Manganese
Clearfield Municipal Authority
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.
8
Samples
0
Samples exceeding legal limit (MCL)
2
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 33.3 ppb | 4 | 4 | 5.40 ppb - 74.2 ppb |
| 2019 | 82.0 ppb | 4 | 4 | 33.3 ppb - 150.0 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-09-20 | 7065627007SEA1 | 74.2 ppb |
| 2018-09-20 | 7065627008SEA1 | 5.40 ppb |
| 2018-12-20 | 7074815007SEA2 | 28.2 ppb |
| 2018-12-20 | 7074815008SEA2 | 25.3 ppb |
| 2019-03-13 | 7082339007SEA3 | 33.3 ppb |
| 2019-03-13 | 7082339008SEA3 | 103.0 ppb |
| 2019-06-20 | 7094934007SEA4 | 41.8 ppb |
| 2019-06-20 | 7094934008SEA4 | 150.0 ppb |