Manganese

IL American - Pekin

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	N/A	0	0	N/A
2014	N/A	0	0	N/A
2015	2.29 ppb	7	1	ND - 16.0 ppb
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	6.33 ppb	9	1	ND - 57.0 ppb
2019	0.967 ppb	7	4	ND - 3.40 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
2015-04-20	28596101	ND
2015-07-20	29618801	ND
2015-07-20	29619001	ND
2015-07-20	29619401	ND
2015-07-20	29619601	ND
2015-07-20	29619801	ND
2015-07-20	29618501	16.0 ppb
2018-04-02	39112601	ND
2018-07-02	40359901	ND
2018-07-02	40360201	ND
2018-07-02	40360401	ND
2018-07-02	40360801	ND
2018-07-02	40361001	ND
2018-07-02	40361201	57.0 ppb
2018-10-30	18J0987-01_01	ND
2018-10-30	18J0987-02_01	ND
2019-09-04	46383601	ND
2019-09-04	46383501	ND
2019-09-04	46383701	ND
2019-09-04	46383401	0.770 ppb
2019-09-04	46383801	3.40 ppb
2019-09-04	46383301	1.40 ppb
2019-09-04	46383201	1.20 ppb
2020-03-02	49066301	ND
2020-03-02	49066501	0.460 ppb
2020-03-02	49066201	ND
2020-03-02	49066101	4.40 ppb
2020-03-02	49066001	0.960 ppb
2020-03-02	49065901	ND
2020-04-14	49066401	2.90 ppb