Manganese
Warwick Twp Water & Sewer Authority
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 | 2.38 ppb | 4 | 4 | 1.20 ppb - 4.26 ppb |
| 2019 | 3.46 ppb | 4 | 4 | 1.79 ppb - 7.35 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-09-06 | 4048419 | 1.20 ppb |
| 2018-09-06 | 4048413 | 4.26 ppb |
| 2018-12-06 | 4143542 | 1.57 ppb |
| 2018-12-06 | 4143537 | 2.48 ppb |
| 2019-03-05 | 4216937 | 2.90 ppb |
| 2019-03-05 | 4216941 | 1.81 ppb |
| 2019-06-04 | 4313795 | 1.79 ppb |
| 2019-06-04 | 4313799 | 7.35 ppb |