Manganese
Mitchell County Rural Water District 2
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 | 50.0 ppb | 1 | 1 | 50.0 ppb |
| 2019 | 6.70 ppb | 1 | 1 | 6.70 ppb |
| 2020 | ND | 1 | 0 | ND |
| 2021 | 1.10 ppb | 1 | 1 | 1.10 ppb |
| 2022 | 1.70 ppb | 1 | 1 | 1.70 ppb |
| 2023 | 6.20 ppb | 1 | 1 | 6.20 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 |
|---|---|---|
| 2018-04-17 | 937706 | 50.0 ppb |
| 2019-04-22 | 1138154 | 6.70 ppb |
| 2020-04-13 | 1356556 | ND |
| 2021-04-12 | 1816200 | 1.10 ppb |
| 2022-04-19 | 2239682 | 1.70 ppb |
| 2023-04-04 | 2477929 | 6.20 ppb |