Manganese
City of Hemphill
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 | 23.0 ppb | 1 | 1 | 23.0 ppb |
| 2019 | 21.0 ppb | 1 | 1 | 21.0 ppb |
| 2020 | 45.0 ppb | 1 | 1 | 45.0 ppb |
| 2021 | 8.70 ppb | 1 | 1 | 8.70 ppb |
| 2022 | 10.00 ppb | 1 | 1 | 10.00 ppb |
| 2023 | 31.0 ppb | 1 | 1 | 31.0 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 |
|---|---|---|
| 2018-02-21 | Q1807619004 | 23.0 ppb |
| 2019-01-09 | Q1901414002 | 21.0 ppb |
| 2020-01-23 | Q2002804002 | 45.0 ppb |
| 2021-03-16 | Q2106924002 | 8.70 ppb |
| 2022-01-24 | Q2202260002 | 10.00 ppb |
| 2023-01-05 | Q2300645003 | 31.0 ppb |