Manganese
Washington Ridge C.c.
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 | 14.7 ppb | 3 | 2 | ND - 39.2 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2019-03-27 | CA2910013_002_002-201903270830 | 5.00 ppb |
| 2019-03-27 | CA2910013_003_003-201903270845 | 39.2 ppb |
| 2019-03-27 | CA2910013_005_005-201903270900 | ND |
| 2022-03-08 | CA2910013_002_002-202203081033 | ND |
| 2022-03-08 | CA2910013_003_003-202203081111 | ND |
| 2022-03-08 | CA2910013_005_005-202203081138 | ND |