Know Your Environment. Protect Your Health.

Cobalt

City of Forest Grove

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
2013ND120ND
2014ND40ND
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

Date Lab ID Result
2013-04-172812104ND
2013-04-172812100ND
2013-04-172812130ND
2013-04-172812132ND
2013-07-172863327ND
2013-07-172863370ND
2013-07-172863361ND
2013-07-172863353ND
2013-10-16WA97-SE3-13-19894-45180ND
2013-10-16WA97-SE3-13-19894-45179ND
2013-10-16WA97-SE3-13-19894-45181ND
2013-10-16WA97-SE3-13-19894-45182ND
2014-01-22WA97-SE4-14-01308-3422ND
2014-01-22WA97-SE4-14-01308-3421ND
2014-01-22WA97-SE4-14-01308-3423ND
2014-01-22WA97-SE4-14-01308-3424ND