Manganese
Marion Water System
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.
9
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 | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | 15.0 ppb | 2 | 1 | ND - 30.0 ppb |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2018-05-14 | 35392913003 | ND |
| 2018-05-14 | 35392913003 | ND |
| 2020-11-18 | B2006134-003 | ND |
| 2021-08-03 | B2103708-001 | ND |
| 2021-08-03 | B2103708-002 | 30.0 ppb |
| 2022-01-13 | B2200305-001 | ND |
| 2022-01-13 | B2200305-002 | ND |
| 2023-08-31 | B2303833-001 | ND |
| 2023-11-20 | B2305038-001 | ND |