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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

City of Grand Prairie

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

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND200ND
2014ND200ND
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
2013-07-1635100890013AMND
2013-07-1635100890005AMND
2013-07-1635100890015AMND
2013-07-1635100890003AMND
2013-07-1635100890011AMND
2013-07-1635100890007AMND
2013-07-1635100890027AMND
2013-07-1635100890019AMND
2013-07-1635100890031AMND
2013-07-1635100890001AMND
2013-07-1635100890023AMND
2013-07-1635100890021AMND
2013-07-1635100890017AMND
2013-07-1635100890029AMND
2013-07-1635100890025AMND
2013-07-1635100890009AMND
2013-10-0335111029005AMND
2013-10-0335111029001AMND
2013-10-0335111029003AMND
2013-10-0335111029007AMND
2014-01-1535123078027AMND
2014-01-1535123078023AMND
2014-01-1535123078021AMND
2014-01-1535123078029AMND
2014-01-1535123078031AMND
2014-01-1535123078017AMND
2014-01-1535123078003AMND
2014-01-1535123078019AMND
2014-01-1535123078025AMND
2014-01-1535123078009AMND
2014-01-1535123078015AMND
2014-01-1535123078013AMND
2014-01-1535123078011AMND
2014-01-1535123078005AMND
2014-01-1535123078001AMND
2014-01-1535123078007AMND
2014-04-0335132919005AMND
2014-04-0335132919003AMND
2014-04-0335132919007AMND
2014-04-0335132919001AMND