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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Tinker AFB Bio-env Eng

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

 

55

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND460ND
2014ND50ND
2015ND40ND
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
2013-02-063B06026-04ND
2013-02-063B06026-14ND
2013-02-063B06026-07ND
2013-02-063B06026-12ND
2013-02-063B06026-01ND
2013-02-213B21014-02ND
2013-03-053C05035-18ND
2013-03-053C05035-13ND
2013-03-053C05035-24ND
2013-03-053C05035-20ND
2013-03-053C05035-10ND
2013-03-053C05035-01ND
2013-03-053C05035-16ND
2013-03-053C05035-07ND
2013-03-053C05035-04ND
2013-03-053C05035-22ND
2013-03-163D16033-01ND
2013-04-023D02034-15ND
2013-04-023D02034-07ND
2013-04-023D02034-17ND
2013-04-023D02034-01ND
2013-04-023D02034-13ND
2013-04-163D16033-03ND
2013-05-063E07033-01ND
2013-05-063E07033-04ND
2013-08-083H08015-10AND
2013-08-083H08015-04AND
2013-08-083H08015-07AND
2013-08-083H08015-14AND
2013-08-083H08015-12AND
2013-08-083H08015-01AND
2013-09-043I04039-07AND
2013-09-043I04039-01AND
2013-09-043I04039-04AND
2013-09-043I04039-13AND
2013-09-043I04039-10AND
2013-09-043I04039-20AND
2013-09-043I04039-22AND
2013-09-043I04039-24AND
2013-09-043I04039-18AND
2013-09-173I17046-01ND
2013-10-083J08038-01AND
2013-10-083J08038-04AND
2013-10-083J08038-07AND
2013-10-083J08038-19AND
2013-10-083J08038-15AND
2014-01-304A30009-03ND
2014-01-304A30009-05ND
2014-01-304A30009-01ND
2014-04-244D24003-01ND
2014-08-264H26011-04ND
2015-04-085D08025-01ND
2015-04-085D08033-01ND
2015-08-045H04091-04ND
2015-08-045H04091-01ND