Manganese
Red Oak Terrace
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 | 23.8 ppb | 3 | 3 | 13.5 ppb - 35.2 ppb |
| 2020 | 15.5 ppb | 8 | 7 | ND - 26.2 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 20.8 ppb | 1 | 1 | 20.8 ppb |
| 2023 | 5.60 ppb | 1 | 1 | 5.60 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 |
|---|---|---|
| 2020-03-13 | C0C3007-01 | 16.5 ppb |
| 2020-03-13 | C0C3007-02 | 24.4 ppb |
| 2020-04-17 | C0D3712-01 | ND |
| 2020-04-17 | C0D3712-02 | 10.3 ppb |
| 2020-08-07 | C0H1373-01 | 19.0 ppb |
| 2020-08-07 | C0H1373-02 | 26.2 ppb |
| 2020-11-20 | C0K4472-01 | 13.8 ppb |
| 2020-11-20 | C0K4472-02 | 13.5 ppb |