Know Your Environment. Protect Your Health.

Manganese

Carver Municipal Buildings

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
201918.3 ppb42ND - 62.0 ppb
202065.0 ppb21ND - 130.0 ppb
2021265.0 ppb41ND - 1,060.0 ppb
20223.67 ppb31ND - 11.0 ppb
202346.8 ppb41ND - 187.0 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 Result
2018-03-19ND
2018-04-10ND
2018-08-21ND
2018-10-09ND
2019-01-0811.0 ppb
2019-04-1662.0 ppb
2019-07-16ND
2019-10-23ND
2020-05-22ND
2020-10-06130.0 ppb
2021-01-04ND
2021-06-02ND
2021-09-13ND
2021-12-101,060.0 ppb
2022-02-2411.0 ppb
2022-05-04ND
2022-12-27ND
2023-03-08ND
2023-06-20ND
2023-09-06187.0 ppb
2023-12-12ND