Manganese
Bridgton 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.
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 | 137.8 ppb | 2 | 2 | 52.6 ppb - 223.0 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 73.0 ppb | 1 | 1 | 73.0 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 2.70 ppb | 1 | 1 | 2.70 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 |
|---|---|---|
| 2018-06-26 | 1806-03216-003 | 52.6 ppb |
| 2018-06-26 | 1806-03214-003 | 223.0 ppb |
| 2020-08-26 | 2003360-01 | 73.0 ppb |
| 2023-08-08 | 2303356-01 | 2.70 ppb |