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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Ozark Utilities Board

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
2014ND90ND
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
2014-09-2435156683011AMND
2014-09-2435156683005AMND
2014-09-2435156683007AMND
2014-09-2435156683009AMND
2014-09-2435156683001AMND
2014-09-2435156683003AMND
2014-09-2635157135001AMND
2014-09-2635157135005AMND
2014-09-2635157135003AMND
2015-03-0435178814013AMND
2015-03-0435178814011AMND
2015-03-0435178814003AMND
2015-03-0435178814015AMND
2015-03-0435178814001AMND
2015-03-0435178814017AMND
2015-03-0435178814009AMND
2015-03-0435178814007AMND
2015-03-0435178814005AMND