Know Your Environment. Protect Your Health.

Manganese

City of Redmond Water System

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.827 ppb95ND - 2.00 ppb
20191.80 ppb111.80 ppb
2020N/A00N/A
202141.0 ppb1141.0 ppb
2022N/A00N/A
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
2018-04-11201804120942ND
2018-04-11201804120943ND
2018-04-112018041209642.00 ppb
2018-04-112018041209470.640 ppb
2018-07-262018072701221.30 ppb
2018-10-082018100903661.60 ppb
2018-10-10201810110851ND
2018-10-10201810110887ND
2018-10-102018101108711.90 ppb
2019-01-232019012403071.80 ppb
2021-09-02418075641.0 ppb