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EWG's Tap Water Database — 2021 UPDATE

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Barium

California Water Service Company - East Los Angeles

Barium is a mineral present in rocks, soil and water. High concentrations of barium in drinking water increase the risk of cardiovascular disease and hypertension.

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201457.5 ppb43ND - 77.7 ppb
201579.1 ppb53ND - 160.0 ppb
201635.0 ppb62ND - 110.0 ppb
2017ND20ND
201862.0 ppb52ND - 160.0 ppb
201952.5 ppb42ND - 110.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 700 ppb

The EWG Health Guideline of 700 ppb for barium was defined by EWG as benchmark that protects against harm to the kidneys and the cardiovascular system.

EPA Maximum Contaminant
Level (MCL) 2,000 ppb

The legal limit for barium, established in 1991, was based on a 10-week study of barium exposure in 11 adult male volunteers. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-025810-034-1108ND
2014-07-075701-034-093377.0 ppb
2014-07-075701-034-093275.1 ppb
2014-10-015701-034-154077.7 ppb
2015-04-205810-012-1115ND
2015-07-215701-034-134775.3 ppb
2015-08-115810-006-1303160.0 ppb
2015-08-195810-055-1345160.0 ppb
2015-08-195810-004-1310ND
2016-01-125701-034-1215ND
2016-04-125701-034-1020ND
2016-04-195810-011-1326100.0 ppb
2016-05-175810-023-1442110.0 ppb
2016-10-185701-034-1344ND
2016-12-205810-025-1423ND
2017-06-275810-034-1021ND
2017-07-185701-034-1044ND
2018-01-235701-034-0907ND
2018-04-185810-012-1342ND
2018-08-215810-055-1415160.0 ppb
2018-08-215810-004-1500ND
2018-08-305810-006-1145150.0 ppb
2019-04-095701-034-1100ND
2019-04-095810-011-1126110.0 ppb
2019-05-145810-023-1507100.0 ppb
2019-12-199590-025-1105ND