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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Garrard County Water Assoc Inc

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND160ND
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
2015-01-22201502030050AMND
2015-01-22201502030048AMND
2015-01-22201502030044AMND
2015-01-22201502030046AMND
2015-04-16201504240026AMND
2015-04-16201504240030AMND
2015-04-16201504240024AMND
2015-04-16201504240025AMND
2015-07-24201508040061AMND
2015-07-24201508040065AMND
2015-07-24201508040063AMND
2015-07-24201508040059AMND
2015-10-20201510270331AMND
2015-10-20201510270335AMND
2015-10-20201510270329AMND
2015-10-20201510270333AMND