Manganese

IL American - Peoria

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	ND	3	0	ND
2015	ND	2	0	ND
2016	ND	3	0	ND
2017	ND	3	0	ND
2018	2.01 ppb	6	3	ND - 10.00 ppb
2019	2.08 ppb	10	5	ND - 10.00 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
2014-07-02	26357601	ND
2014-07-08	26357801	ND
2014-10-01	27172301	ND
2015-07-06	29623101	ND
2015-07-07	29623501	ND
2016-07-06	32623101	ND
2016-07-07	32624001	ND
2016-07-07	32623301	ND
2017-07-10	36363201	ND
2017-07-10	36362901	ND
2017-10-02	37457401	ND
2018-07-11	40364801	ND
2018-07-11	40365301	10.00 ppb
2018-10-01	41338601	0.940 ppb
2018-10-08	41338901	ND
2018-10-08	41338801	ND
2018-10-08	41338701	1.10 ppb
2019-01-07	42579701	8.00 ppb
2019-04-01	43822301	ND
2019-04-01	43822201	0.690 ppb
2019-04-01	43822101	0.820 ppb
2019-04-01	43822001	10.00 ppb
2019-05-14	19E0466-01	ND
2019-07-01	45117801	1.30 ppb
2019-07-02	45118501	ND
2019-07-02	45116101	ND
2019-07-02	45116001	ND