Manganese
Desoto Parish Water Works District 1
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.
9
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 36.0 ppb | 2 | 2 | 36.0 ppb |
| 2019 | 16.0 ppb | 2 | 2 | 16.0 ppb |
| 2020 | 10.00 ppb | 1 | 1 | 10.00 ppb |
| 2021 | 50.0 ppb | 1 | 1 | 50.0 ppb |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 190.0 ppb | 2 | 2 | 30.0 ppb - 350.0 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 |
|---|---|---|
| 2018-02-20 | 35375984001 | 36.0 ppb |
| 2018-02-20 | 35375984001 | 36.0 ppb |
| 2019-03-13 | 35454726001 | 16.0 ppb |
| 2019-03-13 | 35454726001 | 16.0 ppb |
| 2020-02-03 | B2000557-001 | 10.00 ppb |
| 2021-01-13 | B2100144-001 | 50.0 ppb |
| 2022-02-22 | B2200828-001 | ND |
| 2023-02-07 | B2300547-001 | 30.0 ppb |
| 2023-08-21 | B2303428-001 | 350.0 ppb |