Know Your Environment. Protect Your Health.

Manganese

Silverdale Water District 16

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
201912.6 ppb83ND - 100.0 ppb
202015.6 ppb115ND - 90.0 ppb
2021N/A00N/A
20222.47 ppb112ND - 23.0 ppb
2023ND10ND

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
2018-09-04ND
2019-06-17ND
2019-06-18100.0 ppb
2019-06-19ND
2019-09-19201909200158ND
2019-09-19201909200149ND
2019-09-252019092602220.500 ppb
2019-09-252019092601920.540 ppb
2019-11-25ND
2020-02-192020022001020.420 ppb
2020-02-19202002200085ND
2020-02-19202002200098ND
2020-02-19202002200074ND
2020-08-12202008130180ND
2020-08-12202008130188ND
2020-08-12202008130186ND
2020-08-1220200813029690.0 ppb
2020-08-1220200813012256.0 ppb
2020-08-1220200813029825.0 ppb
2020-08-122020081302990.630 ppb
2022-07-2544191324.20 ppb
2022-09-124364210ND
2022-09-124364211ND
2022-09-124364208ND
2022-09-124364206ND
2022-09-12436420523.0 ppb
2022-09-124364203ND
2022-09-124364209ND
2022-09-124364207ND
2022-09-124364204ND
2022-12-084404386ND
2023-10-194538648ND