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EWG's Tap Water Database — 2021 UPDATE

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Barium

Golden State Water Company (GSWC) - Southwest

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

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201425.0 ppb143ND - 120.0 ppb
2015N/A00N/A
2016N/A00N/A
20179.23 ppb131ND - 120.0 ppb
2018N/A00N/A
2019N/A00N/A

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
2014-05-132706-005-1314ND
2014-05-132706-070-1325ND
2014-05-132706-069-1127ND
2014-05-132706-064-1104ND
2014-05-132706-062-1017ND
2014-05-132706-061-1037ND
2014-05-132706-045-1204ND
2014-05-132706-043-1140110.0 ppb
2014-05-132706-039-1221ND
2014-05-132706-038-0811120.0 ppb
2014-05-132706-037-0837120.0 ppb
2014-05-132706-036-0953ND
2014-05-132706-011-1356ND
2014-05-132706-010-0915ND
2017-02-239590-073-0924ND
2017-03-239590-011-1240ND
2017-03-299590-005-1345ND
2017-03-299590-070-1307ND
2017-03-299590-045-1145ND
2017-03-299590-039-1235ND
2017-03-299590-036-0915ND
2017-03-299590-010-1050ND
2017-03-309590-069-0845ND
2017-03-309590-043-0920ND
2017-03-309590-038-0725120.0 ppb
2017-03-309590-037-0653ND
2017-04-139590-064-0754ND