Manganese
City of Hearne
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)
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 | 10.4 ppb | 2 | 2 | 8.60 ppb - 12.2 ppb |
| 2020 | 6.45 ppb | 2 | 2 | 4.60 ppb - 8.30 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 7.00 ppb | 2 | 2 | 5.50 ppb - 8.50 ppb |
| 2023 | 8.80 ppb | 2 | 2 | 4.90 ppb - 12.7 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 |
|---|---|---|
| 2019-05-16 | AE66756 | 8.60 ppb |
| 2019-05-16 | AE66757 | 12.2 ppb |
| 2020-04-23 | AF07831 | 8.30 ppb |
| 2020-06-30 | AF17364 | 4.60 ppb |
| 2022-06-22 | AG01874 | 8.50 ppb |
| 2022-06-22 | AG01875 | 5.50 ppb |
| 2023-06-13 | AG44139 | 12.7 ppb |
| 2023-06-13 | AG44140 | 4.90 ppb |