Manganese
Aquarion Water Company of Connecticut - Noroton System
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 | N/A | 0 | 0 | N/A |
| 2019 | 2.39 ppb | 4 | 4 | 0.460 ppb - 3.77 ppb |
| 2020 | 6.97 ppb | 4 | 4 | 0.575 ppb - 16.8 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 |
|---|---|---|
| 2019-09-12 | U9I0012-01 | 3.33 ppb |
| 2019-09-12 | U9I0012-02 | 2.00 ppb |
| 2019-12-03 | U9L0010-01 | 0.460 ppb |
| 2019-12-03 | U9L0010-02 | 3.77 ppb |
| 2020-03-11 | U0C0007-01 | 0.575 ppb |
| 2020-06-09 | U0F0008-01 | 5.70 ppb |
| 2020-06-09 | U0F0008-02 | 4.81 ppb |
| 2020-11-20 | U0K0021-01 | 16.8 ppb |