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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Aqua Ohio Inc. - Mentor

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND150ND
2019ND110ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-02AF72801ND
2018-02-05AF75631ND
2018-02-16AF76764ND
2018-02-20AF77030ND
2018-02-26AF77500ND
2018-03-05AF77998ND
2018-04-02AF80456ND
2018-05-01AF83060ND
2018-06-04AF85883ND
2018-07-02AF88744ND
2018-08-01AF91546ND
2018-09-04AF94760ND
2018-10-01AF97309ND
2018-11-05AG00568ND
2018-12-03AG02962ND
2019-01-07AG05731ND
2019-02-04AG07985ND
2019-03-05AG10726ND
2019-04-01AG13125ND
2019-05-06AG16705ND
2019-06-03AG19727ND
2019-07-01AG23008ND
2019-07-089073517-01AND
2019-08-05AG26966ND
2019-09-03AG30690ND
2019-10-089103060-01AND
2020-01-083081136001ND
2020-04-0830977830010.850 ppb