Manganese
Osawatomie, 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.
8
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 | 1.20 ppb | 1 | 1 | 1.20 ppb |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 0.833 ppb | 3 | 2 | ND - 1.30 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 |
|---|---|---|
| 2018-05-22 | 974341 | 1.20 ppb |
| 2019-05-21 | 1157707 | ND |
| 2020-05-04 | 1367243 | ND |
| 2021-05-10 | 1835584 | ND |
| 2022-05-12 | 2256513 | ND |
| 2023-05-04 | 2492621 | ND |
| 2023-11-09 | 2608412 | 1.30 ppb |
| 2023-11-09 | 2608413 | 1.20 ppb |