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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Community WC of Green Valley

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND60ND
2014ND60ND
2015N/A00N/A
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
2013-08-272886112ND
2013-08-272886182ND
2013-08-272886145ND
2013-08-272886126ND
2013-08-272886170ND
2013-08-272886152ND
2014-02-242980065ND
2014-02-242980123ND
2014-02-242980131ND
2014-02-242980127ND
2014-02-242980037ND
2014-03-192996138ND