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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

United Water Pennsylvania

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

 

18

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
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
2014-02-041070313004ND
2014-02-041070260004ND
2014-02-041070313001ND
2014-02-041070260001ND
2014-02-041070357004ND
2014-02-041070357001ND
2014-05-052005008006ND
2014-05-052005008009ND
2014-05-052005008004ND
2014-05-052005008001ND
2014-08-042021476009ND
2014-08-042021476004ND
2014-08-042021476001ND
2014-08-042021476006ND
2014-11-052038591004ND
2014-11-052038592004ND
2014-11-052038591001ND
2014-11-052038592001ND