Manganese
New Lisbon Waterworks
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)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 30.3 ppb | 5 | 5 | 0.869 ppb - 66.0 ppb |
| 2020 | 100.1 ppb | 1 | 1 | 100.1 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2019-05-08 | 112202P | 0.869 ppb |
| 2019-05-14 | 111530P | 66.0 ppb |
| 2019-05-14 | 111531P | 39.7 ppb |
| 2019-12-03 | 115597P | 42.9 ppb |
| 2019-12-03 | 115598P | 1.92 ppb |
| 2020-02-11 | 115596P | 100.1 ppb |