Manganese
Aquarion Water Company of Connecticut - Stamford
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 | N/A | 0 | 0 | N/A |
| 2019 | 0.650 ppb | 2 | 1 | ND - 1.30 ppb |
| 2020 | 1.24 ppb | 5 | 4 | ND - 4.37 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-10-08 | U9J0013-01 | ND |
| 2019-10-08 | U9J0013-02 | 1.30 ppb |
| 2020-01-07 | U0A0012-01 | 0.415 ppb |
| 2020-01-07 | U0A0012-02 | 0.509 ppb |
| 2020-04-14 | U0D0006-01 | ND |
| 2020-04-14 | U0D0006-02 | 4.37 ppb |
| 2020-07-20 | U0G0010-01 | 0.928 ppb |