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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

US Army Aviation and Missile Command

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND160ND
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
2015-01-21201501220391AMND
2015-01-21201501220400AMND
2015-01-21201501220609AMND
2015-01-21201501220383AMND
2015-04-16201504170392AMND
2015-04-16201504170140AMND
2015-04-30201504200085AMND
2015-04-30201504200083AMND
2015-07-15201507160198AMND
2015-07-15201507160206AMND
2015-07-15201507160213AMND
2015-07-15201507160196AMND
2015-10-28201510290088AMND
2015-10-28201510290168AMND
2015-10-28201510290112AMND
2015-10-28201510290110AMND