Manganese

Swta - Main System

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	Range of results
2013	N/A	N/A
2014	N/A	N/A
2015	N/A	N/A
2016	N/A	N/A
2017	N/A	N/A
2018	N/A	N/A
2019	N/A	N/A

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
2020-01-21	4546269	ND
2020-01-21	4546341	4.09 ppb
2020-01-21	4546404	ND
2020-01-21	4546265	ND
2020-01-21	4546384	0.787 ppb
2020-01-21	4546367	1.70 ppb
2020-01-21	4546330	ND
2020-01-21	4546371	3.47 ppb
2020-01-21	4546273	0.703 ppb
2020-04-07	4605457	0.437 ppb
2020-04-07	4605412	12.4 ppb
2020-07-21	4679961	1.19 ppb
2020-07-21	4679979	0.568 ppb
2020-07-21	4680006	ND
2020-07-21	4679989	1.50 ppb
2020-07-21	4679930	ND
2020-07-21	4679973	5.15 ppb
2020-07-21	4679926	ND
2020-07-21	4679953	ND
2020-07-21	4679941	9.28 ppb
2020-10-06	4743952	ND
2020-10-06	4743855	0.716 ppb