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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Lockport

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.0786 ppb141ND - 1.10 ppb
2015N/A00N/A
2016N/A00N/A
2017N/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
2014-03-1125047901ND
2014-03-1125047801ND
2014-03-1125047601ND
2014-03-1125048001ND
2014-03-1125047701ND
2014-03-1125047501ND
2014-03-1125047201ND
2014-09-0927043701ND
2014-09-093113350ND
2014-09-0927043301ND
2014-09-0927043401ND
2014-09-0927043801ND
2014-09-0931133381.10 ppb
2014-09-0927043501ND