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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Golden State Water Company - Orcutt

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND70ND
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
2014-11-06201411070410AMND
2014-11-06201411070412AMND
2014-11-06201411070440AMND
2014-11-06201411070442AMND
2014-11-06201411070414AMND
2014-11-18201411190498AMND
2014-11-24201411250751AMND
2015-05-18201505190480AMND
2015-05-18201505190487AMND
2015-05-18201505190577AMND
2015-05-18201505190575AMND
2015-05-18201505190482AMND
2015-05-18201505190579AMND
2015-05-18201505190493AMND