Manganese
NJ American Water - Frenchtown
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 | 37.6 ppb | 5 | 3 | ND - 80.0 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2018-05-30 | 39550401 | 65.0 ppb |
| 2018-05-30 | 39550501 | ND |
| 2018-05-30 | 39550301 | ND |
| 2018-06-13 | 40273001 | 80.0 ppb |
| 2018-06-28 | 7057317001-SEC | 42.9 ppb |
| 2021-05-13 | 54356801 | ND |
| 2021-05-13 | 54355901 | ND |
| 2021-05-13 | 54356701 | ND |