Manganese
East Walnut Grove [sws]
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.
4
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 | 74.0 ppb | 1 | 1 | 74.0 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 37.0 ppb | 1 | 1 | 37.0 ppb |
| 2021 | 98.0 ppb | 1 | 1 | 98.0 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 37.0 ppb | 1 | 1 | 37.0 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 |
|---|---|---|
| 2018-05-07 | CA3400106_007_007-201805070930 | 74.0 ppb |
| 2020-05-07 | CA3400106_001_001-202005070905 | 37.0 ppb |
| 2021-05-10 | CA3400106_007_007-202105100927 | 98.0 ppb |
| 2023-05-01 | CA3400106_001_001-202305010900 | 37.0 ppb |