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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

City of Rexburg

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

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
2014-08-27201408290812AMND
2014-08-27201408300011AMND
2014-08-27201408300015AMND
2014-08-27201408300005AMND
2014-08-27201409020076AMND
2014-08-27201408300007AMND
2014-08-27201408300009AMND
2014-08-27201408300003AMND
2014-08-27201408290800AMND
2014-08-27201408300013AMND
2015-02-11201502120469AMND
2015-02-11201502130048AMND
2015-02-11201502120651AMND
2015-02-11201502130064AMND
2015-02-11201502130052AMND
2015-02-17201502191119AMND
2015-02-17201502190991AMND
2015-02-17201502191189AMND
2015-02-17201502191169AMND
2015-02-17201502191021AMND