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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Iredell Water Corporation

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

MORE ABOUT THIS CONTAMINANT

 

90

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND220ND
2014ND340ND
2015ND340ND
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
2013-04-23201304250466AMND
2013-04-23201304250512AMND
2013-04-23201304250457AMND
2013-04-23201304250427AMND
2013-04-23201304250497AMND
2013-04-23201304250468AMND
2013-04-23201304250500AMND
2013-04-23201304250470AMND
2013-04-23201304250464AMND
2013-04-23201304250422AMND
2013-04-23201304250510AMND
2013-10-21201310220149AMND
2013-10-21201310220234AMND
2013-10-21201310220072AMND
2013-10-21201310220238AMND
2013-10-21201310220213AMND
2013-10-21201310220063AMND
2013-10-21201310220221AMND
2013-10-21201310220199AMND
2013-10-21201310220197AMND
2013-10-21201310220092AMND
2013-10-21201310220101AMND
2014-04-28201404290222AMND
2014-04-28201404290241AMND
2014-04-28201404290263AMND
2014-04-28201404290284AMND
2014-04-28201404290268AMND
2014-04-28201404290276AMND
2014-04-28201404290233AMND
2014-04-28201404290278AMND
2014-04-28201404300415AMND
2014-04-28201404290270AMND
2014-04-28201404290292AMND
2014-04-28201404290245AMND
2014-04-28201404290225AMND
2014-04-28201404290255AMND
2014-04-28201404290367AMND
2014-04-28201404290231AMND
2014-04-28201404290227AMND
2014-10-28201410290296AMND
2014-10-28201410290282AMND
2014-10-28201410290273AMND
2014-10-28201410290493AMND
2014-10-28201410290323AMND
2014-10-28201410290495AMND
2014-10-28201410290517AMND
2014-10-28201410290450AMND
2014-10-28201410290528AMND
2014-10-28201410290436AMND
2014-10-28201410290474AMND
2014-10-28201410290397AMND
2014-10-28201410290417AMND
2014-10-28201410290452AMND
2014-10-28201410290539AMND
2014-10-28201410290549AMND
2014-10-29201410290343AMND
2015-04-13201504140759AMND
2015-04-13201504140775AMND
2015-04-13201504140610AMND
2015-04-13201504140625AMND
2015-04-13201504140771AMND
2015-04-13201504140693AMND
2015-04-13201504140657AMND
2015-04-13201504140766AMND
2015-04-13201504140689AMND
2015-04-14201504150937AMND
2015-04-14201504150443AMND
2015-04-14201504150517AMND
2015-04-14201504150526AMND
2015-04-14201504150541AMND
2015-04-14201504150376AMND
2015-04-14201504150407AMND
2015-04-14201504150912AMND
2015-10-28201510290392AMND
2015-10-28201510300303AMND
2015-10-28201510290342AMND
2015-10-28201510300260AMND
2015-10-28201510290362AMND
2015-10-28201510290276AMND
2015-10-28201510290416AMND
2015-10-28201510290302AMND
2015-10-28201510290298AMND
2015-10-29201510300290AMND
2015-10-29201510300305AMND
2015-10-29201510300280AMND
2015-10-29201510300264AMND
2015-10-29201510300309AMND
2015-10-29201510300267AMND
2015-10-29201510300307AMND
2015-10-29201510300332AMND