Manganese
City of Lacy Lakeview
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 | 1.70 ppb | 110 | 54 | ND - 47.2 ppb |
| 2019 | 0.469 ppb | 96 | 13 | ND - 22.1 ppb |
| 2020 | 0.533 ppb | 3 | 1 | ND - 1.60 ppb |
| 2021 | 4.50 ppb | 2 | 2 | 2.00 ppb - 7.00 ppb |
| 2022 | 2.20 ppb | 2 | 2 | 1.70 ppb - 2.70 ppb |
| 2023 | 3.10 ppb | 2 | 2 | 2.90 ppb - 3.30 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 |
|---|