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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Lebanon

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
20130.0631 ppb161ND - 1.01 ppb
2014N/A00N/A
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
2013-04-23AB96333ND
2013-04-23AB96347ND
2013-04-23AB96343ND
2013-04-23AB96341ND
2013-04-23AB96345ND
2013-04-23AB96335ND
2013-04-23AB96339ND
2013-04-23AB96337ND
2013-10-22AC136371.01 ppb
2013-10-22AC13623ND
2013-10-22AC13635ND
2013-10-22AC13631ND
2013-10-22AC13633ND
2013-10-22AC13625ND
2013-10-22AC13629ND
2013-10-22AC13627ND