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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Colbert County Rural Water System

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

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND260ND
2015ND120ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/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
2014-09-082028862010ND
2014-09-082028862009ND
2014-09-082028862017ND
2014-09-082028862011ND
2014-09-082028862003ND
2014-09-082028862013ND
2014-09-082028862012ND
2014-09-082028862002ND
2014-09-082028862001ND
2014-09-082028862016ND
2014-09-082028862014ND
2014-09-082028862015ND
2014-12-102044799013ND
2014-12-102044799011ND
2014-12-102044799009ND
2014-12-102044799003ND
2014-12-102044799026ND
2014-12-102044799014ND
2014-12-102044799001ND
2014-12-102044799005ND
2014-12-102044799007ND
2014-12-102044799020ND
2014-12-102044799022ND
2014-12-102044799016ND
2014-12-102044799018ND
2014-12-102044799024ND
2015-03-232061790023ND
2015-03-232061790001ND
2015-03-232061790021ND
2015-03-232061790013ND
2015-03-232061790011ND
2015-03-232061790015ND
2015-03-232061790005ND
2015-03-232061790003ND
2015-03-232061790009ND
2015-03-232061790007ND
2015-03-232061790019ND
2015-03-232061790017ND