Know Your Environment. Protect Your Health.

Cobalt

Tualatin Valley Water District

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND100ND
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
2014-08-13201408140405AMND
2014-08-13201408140547AMND
2014-08-13201408140326AMND
2014-08-13201408140336AMND
2014-08-13201408140329AMND
2014-08-13201408140528AMND
2014-11-18201411190456AMND
2014-11-18201411190460AMND
2014-11-18201411190458AMND
2014-11-18201411190462AMND
2015-02-24201502260475AMND
2015-02-25201502260455AMND
2015-02-25201502260316AMND
2015-02-25201502260208AMND
2015-06-29201506300446AMND
2015-06-29201506300309AMND
2015-06-29201506300318AMND
2015-06-29201506300316AMND
2015-06-29201506300295AMND
2015-06-29201506300303AMND