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National Drinking Water Database

Gross beta particle activity (pCi/L) in Washington

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

The Most Polluted Communities in Washington

71 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
1Liberty Lake Sewer & Water District
Liberty Lake, WA
5,0081 of 116.7 pCi/L
(16.7 pCi/L)
2Harrison-Ray-Burbank Water System
Pasco, WA
6561 of 116.7 pCi/L
(16.7 pCi/L)
3Woodglen Prd Water System
Oak Harbor, WA
401 of 115 pCi/L
(15 pCi/L)
4Schoonover Hutterian Brethren
Odessa, WA
351 of 114.6 pCi/L
(14.6 pCi/L)
5Hilltop Water Owners Association
Lummi Island, WA
701 of 113 pCi/L
(13 pCi/L)
6Kelleys Estates
Kennewick, WA
1251 of 111.63 pCi/L
(11.63 pCi/L)
7Kiona Village Court
Olympia, WA
1081 of 111.63 pCi/L
(11.63 pCi/L)
8Sunrise Beach Association
Lopez Island, WA
251 of 111 pCi/L
(11 pCi/L)
9Washtucna Water Department
Washtucna, WA
2501 of 110 pCi/L
(10 pCi/L)
10Pasco Heights Domestic Water Assn
Pasco, WA
1351 of 110 pCi/L
(10 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 Washington

There are no violations reported for this contaminant in Washington