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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Missouri American - Joplin

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.

MORE ABOUT THIS CONTAMINANT

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015ND20ND
20162.63 ppb81ND - 21.0 ppb
2017ND30ND
2018ND10ND
20190.525 ppb156ND - 4.70 ppb

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
2014-03-1824968401ND
2014-03-1824967901ND
2014-03-1824968901ND
2014-04-0125137601ND
2014-04-0125138001ND
2014-04-0125138401ND
2014-06-0325855101ND
2014-06-0325855401ND
2014-09-1526904001ND
2014-09-1526904501ND
2015-03-0928409701ND
2015-04-1328621201ND
2016-03-0431417401ND
2016-03-0431417801ND
2016-03-0431417001ND
2016-04-183177280121.0 ppb
2016-04-1831773201ND
2016-06-0732171501ND
2016-06-0732171901ND
2016-07-1931772401ND
2017-03-1334853101ND
2017-09-0536993501ND
2017-11-1436993801ND
2018-03-0638819601ND
2019-02-11431971010.810 ppb
2019-02-11431970010.700 ppb
2019-03-1143437501ND
2019-03-1143437701ND
2019-03-1143438201ND
2019-04-0843595401ND
2019-04-0843595601ND
2019-05-06439563014.70 ppb
2019-06-0344569901ND
2019-06-0344570001ND
2019-08-05457372010.670 ppb
2019-08-05457373010.430 ppb
2019-08-1943595901ND
2019-11-06470902010.560 ppb
2019-11-1847678301ND