Know Your Environment. Protect Your Health.

Manganese

Mattapoisett River Valley WD

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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201851.0 ppb1151.0 ppb
201964.0 ppb1164.0 ppb
202079.0 ppb2213.0 ppb - 145.0 ppb
2021N/A00N/A
2022N/A00N/A
202370.0 ppb1170.0 ppb

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 Result
2018-04-2551.0 ppb
2019-04-0964.0 ppb
2020-05-28145.0 ppb
2020-06-0913.0 ppb
2023-04-1870.0 ppb