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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Newhall CWD-Newhall

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND100ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/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
2013-02-21201302210760AMND
2013-02-21201302210756AMND
2013-02-21201302210758AMND
2013-05-16201305160497AMND
2013-05-16201305160550AMND
2013-08-22201308220427AMND
2013-08-22201308220423AMND
2013-08-22201308220425AMND
2013-11-21201311220118AMND
2013-11-21201311220104AMND