Manganese
Town of Combes
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.
0
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 | 0.186 ppb | 50 | 2 | ND - 5.80 ppb |
| 2019 | 9.08 ppb | 6 | 6 | 2.40 ppb - 18.3 ppb |
| 2020 | 5.67 ppb | 6 | 6 | 3.40 ppb - 8.70 ppb |
| 2021 | 8.95 ppb | 2 | 2 | 4.90 ppb - 13.0 ppb |
| 2022 | 4.10 ppb | 2 | 2 | 3.00 ppb - 5.20 ppb |
| 2023 | 2.45 ppb | 2 | 2 | 2.10 ppb - 2.80 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 |
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