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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Marion Municipal Water Department

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

 

16

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
2014ND80ND
2015ND20ND
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
2013-10-0723764301ND
2013-10-0723764201ND
2013-10-0723763901ND
2013-10-0723763801ND
2013-10-0723763701ND
2013-10-0723764101ND
2014-04-0825311301ND
2014-04-0825311401ND
2014-04-0825310901ND
2014-04-0825311201ND
2014-04-0825311001ND
2014-04-0825311501ND
2014-10-0727287701ND
2014-10-0727287601ND
2015-04-0728660101ND
2015-04-0728660201ND