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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Charlotte Water

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

 

24

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
2013ND60ND
2014ND180ND
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
2013-10-3035114055005AMND
2013-10-3035114055009AMND
2013-10-3035114055003AMND
2013-10-3035114055011AMND
2013-10-3035114055007AMND
2013-10-3035114055001AMND
2014-01-3035124487013AMND
2014-01-3035124487011AMND
2014-01-3035124487005AMND
2014-01-3035124487003AMND
2014-01-3035124487001AMND
2014-01-3035124487007AMND
2014-04-2935136065011AMND
2014-04-2935136065007AMND
2014-04-2935136065003AMND
2014-04-2935136065001AMND
2014-04-2935136065009AMND
2014-04-2935136065005AMND
2014-07-3035148391009AMND
2014-07-3035148391007AMND
2014-07-3035148391005AMND
2014-07-3035148391002AMND
2014-07-3035148391001AMND
2014-07-3135148391011AMND