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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

JBMDL-Dix Main System

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
2013ND40ND
2014ND80ND
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
2013-12-1735120172003AMND
2013-12-1735120172007AMND
2013-12-1735120172005AMND
2013-12-1735120172001AMND
2014-03-1735130447003AMND
2014-03-1735130447001AMND
2014-06-2635143918006AMND
2014-06-2635143918007AMND
2014-06-2635143918001AMND
2014-06-2635143918003AMND
2014-09-0835154318003AMND
2014-09-0835154318001AMND