Know Your Environment. Protect Your Health.

Manganese

Decatur Waterworks

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.47 ppb331.10 ppb - 1.90 ppb
2019ND40ND
2020ND30ND
20216.67 ppb31ND - 20.0 ppb
2022ND10ND
2023ND40ND

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
2018-07-31Y1821301061.40 ppb
2018-07-31Y1821301051.10 ppb
2018-11-14Y1831900191.90 ppb
2019-02-12Y190440010ND
2019-02-12Y190440001ND
2019-05-15Y191360038ND
2019-08-13Y192270026ND
2022-02-09Y220400036ND