Manganese
Mount Morris
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.
7
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 | ND | 1 | 0 | ND |
| 2019 | 8.80 ppb | 1 | 1 | 8.80 ppb |
| 2020 | 1.95 ppb | 2 | 1 | ND - 3.90 ppb |
| 2021 | 2.40 ppb | 1 | 1 | 2.40 ppb |
| 2022 | 2.30 ppb | 1 | 1 | 2.30 ppb |
| 2023 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2018-07-12 | 8072461-01 | ND |
| 2019-07-16 | 9073399-01 | 8.80 ppb |
| 2020-07-07 | 0071141-01 | 3.90 ppb |
| 2020-07-07 | 0071141-02 | ND |
| 2021-07-06 | EG00592-01 | 2.40 ppb |
| 2022-07-26 | FG04897-01 | 2.30 ppb |
| 2023-08-01 | GH00243-01 | ND |