Manganese
Boothbay Region 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.
6
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 | 39.0 ppb | 1 | 1 | 39.0 ppb |
| 2019 | 48.0 ppb | 1 | 1 | 48.0 ppb |
| 2020 | 94.0 ppb | 1 | 1 | 94.0 ppb |
| 2021 | 5.80 ppb | 1 | 1 | 5.80 ppb |
| 2022 | 35.0 ppb | 1 | 1 | 35.0 ppb |
| 2023 | 1.80 ppb | 1 | 1 | 1.80 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 |
|---|---|---|
| 2018-04-03 | 1803694-01 | 39.0 ppb |
| 2019-03-19 | 1903372-01 | 48.0 ppb |
| 2020-03-24 | 2003381-01 | 94.0 ppb |
| 2021-05-12 | 2101604-01 | 5.80 ppb |
| 2022-04-06 | 2203379-01 | 35.0 ppb |
| 2023-06-14 | 2303329-01 | 1.80 ppb |