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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Aquarion Water Company of Connecticut - Simsbury System

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND200ND
2014N/A00N/A
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
2013-06-06201306070152AMND
2013-06-06201306070150AMND
2013-06-06201306070240AMND
2013-06-06201306070271AMND
2013-06-06201306070171AMND
2013-06-06201306070252AMND
2013-06-06201306070244AMND
2013-06-06201306070246AMND
2013-06-06201306070248AMND
2013-06-06201306070094AMND
2013-12-04201312050159AMND
2013-12-04201312050291AMND
2013-12-04201312050155AMND
2013-12-04201312050285AMND
2013-12-04201312050185AMND
2013-12-04201312050091AMND
2013-12-04201312050109AMND
2013-12-04201312050059AMND
2013-12-04201312050157AMND
2013-12-04201312050176AMND