Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Cobalt

Centralia Utilities

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
2012N/A00N/A
2013ND120ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2013-04-231023536013ND
2013-04-231023536006ND
2013-04-231023536011ND
2013-04-231023536001ND
2013-04-231023536003ND
2013-04-231023536008ND
2013-10-151053895004ND
2013-10-151053895014ND
2013-10-151053895010ND
2013-10-151053895012ND
2013-10-151053895007ND
2013-10-151053895001ND