Manganese
Champlain 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.
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 | 8.00 ppb | 1 | 1 | 8.00 ppb |
| 2019 | 8.00 ppb | 1 | 1 | 8.00 ppb |
| 2020 | 3.00 ppb | 2 | 1 | ND - 6.00 ppb |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 8.00 ppb | 1 | 1 | 8.00 ppb |
| 2023 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2018-01-23 | 18-IC-00587-001 | 8.00 ppb |
| 2019-01-11 | 19-IC-00129-001 | 8.00 ppb |
| 2020-01-09 | 20-IC-01346-001 | ND |
| 2020-01-09 | 20-IC-01483-001A | 6.00 ppb |
| 2021-02-01 | 2102-02713-001 | ND |
| 2022-01-31 | 22-IC-00547-001 | 8.00 ppb |
| 2023-01-12 | 23-IC-00280-001 | ND |
| 2023-12-04 | 2312-37478-001 | ND |