Manganese
B C Y Water Supply Corporation
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.
8
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 | 2.90 ppb | 1 | 1 | 2.90 ppb |
| 2019 | 54.0 ppb | 1 | 1 | 54.0 ppb |
| 2020 | 4.85 ppb | 2 | 2 | 4.20 ppb - 5.50 ppb |
| 2021 | 2.60 ppb | 1 | 1 | 2.60 ppb |
| 2022 | 58.0 ppb | 1 | 1 | 58.0 ppb |
| 2023 | 4.80 ppb | 2 | 2 | 3.90 ppb - 5.70 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 |
|---|---|---|
| 2018-06-21 | Q1824846007 | 2.90 ppb |
| 2019-03-13 | Q1910550017 | 54.0 ppb |
| 2020-02-10 | Q2005314010 | 4.20 ppb |
| 2020-03-02 | Q2007756010 | 5.50 ppb |
| 2021-09-21 | Q2125818009 | 2.60 ppb |
| 2022-10-27 | Q2232551006 | 58.0 ppb |
| 2023-01-10 | Q2301214008 | 5.70 ppb |
| 2023-01-10 | Q2301214009 | 3.90 ppb |