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EWG's Tap Water Database — 2019 UPDATE

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Barium

Miramar (East & West) Plants

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
20133.00 ppb21ND - 6.00 ppb
20143.50 ppb21ND - 7.00 ppb
20152.50 ppb21ND - 5.00 ppb
20160.1000 ppb21ND - 0.200 ppb
20172.30 ppb220.800 ppb - 3.80 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 Result
2012-09-13ND
2012-09-13ND
2013-09-106.00 ppb
2013-09-10ND
2014-09-097.00 ppb
2014-09-09ND
2015-09-095.00 ppb
2015-09-09ND
2016-09-13ND
2016-09-130.200 ppb
2017-09-290.800 ppb
2017-09-293.80 ppb