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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

United Water Pa Mechanicsburg

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
2014ND160ND
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
2014-02-061070648001ND
2014-02-061070648004ND
2014-02-061070649004ND
2014-02-061070649001ND
2014-05-062005395001ND
2014-05-062005395006ND
2014-05-062005395009ND
2014-05-062005395004ND
2014-08-052021804001ND
2014-08-052021807004ND
2014-08-052021804004ND
2014-08-052021807001ND
2014-11-042038258001ND
2014-11-042038258004ND
2014-11-042038258009ND
2014-11-042038258006ND