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National Drinking Water Database

Alpha particle activity (incl. radon & uranium) in Iowa

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

The Most Polluted Communities in Iowa

282 water utilities reported detecting Alpha particle activity (incl. radon & 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 (incl. radon & uranium) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Riverton Water Works
Riverton, IA
3041 of 140.3 pCi/L
(40.3 pCi/L)
2Lacina Meadows Residential Subdivision
Iowa City, IA
3810 of 1020.15 pCi/L
(13.7 to 30.3 pCi/L)
3Sleepy Hollow Campground & RV Park
Oxford, IA
702 of 219.1 pCi/L
(18.8 to 19.4 pCi/L)
4Jolley Water Supply
Jolley, IA
541 of 118.5 pCi/L
(18.5 pCi/L)
5Brunsville Municipal Water Supply
Brunsville, IA
1551 of 115.2 pCi/L
(15.2 pCi/L)
6Lehigh Water Supply
Lehigh, IA
49710 of 1015.09 pCi/L
(4 to 27.7 pCi/L)
7Anamosa Municipal Water Supply
Anamosa, IA
5,49411 of 1114.63 pCi/L
(11.1 to 21 pCi/L)
8Livermore Water Supply
Livermore, IA
4311 of 113.1 pCi/L
(13.1 pCi/L)
9Waucoma Water Supply
Calmar, IA
2991 of 112.9 pCi/L
(12.9 pCi/L)
10Pleasantville Water Works
Pleasantvi, IA
1,5372 of 212.8 pCi/L
(12.6 to 13 pCi/L)

Health Based Limits for Alpha particle activity (incl. radon & uranium)

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 (incl. radon & uranium) in Iowa

There are no violations reported for this contaminant in Iowa