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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Griffin

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
201313.0 ppb21ND - 26.0 ppb
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

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
2012-05-08AH61154ND
2012-05-15AH64675ND
2013-06-12AI0363426.0 ppb
2013-07-10AI06099ND
2014-02-25AI28735ND
2014-02-25AI28627ND
2015-01-27AI63626ND
2015-02-10AI64715ND
2016-01-27AJ05145ND
2016-02-08AJ06091ND
2017-02-09AJ46223ND
2017-02-13AJ46346ND