Manganese
Loring Development Authority
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.
6
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 19.0 ppb | 1 | 1 | 19.0 ppb |
| 2019 | 11.0 ppb | 1 | 1 | 11.0 ppb |
| 2020 | 12.0 ppb | 1 | 1 | 12.0 ppb |
| 2021 | 13.0 ppb | 1 | 1 | 13.0 ppb |
| 2022 | 13.0 ppb | 1 | 1 | 13.0 ppb |
| 2023 | 22.2 ppb | 1 | 1 | 22.2 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 |
|---|---|---|
| 2018-04-16 | 1804096-01 | 19.0 ppb |
| 2019-04-29 | 1903743-01 | 11.0 ppb |
| 2020-04-20 | 2003911-01 | 12.0 ppb |
| 2021-05-17 | 2101938-01 | 13.0 ppb |
| 2022-04-26 | 2203457-01 | 13.0 ppb |
| 2023-04-24 | 2303337-01 | 22.2 ppb |