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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

City of North Platte

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.164 ppb284ND - 1.30 ppb
20140.0846 ppb262ND - 1.20 ppb
2015N/A00N/A
2016N/A00N/A
2017N/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
2013-10-01201310030397AMND
2013-10-01201310030462AM1.10 ppb
2013-10-01201310030486AMND
2013-10-01201310030247AMND
2013-10-01201310030381AMND
2013-10-01201310030387AMND
2013-10-01201310030488AMND
2013-10-01201310030318AMND
2013-10-01201310030394AMND
2013-10-01201310030175AMND
2013-10-01201310040263AMND
2013-10-01201310030407AM1.000 ppb
2013-10-01201310030367AMND
2013-10-01201310030497AMND
2013-10-02201310040117AMND
2013-10-02201310040143AMND
2013-10-02201310040242AMND
2013-10-02201310040126AMND
2013-10-02201310040156AMND
2013-10-02201310040158AMND
2013-10-02201310040270AMND
2013-10-02201310040131AMND
2013-10-02201310040208AMND
2013-10-02201310040232AM1.30 ppb
2013-10-02201310040166AMND
2013-10-02201310040150AMND
2013-10-02201310040154AMND
2013-10-02201310040139AM1.20 ppb
2014-04-14201404160602AMND
2014-04-14201404160896AMND
2014-04-14201404160594AMND
2014-04-14201404160577AMND
2014-04-14201404160892AMND
2014-04-14201404160626AMND
2014-04-14201404160738AMND
2014-04-14201404160823AMND
2014-04-14201404160903AMND
2014-04-14201404160569AMND
2014-04-14201404160608AMND
2014-04-14201404160561AMND
2014-04-14201404160573AMND
2014-04-14201404160640AMND
2014-04-15201404160812AMND
2014-04-15201404160825AMND
2014-04-15201404160831AMND
2014-04-15201404160598AM1.20 ppb
2014-04-15201404160634AMND
2014-04-15201404160915AMND
2014-04-15201404160632AM1.000 ppb
2014-04-15201404160575AMND
2014-04-15201404160606AMND
2014-04-15201404160616AMND
2014-04-15201404160600AMND
2014-04-15201404160624AMND