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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

IL American - Peoria

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

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND160ND
2014ND30ND
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
2013-04-0821365601ND
2013-04-0821365401ND
2013-04-0821365101ND
2013-04-0821366101ND
2013-04-0821365801ND
2013-04-0821365201ND
2013-07-0822745401ND
2013-07-0822745101ND
2013-07-0822738201ND
2013-07-0822744901ND
2013-10-0123655801ND
2013-10-0223656001ND
2013-10-0723655401ND
2013-10-0723655301ND
2013-10-0923655601ND
2013-10-0923656201ND
2014-01-0724378701ND
2014-01-0824372001ND
2014-01-1424378901ND