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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Glendale Water Department

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

 

22

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
2013N/A00N/A
2014ND40ND
2015ND180ND
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
2014-10-20201410200329AMND
2014-10-20201410200337AMND
2014-10-20201410200339AMND
2014-10-20201410200331AMND
2015-01-06201501060848AMND
2015-01-06201501060846AMND
2015-01-14201501140736AMND
2015-01-14201501140734AMND
2015-04-20201504200156AMND
2015-04-20201504200150AMND
2015-04-20201504200154AMND
2015-04-20201504200158AMND
2015-04-20201504200148AMND
2015-04-20201504200152AMND
2015-04-27201504270145AMND
2015-04-27201504270136AMND
2015-07-15201507150372AMND
2015-07-15201507150368AMND
2015-07-15201507150374AMND
2015-07-15201507150370AMND
2015-10-15201510150093AMND
2015-10-15201510150095AMND