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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Avion Water Company - Avion

Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND110ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for cobalt was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-17201409180696AMND
2014-09-17201409180782AMND
2014-09-17201409180722AMND
2014-09-18201409200130AMND
2014-09-18201409190416AMND
2014-09-18201409190324AMND
2014-09-18201409190394AMND
2014-09-22201409230173AMND
2014-09-22201409230153AMND
2014-10-16201410170177AMND
2015-03-12201503140142AMND
2015-03-12201503140185AMND
2015-03-18201503190382AMND
2015-03-24201503250484AMND
2015-03-24201503250476AMND
2015-03-25201503260746AMND
2015-03-25201503260673AMND
2015-05-20201505040214AMND
2015-05-20201505040212AMND
2015-07-30201507160160AMND
2015-07-30201507160161AMND