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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Myoma Dunes Mutual Water Company

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND180ND
2014N/A00N/A
2015N/A00N/A
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
2013-02-11100343PND
2013-02-11100344PND
2013-02-11100345PND
2013-02-12100342PND
2013-02-12300466PND
2013-02-12300463PND
2013-02-12300464PND
2013-02-12300465PND
2013-02-13100346PND
2013-08-19301802PND
2013-08-19301801PND
2013-08-19301800PND
2013-08-19301799PND
2013-08-19101894PND
2013-08-19101893PND
2013-08-19101892PND
2013-08-19101891PND
2013-08-19101890PND