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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Macon County PWSD 1

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
2012N/A00N/A
2013ND160ND
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
2013-03-27AB94684ND
2013-03-27AB94682ND
2013-03-27AB94680ND
2013-03-27AB94686ND
2013-05-28AB97370ND
2013-05-28AB97368ND
2013-05-28AB97372ND
2013-05-28AB97374ND
2013-08-28AC08966ND
2013-08-28AC08964ND
2013-08-28AC08960ND
2013-08-28AC08962ND
2013-11-25AC14967ND
2013-11-25AC14961ND
2013-11-25AC14963ND
2013-12-30AC16507ND