Manganese
Centerville 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 | 9.70 ppb | 1 | 1 | 9.70 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 7.30 ppb | 1 | 1 | 7.30 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 13.2 ppb | 6 | 2 | ND - 68.1 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 |
|---|---|---|
| 2018-02-06 | Q1804822003 | 9.70 ppb |
| 2021-10-06 | Q2127584003 | 7.30 ppb |
| 2023-09-06 | Q2338480001 | ND |
| 2023-09-06 | Q2338480002 | 11.3 ppb |
| 2023-09-06 | Q2338480003 | ND |
| 2023-10-19 | Q2344959001 | ND |
| 2023-10-19 | Q2344959002 | 68.1 ppb |
| 2023-10-19 | Q2344959003 | ND |