Know Your Environment. Protect Your Health.

Manganese

City of Beaverton

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.300 ppb41ND - 1.20 ppb
20192.31 ppb220.410 ppb - 4.20 ppb
2020ND20ND
20210.500 ppb21ND - 1.000 ppb
2022ND10ND
2023ND20ND

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
2018-04-032018040406491.20 ppb
2018-07-10201807110926ND
2018-07-10201807111259ND
2018-10-04201810050525ND
2019-01-032019010402244.20 ppb
2019-01-032019010401370.410 ppb
2022-06-222173004-02-IND