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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Aqua Pa Uwchlan

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
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND320ND
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
2015-03-20AE69555ND
2015-03-20AE69556ND
2015-03-20AE69554ND
2015-03-20AE69552ND
2015-03-20AE69553ND
2015-03-20AE69550ND
2015-03-20AE69551ND
2015-03-25AE70006ND
2015-03-25AE70003ND
2015-03-25AE70000ND
2015-03-25AE69997ND
2015-03-25AE70009ND
2015-03-25AE70012ND
2015-03-25AE70015ND
2015-06-04AE78272ND
2015-06-04AE78275ND
2015-09-16AE92702ND
2015-09-16AE92716ND
2015-09-16AE92725ND
2015-09-16AE92719ND
2015-09-16AE92713ND
2015-09-16AE92722ND
2015-09-16AE92728ND
2015-09-16AE92704ND
2015-09-16AE92698ND
2015-09-16AE92700ND
2015-09-16AE92706ND
2015-09-16AE92708ND
2015-09-16AE92710ND
2015-09-16AE92696ND
2015-12-11AF02220ND
2015-12-11AF02244ND