Manganese
Rancho Ynecita Mutual Water Company
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 5.67 ppb | 3 | 1 | ND - 17.0 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 24.3 ppb | 3 | 1 | ND - 73.0 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 |
|---|---|---|
| 2020-04-21 | CA4200837_004_004-202004210845 | ND |
| 2020-04-21 | CA4200837_001_001-202004210930 | 17.0 ppb |
| 2020-04-21 | CA4200837_003_003-202004210800 | ND |
| 2023-06-21 | CA4200837_003_003-202306210710 | ND |
| 2023-06-21 | CA4200837_001_001-202306210805 | ND |
| 2023-12-26 | CA4200837_001_001-202312261310 | 73.0 ppb |