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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Hot Springs Utilities

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND80ND
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
2013-08-12Y132270041ND
2013-08-12Y132270039ND
2013-08-12Y132270042ND
2013-08-12Y132270040ND
2014-02-10Y140450023ND
2014-02-10Y140450025ND
2014-02-10Y140450024ND
2014-02-10Y140450022ND
2014-05-12Y141360018ND
2014-05-12Y141360020ND
2014-05-12Y141360019ND
2014-05-12Y141360017ND