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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Trico Water Company

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND110ND
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
2015-02-18201502200362AMND
2015-02-18201502200460AMND
2015-02-18201502210060AMND
2015-02-18201502200388AMND
2015-02-18201502200359AMND
2015-02-18201502200416AMND
2015-08-19201508210230AMND
2015-08-19201508210269AMND
2015-08-19201508210348AMND
2015-08-19201508210249AMND
2015-08-19201508210212AMND