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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Midwest City

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

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND260ND
2015ND300ND
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
2014-11-034K05154-01ND
2014-11-034K05154-19ND
2014-11-034K05154-13ND
2014-11-034K05154-25ND
2014-11-034K05154-16ND
2014-11-034K05154-28ND
2014-11-034K05154-34ND
2014-11-034K05154-07ND
2014-11-034K05154-22ND
2014-11-034K05154-37ND
2014-11-034K05154-10ND
2014-11-034K05154-04ND
2014-11-044K05154-54ND
2014-11-044K05154-64ND
2014-11-044K05154-52ND
2014-11-044K05154-62ND
2014-11-044K05154-60ND
2014-11-044K05154-56ND
2014-11-044K05154-48ND
2014-11-044K05154-50ND
2014-11-044K05154-46ND
2014-11-044K05154-42ND
2014-11-044K05154-40ND
2014-11-194K20060-05ND
2014-11-194K20060-03ND
2014-11-194K20060-01ND
2015-02-045B04037-04ND
2015-02-045B04037-01ND
2015-05-045E06213-01ND
2015-05-045E06213-25ND
2015-05-045E06213-07ND
2015-05-045E06213-31ND
2015-05-045E06213-63ND
2015-05-045E06213-10ND
2015-05-045E06213-34ND
2015-05-045E06213-04ND
2015-05-045E06213-28ND
2015-05-045E06213-22ND
2015-05-045E06213-19ND
2015-05-045E06213-16ND
2015-05-045E06213-13ND
2015-05-055E06213-37ND
2015-05-055E06213-39ND
2015-05-055E06213-47ND
2015-05-055E06213-41ND
2015-05-055E06213-43ND
2015-05-055E06213-49ND
2015-05-055E06213-53ND
2015-05-055E06213-55ND
2015-05-055E06213-51ND
2015-05-055E06213-61ND
2015-05-055E06213-57ND
2015-05-055E06213-59ND
2015-05-055E06213-45ND
2015-08-045H04059-01ND
2015-08-045H04059-04ND