Manganese
Franklin County Rural Water District 6
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 | 29.0 ppb | 1 | 1 | 29.0 ppb |
| 2019 | 8.80 ppb | 1 | 1 | 8.80 ppb |
| 2020 | 12.0 ppb | 1 | 1 | 12.0 ppb |
| 2021 | 46.0 ppb | 1 | 1 | 46.0 ppb |
| 2022 | 2.50 ppb | 1 | 1 | 2.50 ppb |
| 2023 | 13.0 ppb | 1 | 1 | 13.0 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 | Lab ID | Result |
|---|---|---|
| 2018-05-07 | 966619 | 29.0 ppb |
| 2019-05-07 | 1157864 | 8.80 ppb |
| 2020-05-04 | 1368625 | 12.0 ppb |
| 2021-04-26 | 1824826 | 46.0 ppb |
| 2022-05-10 | 2255637 | 2.50 ppb |
| 2023-05-15 | 2500539 | 13.0 ppb |