Manganese
Green Acres Park
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)
6
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 | 921.0 ppb | 1 | 1 | 921.0 ppb |
| 2020 | 460.0 ppb | 1 | 1 | 460.0 ppb |
| 2021 | 1,066.7 ppb | 3 | 3 | 400.0 ppb - 1,700.0 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 430.0 ppb | 1 | 1 | 430.0 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 |
|---|---|---|
| 2019-03-19 | 03211909FE-MN | 921.0 ppb |
| 2020-08-12 | 420-178341-1PRI | 460.0 ppb |
| 2021-01-10 | 420-188957-1FE-MN | 1,100.0 ppb |
| 2021-08-11 | 420-204149-2FE-MN | 400.0 ppb |
| 2021-08-11 | 420-204149-1FE-MN | 1,700.0 ppb |
| 2023-11-14 | 23K1825-01PRI | 430.0 ppb |