Manganese
Home Gardens County Water District
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 | 2.86 ppb | 43 | 2 | ND - 62.0 ppb |
| 2019 | 2.00 ppb | 99 | 18 | ND - 100.0 ppb |
| 2020 | 6.75 ppb | 40 | 2 | ND - 140.0 ppb |
| 2021 | 51.2 ppb | 47 | 9 | ND - 590.0 ppb |
| 2022 | 105.2 ppb | 55 | 19 | ND - 500.0 ppb |
| 2023 | 100.6 ppb | 52 | 16 | ND - 500.0 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 |
|---|