Know Your Environment. Protect Your Health.

Manganese

Bonney Lake Water Department

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.02 ppb144ND - 22.5 ppb
2019ND40ND
20205.26 ppb43ND - 14.0 ppb
2021ND40ND
20222.63 ppb81ND - 21.0 ppb
202323.0 ppb53ND - 82.0 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
2018-03-0669151U0.515 ppb
2018-03-0608969152UND
2018-03-0608969149UND
2018-03-0669150UND
2018-03-20ND
2018-03-20ND
2018-07-17ND
2018-07-17ND
2018-09-2008902364U22.5 ppb
2018-09-2008902365UND
2018-09-2008902362UND
2018-09-2008902363UND
2018-09-25028902416U0.400 ppb
2018-12-1808903437U4.90 ppb
2019-03-25ND
2019-03-25ND
2019-03-25ND
2019-06-04ND
2021-04-074099213ND
2021-04-074099210ND
2021-04-074099206ND
2021-06-234136306ND