Manganese
Ellsworth 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.
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 | 1.10 ppb | 1 | 1 | 1.10 ppb |
| 2019 | 8.40 ppb | 1 | 1 | 8.40 ppb |
| 2020 | 5.80 ppb | 1 | 1 | 5.80 ppb |
| 2021 | 2.20 ppb | 1 | 1 | 2.20 ppb |
| 2022 | 3.20 ppb | 1 | 1 | 3.20 ppb |
| 2023 | 2.40 ppb | 1 | 1 | 2.40 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 |
|---|---|---|
| 2018-03-22 | 1803956-01 | 1.10 ppb |
| 2019-04-09 | 1904-01176-001 | 8.40 ppb |
| 2020-03-18 | 2003-02062-002 | 5.80 ppb |
| 2021-03-09 | 2103-01216-001 | 2.20 ppb |
| 2022-03-29 | 2203-04028-001 | 3.20 ppb |
| 2023-03-30 | 2303-05390-002 | 2.40 ppb |