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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Salem Water

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND90ND
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
2014-12-09Y143440015ND
2014-12-09Y143440013ND
2014-12-09Y143440014ND
2015-03-11Y150710033ND
2015-03-11Y150710032ND
2015-03-11Y150710034ND
2015-06-10Y151620017ND
2015-06-10Y151620016ND
2015-06-10Y151620018ND
2015-09-09Y152530010ND
2015-09-09Y152530009ND
2015-09-09Y152530011ND