Know Your Environment. Protect Your Health.

Manganese

Covington Water District

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
201921.9 ppb75ND - 107.0 ppb
2020N/A00N/A
2021N/A00N/A
2022ND20ND
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
2019-02-2035449564001SEA12.70 ppb
2019-02-2035449564002SEA110.9 ppb
2019-05-0935467390001SEA232.4 ppb
2019-05-2935471603001SEA10.570 ppb
2019-07-29ND
2019-07-29ND
2019-11-0735510679001SEA4107.0 ppb
2022-06-214309154ND
2022-10-254382938ND