Manganese
Huxley Waterworks Department
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)
1
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 5.50 ppb | 1 | 1 | 5.50 ppb |
| 2022 | 112.4 ppb | 2 | 2 | 3.70 ppb - 221.0 ppb |
| 2023 | 9.30 ppb | 1 | 1 | 9.30 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 |
|---|---|---|
| 2021-07-02 | 1EG0246-01 | 5.50 ppb |
| 2022-08-04 | 1FH0547-01 | 3.70 ppb |
| 2022-09-20 | 1FI1867-01 | 221.0 ppb |
| 2023-07-27 | 1GG2605-01 | 9.30 ppb |