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EWG's Tap Water Database

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Barium

Grayson Utility 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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND10ND
2013ND10ND
2014ND10ND
201531.0 ppb1131.0 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 700 ppb

The health guideline of 700 ppb for barium was defined by the Environmental Protection Agency as a children's health-based limit for 10-day exposure, a non-enforceable federal health advisory. This health guideline protects against harm to internal organs.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 2,000 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)2,000 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-04-06201003593001ND
2011-04-12201104026001ND
2012-04-03201203935001ND
2013-04-02201304270001ND
2014-04-01201404689001ND
2015-04-0720150420800131.0 ppb