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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Paw Penn District

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
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
2014-10-0627102001ND
2014-10-0627101801ND
2014-10-0627101101ND
2014-10-0627102101ND
2014-10-0627101501ND
2014-10-0627101001ND
2014-10-1327101901ND
2014-10-1327101701ND
2014-10-1327100901ND
2014-10-1327102201ND
2014-10-1327101401ND
2014-10-1327101201ND
2014-10-143133123ND
2014-10-143133169ND
2014-10-143133171ND
2014-10-143133173ND
2015-04-0328566401ND
2015-04-0328566101ND
2015-04-0328565601ND
2015-04-0328565501ND
2015-04-0328565901ND
2015-04-0328566501ND
2015-04-0328565101ND
2015-04-0728566601ND
2015-04-0728566001ND
2015-04-0728565801ND
2015-04-0728565701ND
2015-04-0728565401ND
2015-04-0728566201ND
2015-04-0828565301ND
2015-04-0828566301ND
2015-04-1728565201ND