Know Your Environment. Protect Your Health.

Cobalt

City of Lewiston

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND120ND
2014N/A00N/A
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
2013-02-19WA97-SE1-13-03614-8597ND
2013-02-19WA97-SE1-13-03614-8598ND
2013-02-19WA97-SE1-13-3614-8599ND
2013-02-19WA97-SE1-13-03614-8596ND
2013-05-21130522003-002ND
2013-05-21130522003-001ND
2013-08-14130814066-002ND
2013-08-14130814066-001ND
2013-08-21130822019-001ND
2013-08-21130822019-002ND
2013-11-12131112036-002ND
2013-11-12131112036-001ND