Manganese
Panoche Water District
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.
6
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 | 45.0 ppb | 1 | 1 | 45.0 ppb |
| 2019 | 30.0 ppb | 1 | 1 | 30.0 ppb |
| 2020 | 8.70 ppb | 1 | 1 | 8.70 ppb |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 46.0 ppb | 1 | 1 | 46.0 ppb |
| 2023 | 130.0 ppb | 1 | 1 | 130.0 ppb |
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 |
|---|---|---|
| 2018-03-26 | CA1000345_001_001-201803261300 | 45.0 ppb |
| 2019-03-25 | CA1000345_001_001-201903250930 | 30.0 ppb |
| 2020-03-23 | CA1000345_001_001-202003230800 | 8.70 ppb |
| 2021-03-16 | CA1000345_001_001-202103160750 | ND |
| 2022-06-27 | CA1000345_001_001-202206271030 | 46.0 ppb |
| 2023-06-14 | CA1000345_001_001-202306141125 | 130.0 ppb |