Know Your Environment. Protect Your Health.

Manganese

Oswego, City of

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
20181.10 ppb111.10 ppb
20191.10 ppb111.10 ppb
20201.90 ppb111.90 ppb
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-05-079662121.10 ppb
2019-05-0611574531.10 ppb
2020-05-0413709421.90 ppb
2021-05-031828570ND
2022-05-092254510ND
2023-05-152500322ND