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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Far West Water & Sewer Inc

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0611 ppb181ND - 1.10 ppb
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
2014-03-11201403130307AMND
2014-03-11201403130285AMND
2014-03-17201403190661AMND
2014-03-18201403200342AMND
2014-03-25201403270191AM1.10 ppb
2014-03-25201403270315AMND
2014-03-25201403270199AMND
2014-06-20201406260428AMND
2014-06-25201406260492AMND
2014-09-15201409170715AMND
2014-09-15201409170803AMND
2014-09-15201409170849AMND
2014-09-15201409170808AMND
2014-09-15201409170853AMND
2014-09-22201409240396AMND
2014-09-22201409240307AMND
2014-12-22201412260031AMND
2014-12-22201412240414AMND