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National Drinking Water Database

Gross beta particle activity (pCi/L) in Delaware

Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits. [read more]

The Most Polluted Communities in Delaware

4 water utilities reported detecting Gross beta particle activity (pCi/L) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Gross beta particle activity (pCi/L) level

RankSystem Population Served Positive test results of total reported tests Average Level
1United Water Delaware
Wilmington, DE
105,2703 of 33.85 pCi/L
(2.86 to 4.92 pCi/L)
2Artesian Water Company
Newark, DE
201,0002 of 23.76 pCi/L
(3.32 to 4.19 pCi/L)
3Wilmington Water Department
Wilmington, DE
140,0005 of 53.06 pCi/L
(2.34 to 4.05 pCi/L)
4Newark Water Department
Newark, DE
36,1303 of 32.34 pCi/L
(1.31 to 3.82 pCi/L)

Health Based Limits for Gross beta particle activity (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 Gross beta particle activity (pCi/L) in Delaware

There are no violations reported for this contaminant in Delaware