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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Waterford Township

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

MORE ABOUT THIS CONTAMINANT

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0913 ppb231ND - 2.10 ppb
2014ND230ND
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
2013-12-0324322601ND
2013-12-0324321601ND
2013-12-0324322101ND
2013-12-0324321701ND
2013-12-0324324901ND
2013-12-0324322901ND
2013-12-0324324801ND
2013-12-0324322701ND
2013-12-0424324401ND
2013-12-0424322301ND
2013-12-0424322501ND
2013-12-0424322201ND
2013-12-0424322401ND
2013-12-0424322001ND
2013-12-0424321901ND
2013-12-0424321801ND
2013-12-0424324201ND
2013-12-0424323501ND
2013-12-0424323301ND
2013-12-04243240012.10 ppb
2013-12-0424324601ND
2013-12-0424323801ND
2013-12-0424323101ND
2014-06-0226018401ND
2014-06-0226016301ND
2014-06-0226016201ND
2014-06-0226016101ND
2014-06-0226018001ND
2014-06-0226018201ND
2014-06-0326018701ND
2014-06-0326017801ND
2014-06-0326017101ND
2014-06-0326015601ND
2014-06-0326015401ND
2014-06-0326015901ND
2014-06-0326015501ND
2014-06-0326016901ND
2014-06-0326015701ND
2014-06-0326015801ND
2014-06-0326016001ND
2014-06-0326016401ND
2014-06-0326017301ND
2014-06-0326017601ND
2014-06-0326018601ND
2014-06-0326016501ND
2014-06-0326016701ND