Know Your Environment. Protect Your Health.

Cobalt

Coos Bay North Bend Water Board

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
2014ND40ND
2015ND40ND
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

Date Lab ID Result
2014-08-04WA97-SE1-14-14529-33720ND
2014-08-04WA97-SE1-14-14529-33721ND
2014-11-04WA97-SE2-14-21960-49714ND
2014-11-04WA97-SE2-14-21960-49713ND
2015-02-10WA97-SE3-15-02610-6148ND
2015-02-10WA97-SE3-15-02610-6147ND
2015-05-12WA97-SE4-15-09366-21338ND
2015-05-12WA97-SE4-15-09366-21337ND