Manganese
East Newark 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.
4
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.750 ppb | 2 | 1 | ND - 1.50 ppb |
| 2019 | 5.57 ppb | 4 | 3 | ND - 11.2 ppb |
| 2020 | 109.5 ppb | 4 | 4 | 3.40 ppb - 330.8 ppb |
| 2021 | 4.10 ppb | 1 | 1 | 4.10 ppb |
| 2022 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2020-03-16 | 117486P | 71.2 ppb |
| 2020-06-17 | 119040P | 330.8 ppb |
| 2020-09-14 | 121191P | 32.6 ppb |
| 2020-12-10 | 122595P | 3.40 ppb |