Manganese
Elk City, City of
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)
2
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 140.0 ppb | 1 | 1 | 140.0 ppb |
| 2019 | 3.50 ppb | 1 | 1 | 3.50 ppb |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 170.0 ppb | 1 | 1 | 170.0 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 |
|---|---|---|
| 2018-04-09 | 937805 | 140.0 ppb |
| 2019-04-17 | 1138385 | 3.50 ppb |
| 2020-05-12 | 1375063 | ND |
| 2021-04-20 | 1821169 | ND |
| 2022-04-19 | 2239685 | ND |
| 2023-04-25 | 2488493 | 170.0 ppb |