Know Your Environment. Protect Your Health.

Manganese

Redmond 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND70ND
20190.0857 ppb71ND - 0.600 ppb
2020N/A00N/A
2021ND10ND
2022ND50ND
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
2018-08-1618-30803-62457ND
2018-08-1618-30803-62455ND
2018-08-1618-30803-62453ND
2018-08-1618-30803-62445ND
2018-08-1618-30803-62447ND
2018-08-1618-30803-62451ND
2018-08-1618-30803-62449ND
2019-02-2119-06142-12637ND
2019-02-2119-06142-12636ND
2019-02-2119-06142-12635ND
2019-02-2119-06142-12634ND
2019-05-1419-17728-35240ND
2019-05-1419-17728-35239ND
2019-10-2219-40682-789300.600 ppb
2021-05-112132264-IND
2022-06-1622-39096-IND
2022-06-1622-39094-IND
2022-06-1622-39095-IND
2022-06-1622-39098-IND
2022-06-1622-39097-IND