Manganese
Las Deltas Mutual Water System
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 | 93.0 ppb | 124 | 50 | ND - 900.0 ppb |
| 2019 | 86.9 ppb | 128 | 23 | ND - 880.0 ppb |
| 2020 | 88.7 ppb | 127 | 23 | ND - 730.0 ppb |
| 2021 | 69.8 ppb | 125 | 21 | ND - 660.0 ppb |
| 2022 | 73.4 ppb | 119 | 20 | ND - 1,300.0 ppb |
| 2023 | 70.0 ppb | 126 | 22 | ND - 630.0 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 |
|---|