Know Your Environment. Protect Your Health.

Manganese

Hca Roan Filter Plant

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20198.60 ppb332.80 ppb - 19.1 ppb
202012.4 ppb1112.4 ppb
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

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
2019-05-207090290006SEA119.1 ppb
2019-08-2170102619006SEA22.80 ppb
2019-11-2070112739006SEA33.90 ppb
2020-02-2070122623006SEA412.4 ppb