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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Desert Water Agency

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

MORE ABOUT THIS CONTAMINANT

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND300ND
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
2014-03-17201403190406AMND
2014-03-17201403190389AMND
2014-03-17201403190391AMND
2014-03-17201403190416AMND
2014-03-17201403190414AMND
2014-03-17201403190395AMND
2014-03-17201403190410AMND
2014-03-17201403190393AMND
2014-03-17201403190412AMND
2014-03-17201403190404AMND
2014-03-17201403190408AMND
2014-06-16201406180480AMND
2014-06-16201406180482AMND
2014-06-16201406180478AMND
2014-06-16201406180476AMND
2014-10-06201410071175AMND
2014-10-06201410071169AMND
2014-10-06201410071173AMND
2014-10-06201410071163AMND
2014-10-06201410071188AMND
2014-10-06201410071171AMND
2014-10-07201410071114AMND
2014-10-07201410071122AMND
2014-10-07201410071116AMND
2014-10-07201410071120AMND
2014-10-07201410071118AMND
2014-12-16201412170215AMND
2014-12-16201412170217AMND
2014-12-16201412170219AMND
2014-12-16201412170213AMND