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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Avon Water Company

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

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND160ND
2014ND160ND
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
2013-07-27201307310232AMND
2013-07-29201307310318AMND
2013-07-30201307310247AMND
2013-07-30201308010339AMND
2013-07-30201307310234AMND
2013-07-30201307310228AMND
2013-07-30201307310322AMND
2013-07-31201308010418AMND
2013-07-31201308010321AMND
2013-07-31201308010405AMND
2013-07-31201308010341AMND
2013-07-31201308010397AMND
2013-07-31201308010335AMND
2013-07-31201308010421AMND
2013-08-23201308260056AMND
2013-08-23201308260054AMND
2014-01-20201401210075AMND
2014-01-20201401210079AMND
2014-01-20201401210083AMND
2014-01-20201401210111AMND
2014-01-20201401210109AMND
2014-01-20201401210081AMND
2014-01-20201401210077AMND
2014-01-27201401280232AMND
2014-01-27201401280211AMND
2014-01-27201401280240AMND
2014-01-27201401280242AMND
2014-01-27201401280266AMND
2014-01-27201401280221AMND
2014-01-27201401280268AMND
2014-01-27201401280264AMND
2014-01-27201401280228AMND