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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Alpha particle activity (suspended)


Status: Regulated - EPA has established a maximum legal limit in tapwater for this contaminant.

Alpha particles are a form of radiation released from mining waste polluants and natural sources. [read more]

 
Detected
Found above
health guidelines
Found above
legal limit
States
1
-
-
Water utilities
2
-
-
People Served
3,930
-
-

Alpha particle activity (suspended) Exposure by State

Water utilities in 1 states have reported detecting Alpha particle activity (suspended) in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Alpha particle activity (suspended) contamination
SystemsPopulation
New York23,930
Total23,930

The Most Polluted Communities

2 water utilities reported detecting Alpha particle activity (suspended) 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 (suspended) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Camphill Village Usa Inc
Copake, NY
2351 of 17.8 pCi/L
(7.8 pCi/L)
2Lyons Village
Lyons, NY
3,6951 of 12.1 pCi/L
(2.1 pCi/L)

Health Based Limits for Alpha particle activity (suspended)

StandardDescriptionLevel
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

Testing Summary for Alpha particle activity (suspended)

Are tests routinely required for Alpha particle activity (suspended) by federal law?Yes
Water suppliers reporting tests for Alpha particle activity (suspended) (2005-2008):14 of 47,576
Average testing rate for water supplier reporting tests (2005-2008):0.3 per year