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National Drinking Water Database


Alpha particle activity in Idaho


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

The Most Polluted Communities in Idaho

2 water utilities reported detecting Alpha particle activity 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 level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Capitol Water Corp
Boise, ID
7,4001 of 117.35 pCi/L
(17.35 pCi/L)
2Aspen Creek Water Company
ID
301 of 16.2 pCi/L
(6.2 pCi/L)

Health Based Limits for Alpha particle activity

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
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

Violation Summary for Alpha particle activity in Idaho

There are no violations reported for this contaminant in Idaho