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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Sparta Twp Water Utility - Lake Mohawk

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND220ND
2014N/A00N/A
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
2013-06-111032061025ND
2013-06-111032061011ND
2013-06-111032061009ND
2013-06-111032061015ND
2013-06-111032061013ND
2013-06-111032061005ND
2013-06-111032061003ND
2013-06-111032061007ND
2013-06-111032061023ND
2013-06-111032061001ND
2013-06-111032061027ND
2013-06-111032061019ND
2013-06-111032061017ND
2013-06-111032061021ND
2013-11-071057818015ND
2013-11-071057818012ND
2013-11-071057818006ND
2013-11-071057818003ND
2013-11-071057818009ND
2013-11-071057818001ND
2013-11-121058805001ND
2013-11-121058805004ND