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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Monroe South County

NOTE: Monroe South County purchases water from City of Toledo which is required to test for cobalt. Sample information shown below was taken by City of Toledo.

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
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

NOTE: Monroe South County purchases water from City of Toledo which is required to test for cobalt. Sample information shown below was taken by City of Toledo.

Date Lab ID Result
2013-02-13M13-11977-01ND
2013-05-17M13-16123-03ND
2013-05-17M13-16123-01ND
2013-08-08201308130261AMND
2013-08-08201308130259AMND
2013-11-07201311140433AMND
2013-11-07201311140431AMND
2014-04-16201404190085AMND