Manganese
Wakefield S/d
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)
7
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 235.0 ppb | 2 | 2 | 138.0 ppb - 332.0 ppb |
| 2019 | 185.0 ppb | 2 | 2 | 175.0 ppb - 195.0 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 227.0 ppb | 2 | 2 | 108.0 ppb - 346.0 ppb |
| 2022 | 96.0 ppb | 2 | 1 | ND - 192.0 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 |
|---|---|---|
| 2018-02-07 | CA18484-01 | 138.0 ppb |
| 2018-07-25 | CB08290-01 | 332.0 ppb |
| 2019-04-15 | CC04376-01 | 175.0 ppb |
| 2019-04-18 | CC06191-01 | 195.0 ppb |
| 2021-01-18 | CD18812-01 | 108.0 ppb |
| 2021-08-11 | CE07662-01 | 346.0 ppb |
| 2022-05-03 | CF02514-01 | 192.0 ppb |
| 2022-05-11 | CF06802-01_A | ND |