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EWG's Tap Water Database

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Cobalt

Del-Co Water Company 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
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
2013N/A00N/A
2014ND130ND
2015ND30ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 70 ppb

The 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
2014-05-05201405060353AMND
2014-05-05201405060272AMND
2014-05-13201405140518AMND
2014-05-13201405140512AMND
2014-05-21201405220455AMND
2014-08-05201408060357AMND
2014-08-05201408060320AMND
2014-08-12201408130376AMND
2014-08-19201408210450AMND
2014-11-17201411180088AMND
2014-11-17201411180174AMND
2014-11-17201411180487AMND
2014-11-18201411190573AMND
2015-02-10201502110510AMND
2015-02-10201502110515AMND
2015-02-11201502120616AMND