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EWG's Tap Water Database

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Manganese

Public Wholesale WSD 5

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND10ND
2013ND10ND
20141.80 ppb111.80 ppb
201522.0 ppb1122.0 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 100 ppb

The health guideline of 100 ppb for manganese was defined by Minnesota as a risk assessment advisory level, a non-enforceable guideline. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-03-02542899WSND
2011-05-03561159WSND
2012-05-08578530WSND
2013-05-07595616WSND
2014-04-221002091.80 ppb
2015-04-2131646522.0 ppb