Manganese
City Of Nevada City
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)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 23.0 ppb | 1 | 1 | 23.0 ppb |
| 2023 | 25.0 ppb | 1 | 1 | 25.0 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 |
|---|---|---|
| 2018-10-09 | CA2910002_002_002-201810090815 | ND |
| 2019-11-04 | CA2910002_002_002-201911040930 | ND |
| 2020-12-14 | CA2910002_002_002-202012141100 | ND |
| 2021-07-12 | CA2910002_003_003-202107120900 | ND |
| 2022-09-07 | CA2910002_003_003-202209070800 | 23.0 ppb |
| 2023-11-13 | CA2910002_003_003-202311130800 | 25.0 ppb |