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EWG's Tap Water Database — 2019 UPDATE

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Barium

City of Caldwell

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND40ND
2014N/A00N/A
2015N/A00N/A
201624.0 ppb52ND - 60.0 ppb
2017N/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
2013-06-06I1324249ND
2013-06-06I1324254ND
2013-06-06I1324253ND
2013-06-06I1324251ND
2016-06-23I1627624ND
2016-06-23I1627625ND
2016-06-23I162763060.0 ppb
2016-06-23I1627631ND
2016-06-23I162763260.0 ppb