Manganese
Essex Fells Water Department
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.
7
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 | 3 | 0 | ND |
| 2019 | 10.9 ppb | 30 | 15 | ND - 81.0 ppb |
| 2020 | 12.6 ppb | 36 | 22 | ND - 113.0 ppb |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 8.57 ppb | 21 | 6 | ND - 52.0 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 |
|---|---|---|
| 2018-08-21 | 18082115-01 | ND |
| 2018-08-21 | 18082115-02 | ND |
| 2018-08-21 | 18082115-03 | ND |
| 2021-05-18 | 21051741-001 | ND |
| 2021-05-18 | 21051741-003 | ND |
| 2021-05-18 | 21051741-002 | ND |
| 2022-05-17 | 220516012-001 | ND |