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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Town of Gilbert

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

MORE ABOUT THIS CONTAMINANT

 

67

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND610ND
2014ND40ND
2015ND20ND
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
2013-04-22201304220129AMND
2013-04-22201304220110AMND
2013-04-22201304220119AMND
2013-04-22201304220121AMND
2013-04-22201304220108AMND
2013-04-22201304220125AMND
2013-04-22201304220123AMND
2013-04-22201304220127AMND
2013-04-23201304230213AMND
2013-04-23201304230217AMND
2013-04-23201304230215AMND
2013-04-23201304230228AMND
2013-04-23201304230223AMND
2013-04-23201304230221AMND
2013-04-23201304230225AMND
2013-04-23201304230219AMND
2013-04-23201304230211AMND
2013-04-24201304240165AMND
2013-04-24201304240159AMND
2013-04-24201304240161AMND
2013-04-24201304240169AMND
2013-04-24201304240167AMND
2013-04-24201304240157AMND
2013-04-25201304250474AMND
2013-04-25201304250480AMND
2013-04-25201304250476AMND
2013-04-25201304250478AMND
2013-05-09201305100052AMND
2013-07-25201307250333AMND
2013-07-25201307250329AMND
2013-07-25201307250331AMND
2013-07-25201307250327AMND
2013-10-14201310140294AMND
2013-10-14201310140292AMND
2013-10-14201310140282AMND
2013-10-14201310140276AMND
2013-10-14201310140290AMND
2013-10-14201310140286AMND
2013-10-14201310140278AMND
2013-10-14201310140288AMND
2013-10-14201310140284AMND
2013-10-14201310140280AMND
2013-10-15201310150548AMND
2013-10-15201310150556AMND
2013-10-15201310150554AMND
2013-10-15201310150550AMND
2013-10-15201310150552AMND
2013-10-15201310150546AMND
2013-10-16201310160453AMND
2013-10-16201310160451AMND
2013-10-16201310160455AMND
2013-10-16201310160457AMND
2013-10-22201310220324AMND
2013-10-22201310220322AMND
2013-10-22201310220320AMND
2013-10-22201310220326AMND
2013-10-22201310220328AMND
2013-10-23201310230758AMND
2013-10-23201310230754AMND
2013-10-23201310230760AMND
2013-10-23201310230756AMND
2014-01-09201401090391AMND
2014-01-09201401090389AMND
2014-01-21201401210278AMND
2014-01-21201401210282AMND
2015-06-15201506150309AMND
2015-12-13201512140112AMND