Manganese
Summit Township Water Authority
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)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | 1.01 ppb | 6 | 3 | ND - 3.17 ppb |
| 2020 | 28.3 ppb | 6 | 4 | ND - 85.5 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 |
|---|---|---|
| 2020-02-10 | U0B0071-01 | 3.55 ppb |
| 2020-02-10 | U0B0070-01 | 85.5 ppb |
| 2020-05-12 | U0E0042-01 | ND |
| 2020-08-04 | U0H0033-01 | 0.553 ppb |
| 2020-08-04 | U0H0032-01 | 80.3 ppb |
| 2020-12-14 | U0K0014-01 | ND |