Manganese
Big Oaks Ranchette Subdivision
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.
8
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 | N/A | 0 | 0 | N/A |
| 2019 | 23.9 ppb | 1 | 1 | 23.9 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 53.8 ppb | 7 | 7 | 22.7 ppb - 97.0 ppb |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-08-27 | AE80884 | 23.9 ppb |
| 2022-03-15 | 22B3913-01 | 72.2 ppb |
| 2022-03-15 | 22B3913-02 | 34.9 ppb |
| 2022-04-13 | AF93067 | 22.7 ppb |
| 2022-04-18 | 22D1703-01 | 97.0 ppb |
| 2022-04-18 | 22D1703-02 | 31.0 ppb |
| 2022-09-07 | 22G2051-01 | 86.6 ppb |
| 2022-09-07 | 22G2051-02 | 32.3 ppb |