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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Suez

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

 

44

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
2013N/A00N/A
2014ND440ND
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
2014-01-27201401280197AMND
2014-01-27201401280213AMND
2014-01-27201401280230AMND
2014-01-27201401280199AMND
2014-04-23201404240197AMND
2014-04-23201404240378AMND
2014-04-23201404240342AMND
2014-04-23201404240446AMND
2014-04-23201404240561AMND
2014-04-23201404240478AMND
2014-04-29201404300479AMND
2014-04-29201404300778AMND
2014-04-29201404300470AMND
2014-04-29201404300766AMND
2014-04-29201404300466AMND
2014-04-29201404300473AMND
2014-04-30201405010503AMND
2014-04-30201405010395AMND
2014-04-30201405010391AMND
2014-04-30201405010429AMND
2014-04-30201405010408AMND
2014-04-30201405010475AMND
2014-07-29201407300233AMND
2014-07-29201407300313AMND
2014-07-29201407300198AMND
2014-07-29201407300200AMND
2014-10-06201410070289AMND
2014-10-06201410070343AMND
2014-10-06201410070313AMND
2014-10-06201410070321AMND
2014-10-07201410080382AMND
2014-10-07201410080463AMND
2014-10-07201410080467AMND
2014-10-07201410080388AMND
2014-10-09201410100225AMND
2014-10-09201410100267AMND
2014-10-14201410150249AMND
2014-10-14201410150227AMND
2014-10-14201410150150AMND
2014-10-14201410150153AMND
2014-10-15201410160378AMND
2014-10-15201410160351AMND
2014-10-15201410160296AMND
2014-10-15201410160328AMND