Know Your Environment. Protect Your Health.

Manganese

Summit Mutual Water Company

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
201936.7 ppb31ND - 110.0 ppb
202025.5 ppb21ND - 51.0 ppb
2021ND40ND
2022ND40ND
202346.0 ppb2243.0 ppb - 49.0 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
2018-07-11CA4400559_001_001-201807111000ND
2018-11-14CA4400559_001_001-201811141200ND
2019-02-07CA4400559_001_001-201902071100ND
2019-05-21CA4400559_001_001-201905211540110.0 ppb
2019-08-07CA4400559_001_001-201908071000ND
2020-09-09CA4400559_001_001-202009091600ND
2020-12-02CA4400559_001_001-20201202070051.0 ppb
2021-03-03CA4400559_001_001-202103030900ND
2021-06-08CA4400559_001_001-202106081730ND
2021-09-08CA4400559_001_001-202109080900ND
2021-11-03CA4400559_001_001-202111031000ND
2022-02-01CA4400559_001_001-202202011200ND
2022-05-02CA4400559_001_001-202205021130ND
2022-08-04CA4400559_001_001-202208040900ND
2022-11-16CA4400559_001_001-202211161400ND
2023-02-08CA4400559_001_001-20230208080043.0 ppb
2023-10-03CA4400559_001_001-20231003120049.0 ppb