pCi/L)
7Pawling Village
Pawling, NY
2,1814 of 49.44 pCi/L
(4.85 to 13.2 pCi/L)
8Sharon Springs Village
Sharon Springs, NY
5473 of 38.26 pCi/L
(1 to 17.7 pCi/L)
9Dover Ridge Estates
Poughquag, NY
2509 of 97.29 pCi/L
(3.4 to 12.2 pCi/L)
10Rock Terrace Trailer Park
Stamford, NY
1081 of 17.17 pCi/L
(7.17 pCi/L)

Health Based Limits for Alpha particle activity (excl radon and uranium)

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
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.15 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.15 pCi/L
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.15 pCi/L

Violation Summary for Alpha particle activity (excl radon and uranium) 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
Over maximum contaminant level, Average4