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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

City of Glendale

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

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND390ND
2014ND70ND
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
2013-06-03201306030205AMND
2013-06-03201306030203AMND
2013-06-03201306030201AMND
2013-06-03201306030207AMND
2013-06-05201306050320AMND
2013-06-05201306050331AMND
2013-06-05201306050333AMND
2013-06-05201306050322AMND
2013-06-05201306050324AMND
2013-06-05201306050326AMND
2013-06-05201306050318AMND
2013-06-12201306120309AMND
2013-06-12201306120313AMND
2013-06-12201306120311AMND
2013-06-24201306240072AMND
2013-09-03201309030164AMND
2013-09-03201309030166AMND
2013-09-03201309030162AMND
2013-09-04201309040659AMND
2013-09-04201309040661AMND
2013-09-04201309040663AMND
2013-09-12201309120358AMND
2013-09-26201309260282AMND
2013-12-02201312020138AMND
2013-12-02201312020136AMND
2013-12-02201312020140AMND
2013-12-03201312030382AMND
2013-12-03201312030380AMND
2013-12-03201312030378AMND
2013-12-04201312040824AMND
2013-12-04201312040826AMND
2013-12-04201312040822AMND
2013-12-04201312040828AMND
2013-12-04201312040830AMND
2013-12-04201312040820AMND
2013-12-09201312090096AMND
2013-12-10201312100492AMND
2013-12-10201312100488AMND
2013-12-10201312100490AMND
2014-01-16201401160466AMND
2014-03-03201403030040AMND
2014-03-03201403030042AMND
2014-03-03201403030038AMND
2014-03-03201403030044AMND
2014-03-03201403030046AMND
2014-03-27201403270383AMND