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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Gross beta particle activity (pCi/L)


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

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

 
Detected
Found above
health guidelines
Found above
legal limit
States
31
18
18
Water utilities
4,792
399
399
People Served
65,656,160
4,034,453
4,034,453

Gross beta particle activity (pCi/L) Exposure by State

Water utilities in 31 states have reported detecting Gross beta particle activity (pCi/L) in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Gross beta particle activity (pCi/L) contaminationWater suppliers reporting Gross beta particle activity (pCi/L) above health-based limits
SystemsPopulationSystemsPopulation
Texas1,98411,850,4712032,979,391
Idaho61451,92519202,248
New Mexico3671,428,20747188,825
Utah1862,066,9988150,458
Maryland1472,383,0749107,185
Illinois65795,59113102,242
Massachusetts42535,8541082,134
Virginia2372,915,0241178,968
Wisconsin117667,888875,037
North Carolina3312,437,9983641,283
New York4492,625,731168,589
Washington71393,66125,664
Wyoming66,43515,600
Nevada1282,330,096102,961
Pennsylvania67824,56012,347
California14529,388,8562828
Indiana72256,7141378
New Hampshire73152315
Ohio111,216,62000
Arkansas191998,20500
Oregon19655,12400
Alabama9604,13400
Delaware4482,40000
Connecticut57256,55900
Rhode Island438,49300
New Jersey122,77000
Kentucky319,08700
Iowa21,55300
Montana71,00700
Missouri172200
Vermont18800
Total4,79265,656,1603994,034,453

The Most Polluted Communities

4,792 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
(Range)
1Grappone Honda
NH
401 of 144 pCi/L
(44 pCi/L)
2High Valley Water Users Association
Vado, NM
712 of 239.38 pCi/L
(38.85 to 39.9 pCi/L)
3Ashley Hills North S/D
Knightdale, NC
3463 of 338.41 pCi/L
(34.13 to 42.52 pCi/L)
4Gerlach Gid
Gerlach, NV
1805 of 538.4 pCi/L
(30 to 45 pCi/L)
5Franklin Domestic Water Users
Boise, ID
752 of 237.75 pCi/L
(30.5 to 45 pCi/L)
6Valley Estates
Lubbock, TX
702 of 237.15 pCi/L
(33.3 to 41 pCi/L)
7Los Arboles Mhp
Las Cruces, NM
3301 of 137 pCi/L
(37 pCi/L)
8Mallards Crossing S/D
Raleigh, NC
6732 of 235.55 pCi/L
(30.7 to 40.39 pCi/L)
9Worton
Chestertown, MD
8051 of 135 pCi/L
(35 pCi/L)
10City of Anton
Anton, TX
1,2001 of 134.9 pCi/L
(34.9 pCi/L)

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

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 Gross beta particle activity (pCi/L)

Are tests routinely required for Gross beta particle activity (pCi/L) by federal law?Yes
Water suppliers reporting tests for Gross beta particle activity (pCi/L) (2004-2009):7,709 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.4 per year