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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Dalton Utilities

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

 

24

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
2013N/A00N/A
2014N/A00N/A
2015ND240ND
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
2015-03-0435178480003AMND
2015-03-0435178480001AMND
2015-03-0935178704001AMND
2015-03-3135181774003AMND
2015-03-3135181774005AMND
2015-03-3135181774001AMND
2015-06-0935192388003AMND
2015-06-0935192388011AMND
2015-06-0935192388007AMND
2015-06-0935192388009AMND
2015-06-0935192388005AMND
2015-06-0935192388001AMND
2015-09-0935206664001AMND
2015-09-0935206663001AMND
2015-09-0935206665001AMND
2015-09-0935206665003AMND
2015-09-0935206663003AMND
2015-09-0935206664003AMND
2015-12-0835220221012AMND
2015-12-0835220221008AMND
2015-12-0835220221001AMND
2015-12-0835220221010AMND
2015-12-0835220221003AMND
2015-12-0835220221006AMND