Manganese
Lanesborough Fire and Water District
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.
2
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 | 13.7 ppb | 12 | 11 | ND - 58.4 ppb |
| 2019 | 5.50 ppb | 8 | 6 | ND - 14.1 ppb |
| 2020 | 8.32 ppb | 5 | 4 | ND - 24.8 ppb |
| 2021 | 8.98 ppb | 4 | 2 | ND - 24.0 ppb |
| 2022 | 10.8 ppb | 4 | 4 | 4.34 ppb - 25.4 ppb |
| 2023 | 336.7 ppb | 2 | 2 | 3.30 ppb - 670.0 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 | Result |
|---|---|
| 2023-04-17 | 670.0 ppb |
| 2023-04-17 | 3.30 ppb |