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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Mattoon

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.

 

10

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
20141.000 ppb111.000 ppb
2015ND10ND
2016ND10ND
2017ND10ND
20180.774 ppb54ND - 1.72 ppb
2019ND10ND

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
2014-01-084010586-011.000 ppb
2015-01-065010734-01ND
2016-01-066010748-01ND
2017-01-047010474-01ND
2018-01-038010378-011.10 ppb
2018-03-068031238-050.418 ppb
2018-06-058061142-051.72 ppb
2018-09-058090664-050.630 ppb
2018-12-058121135-05ND
2019-01-029010230-01ND