Know Your Environment. Protect Your Health.

Cobalt

Naval Air Station/whidbey Island

NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for cobalt. Sample information shown below was taken by City of Oak Harbor.

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for cobalt. Sample information shown below was taken by City of Oak Harbor.

Date Lab ID Result
2013-07-09WA97-SE1-13-12106-27485ND
2013-07-31WA97-SE1-13-12106-27486ND
2013-10-08WA97-SE2-13-19311-43867ND
2013-10-08WA97-SE2-13-19311-43866ND
2014-01-07WA97-SE3-14-00295-746ND
2014-01-07WA97-SE3-14-00295-745ND
2014-04-10WA97-SE4-14-06305-15291ND
2014-04-10WA97-SE4-14-06305-15290ND