Manganese
Torrington Water Company
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 | 7.22 ppb | 5 | 5 | 4.59 ppb - 9.43 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 3.06 ppb | 1 | 1 | 3.06 ppb |
| 2022 | 3.65 ppb | 1 | 1 | 3.65 ppb |
| 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 |
|---|---|---|
| 2019-02-13 | U9B0012-01 | 9.00 ppb |
| 2019-05-14 | D9E1447-01SEC | 6.86 ppb |
| 2019-05-15 | U9E0044-01 | 9.43 ppb |
| 2019-08-14 | U9H0055-01 | 4.59 ppb |
| 2019-11-13 | U9K0049-01 | 6.22 ppb |
| 2021-05-11 | D1E1053-01SEC | 3.06 ppb |
| 2022-05-10 | D2E0905-01SEC | 3.65 ppb |