Manganese
Carlisle 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 | 3.00 ppb | 1 | 1 | 3.00 ppb |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 3.00 ppb | 1 | 1 | 3.00 ppb |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-02-28 | 8022541-01 | 3.00 ppb |
| 2019-02-26 | 9023379-01 | ND |
| 2020-02-25 | 0023474-01 | ND |
| 2021-03-01 | 1024256-01 | ND |
| 2022-02-28 | 2024335-01 | 3.00 ppb |
| 2023-03-06 | 3024586-01 | ND |