Know Your Environment. Protect Your Health.

Manganese

Galva, 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020169.9 ppb444.60 ppb - 630.0 ppb
2021656.0 ppb2212.0 ppb - 1,300.0 ppb
2022N/A00N/A
202331.0 ppb2210.00 ppb - 52.0 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 Lab ID Result
2020-02-04131863829.0 ppb
2020-02-0413186364.60 ppb
2020-02-101324049630.0 ppb
2020-09-28156850016.0 ppb
2021-12-2020759931,300.0 ppb
2021-12-21207755112.0 ppb
2023-01-23243715352.0 ppb
2023-01-23243715410.00 ppb