Know Your Environment. Protect Your Health.

Manganese

Duvall 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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.50 ppb440.810 ppb - 2.40 ppb
20191.28 ppb54ND - 2.70 ppb
2020N/A00N/A
2021N/A00N/A
20220.500 ppb110.500 ppb
20230.600 ppb110.600 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
2018-02-21100789Q0.810 ppb
2018-05-16103764Q1.10 ppb
2018-08-22107626P1.70 ppb
2018-11-07109053P2.40 ppb