The Power of Information

National Drinking Water Database


Alpha particle activity (excl radon and uranium) in Virginia


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

The Most Polluted Communities in Virginia

34 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)
1Courtney Subdivision
Warwick, VA
1871 of 127 pCi/L
(27 pCi/L)
2Erinbrook
Alexandria, VA
1001 of 16.4 pCi/L
(6.4 pCi/L)
3Rainier Estates
Warwick, VA
541 of 16.4 pCi/L
(6.4 pCi/L)
4Manakin Farms
Warwick, VA
9242 of 26.19 pCi/L
(4 to 8.38 pCi/L)
5Gross Point Subdivision
Bedford, VA
2485 of 65.5 pCi/L
(0 to 17.4 pCi/L)
6Woodbridge Mhp Llc
Woodbridge, VA
3204 of 45.21 pCi/L
(4.6 to 5.8 pCi/L)
7Ridgecrest Subdivision
Warwick, VA
2451 of 13.79 pCi/L
(3.79 pCi/L)
8Westlake Water Company
Roanoke, VA
6204 of 43.7 pCi/L
(2.8 to 4.9 pCi/L)
9Marian Manor
Stafford, VA
341 of 13.3 pCi/L
(3.3 pCi/L)
10Waterview Mobile Home Park
Calabasas, VA
1001 of 13.16 pCi/L
(3.16 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 Virginia

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

Violation TypeNumber of Violations
Failure to monitor regularly49
Over maximum contaminant level, Average12