Manganese
Riverwalk 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.
6
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 19.3 ppb | 2 | 2 | 7.20 ppb - 31.4 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 69.3 ppb | 1 | 1 | 69.3 ppb |
| 2021 | 42.6 ppb | 2 | 2 | 9.20 ppb - 75.9 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 123.0 ppb | 1 | 1 | 123.0 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 |
|---|---|---|
| 2018-01-22 | AE09442 | 7.20 ppb |
| 2018-01-22 | AE09443 | 31.4 ppb |
| 2020-09-03 | AF26408 | 69.3 ppb |
| 2021-07-26 | AF63167 | 9.20 ppb |
| 2021-07-26 | AF63172 | 75.9 ppb |
| 2023-08-03 | AG51238 | 123.0 ppb |