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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Mobile Area Water and Sewer

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
2013ND40ND
2014ND120ND
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
2013-11-042924765ND
2013-11-042924455ND
2013-11-042924451ND
2013-11-042924441ND
2014-02-122973535ND
2014-02-122973512ND
2014-02-122973531ND
2014-02-122973499ND
2014-05-083022314ND
2014-05-083022340ND
2014-05-083022318ND
2014-05-083022334ND
2014-08-203088264ND
2014-08-203088289ND
2014-08-203088260ND
2014-08-203088279ND