Manganese
Woodland Park Water Department
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.
0
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 | 4.25 ppb | 16 | 11 | ND - 9.81 ppb |
| 2019 | 6.59 ppb | 20 | 18 | ND - 17.4 ppb |
| 2020 | 16.2 ppb | 16 | 16 | 5.56 ppb - 59.9 ppb |
| 2021 | 8.86 ppb | 16 | 16 | 2.69 ppb - 18.0 ppb |
| 2022 | 10.8 ppb | 16 | 16 | 4.18 ppb - 25.9 ppb |
| 2023 | 9.47 ppb | 16 | 16 | 3.41 ppb - 17.7 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 |
|---|