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EWG's Tap Water Database — 2021 UPDATE

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Barium

Metropolitan District Commission

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.

 

42

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
20147.96 ppb775.80 ppb - 10.6 ppb
20157.86 ppb773.00 ppb - 20.0 ppb
20163.86 ppb771.000 ppb - 7.00 ppb
2017ND70ND
2018ND70ND
20198.71 ppb776.00 ppb - 17.0 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
2014-09-17AC77040GE7.70 ppb
2014-09-17AC77041GE10.6 ppb
2014-09-17AC77043GE7.10 ppb
2014-09-17AC77044GE5.80 ppb
2014-09-17AC77045GE8.20 ppb
2014-09-17AC77046GE7.00 ppb
2014-09-17AC77039GE9.30 ppb
2015-09-09AD09451GE3.00 ppb
2015-09-09AD09452GE5.00 ppb
2015-09-09AD09454GE6.00 ppb
2015-09-09AD09453GE6.00 ppb
2015-09-09AD09446GE8.00 ppb
2015-09-09AD09444GE20.0 ppb
2015-09-09AD09445GE7.00 ppb
2016-08-18AD38610GE6.00 ppb
2016-08-18AD38609GE5.00 ppb
2016-08-18AD38611GE7.00 ppb
2016-08-18AD38617GE2.00 ppb
2016-08-18AD38616GE1.000 ppb
2016-08-18AD38613GE2.00 ppb
2016-08-18AD38612GE4.00 ppb
2017-08-14AD78146GEND
2017-08-14AD78150GEND
2017-08-14AD78149GEND
2017-08-14AD78154GEND
2017-08-14AD78148GEND
2017-08-14AD78147GEND
2017-08-14AD78153GEND
2018-07-18AE01637GEND
2018-07-18AE01636GEND
2018-07-18AE01641GEND
2018-07-18AE01640GEND
2018-07-18AE01632GEND
2018-07-18AE01630GEND
2018-07-18AE01631GEND
2019-12-03CE707406.00 ppb
2019-12-03CE707398.00 ppb
2019-12-03CE707417.00 ppb
2019-12-03CE707338.00 ppb
2019-12-03CE7073417.0 ppb
2019-12-03CE707366.00 ppb
2019-12-03CE707359.00 ppb