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EWG's Tap Water Database — 2021 UPDATE

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Barium

Montgomery Water Works

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.

 

35

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
20148.67 ppb32ND - 16.0 ppb
201526.8 ppb84ND - 98.6 ppb
201627.1 ppb84ND - 92.0 ppb
2017ND10ND
201835.1 ppb85ND - 108.0 ppb
201927.1 ppb73ND - 111.0 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
2014-03-191403-00380-110.00 ppb
2014-06-171406-00205-116.0 ppb
2014-09-18AK91805ND
2015-09-01AL3294898.6 ppb
2015-09-01AL3294953.3 ppb
2015-09-01AL3295041.8 ppb
2015-09-01AL3294720.6 ppb
2015-09-01AL32946ND
2015-09-01AL32951ND
2015-09-01AL32953ND
2015-09-01AL32952ND
2016-09-15AL84128ND
2016-09-15AL84127ND
2016-09-15AL84126ND
2016-09-15AL84121ND
2016-09-15AL8412546.1 ppb
2016-09-15AL8412457.7 ppb
2016-09-15AL8412392.0 ppb
2016-09-15AL8412221.2 ppb
2017-09-12AM37420ND
2018-06-05AM76993108.0 ppb
2018-06-05AM7699128.2 ppb
2018-06-05AM7699225.7 ppb
2018-06-06AM76998ND
2018-06-06AM76997ND
2018-06-06AM76996ND
2018-06-06AM7699551.1 ppb
2018-06-06AM7699468.1 ppb
2019-07-10AN36641111.0 ppb
2019-07-10AN3664257.5 ppb
2019-07-10AN3664020.9 ppb
2019-07-10AN36643ND
2019-07-10AN36644ND
2019-07-10AN36645ND
2019-07-10AN36639ND