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EWG's Tap Water Database — 2021 UPDATE

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Barium

City of Colton

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

 

26

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
2014ND110ND
2015ND10ND
2016ND10ND
2017ND100ND
2018ND20ND
2019ND10ND

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
2014-08-143761-030-0950ND
2014-08-143761-024-1300ND
2014-08-143761-023-1315ND
2014-08-143761-021-1000ND
2014-08-143761-017-1410ND
2014-08-143761-015-1030ND
2014-08-143761-014-1025ND
2014-08-143761-012-1010ND
2014-08-143761-011-1040ND
2014-08-143761-008-1045ND
2014-09-173761-022-1315ND
2015-08-033761-010-0930ND
2016-06-133761-016-1030ND
2017-09-063761-024-1245ND
2017-09-063761-030-1210ND
2017-09-063761-023-1140ND
2017-09-063761-021-1230ND
2017-09-063761-016-1520ND
2017-09-063761-015-1115ND
2017-09-063761-014-1100ND
2017-09-063761-011-1130ND
2017-09-063761-010-1455ND
2017-09-063761-008-1125ND
2018-06-123761-023-1000ND
2018-09-063761-012-1330ND
2019-07-303761-017-0830ND