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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Pennsylvania American Royersford

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
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND180ND
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
2015-03-0428404001ND
2015-03-0428403901ND
2015-03-0428403601ND
2015-03-0428403401ND
2015-03-0928403801ND
2015-03-0928403501ND
2015-03-1028403701ND
2015-06-1029084101ND
2015-06-1029084001ND
2015-09-0130138101ND
2015-09-0130138401ND
2015-09-0130137901ND
2015-09-0130138501ND
2015-09-0130138201ND
2015-09-1030138001ND
2015-09-1630138301ND
2015-12-0230793901ND
2015-12-0230794001ND