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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

City of Chandler

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

MORE ABOUT THIS CONTAMINANT

 

71

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0141 ppb711ND - 1.000 ppb
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
2014-02-05201402050169AMND
2014-02-05201402050165AMND
2014-02-05201402050167AMND
2014-02-05201402050163AMND
2014-02-05201402050171AMND
2014-02-06201402060575AMND
2014-02-06201402060573AMND
2014-02-06201402060569AMND
2014-02-10201402100062AMND
2014-02-10201402100064AMND
2014-02-10201402100058AMND
2014-02-10201402100066AMND
2014-02-10201402100060AMND
2014-02-11201402110253AMND
2014-02-11201402110267AMND
2014-02-11201402110263AMND
2014-02-11201402110265AMND
2014-02-13201402130308AMND
2014-02-13201402130304AMND
2014-02-13201402130310AMND
2014-02-13201402130306AMND
2014-02-20201402200401AMND
2014-02-20201402200426AMND
2014-02-20201402200405AM1.000 ppb
2014-02-20201402200399AMND
2014-02-20201402200397AMND
2014-02-20201402200403AMND
2014-02-25201402250318AMND
2014-03-11201403110371AMND
2014-05-14201405140569AMND
2014-05-14201405140567AMND
2014-05-14201405140561AMND
2014-05-14201405140565AMND
2014-05-14201405140563AMND
2014-05-19201405190041AMND
2014-08-05201408060488AMND
2014-08-05201408060513AMND
2014-08-05201408060509AMND
2014-08-05201408060511AMND
2014-08-05201408060490AMND
2014-08-05201408060507AMND
2014-08-05201408060492AMND
2014-08-06201408060533AMND
2014-08-06201408060537AMND
2014-08-06201408060539AMND
2014-08-06201408060535AMND
2014-08-07201408070432AMND
2014-08-07201408070420AMND
2014-08-07201408070434AMND
2014-08-07201408070428AMND
2014-08-07201408070424AMND
2014-08-07201408070430AMND
2014-08-07201408070422AMND
2014-08-07201408070426AMND
2014-08-11201408110081AMND
2014-08-11201408110085AMND
2014-08-11201408110087AMND
2014-08-11201408110083AMND
2014-08-12201408120462AMND
2014-08-12201408120456AMND
2014-08-12201408120466AMND
2014-08-12201408120468AMND
2014-08-12201408120464AMND
2014-08-12201408120458AMND
2014-08-12201408120460AMND
2014-11-06201411070160AMND
2014-11-06201411070166AMND
2014-11-06201411070168AMND
2014-11-06201411070162AMND
2014-11-06201411070164AMND
2014-11-18201411180260AMND