Manganese
Carthage
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 | 12.9 ppb | 1 | 1 | 12.9 ppb |
| 2019 | 16.9 ppb | 1 | 1 | 16.9 ppb |
| 2020 | ND | 1 | 0 | ND |
| 2021 | 8.91 ppb | 1 | 1 | 8.91 ppb |
| 2022 | 8.55 ppb | 2 | 2 | 5.00 ppb - 12.1 ppb |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-03-04 | 18030694-002 | 12.9 ppb |
| 2019-02-03 | 190200106-05_01 | 16.9 ppb |
| 2020-02-16 | 2003638-001A | ND |
| 2021-02-28 | 210300068-002 | 8.91 ppb |
| 2022-02-07 | 220200240-002 | 12.1 ppb |
| 2022-04-26 | 220400875-002 | 5.00 ppb |