Manganese
Western Hills 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.
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 | 1.50 ppb | 3 | 3 | 1.30 ppb - 1.90 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 1.20 ppb | 1 | 1 | 1.20 ppb |
| 2021 | 6.43 ppb | 3 | 3 | 1.50 ppb - 14.9 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 1.10 ppb | 1 | 1 | 1.10 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 |
|---|---|---|
| 2018-09-18 | AE40631 | 1.90 ppb |
| 2018-09-18 | AE40635 | 1.30 ppb |
| 2018-09-18 | AE40636 | 1.30 ppb |
| 2020-06-15 | AF15191 | 1.20 ppb |
| 2021-08-03 | AF64353 | 2.90 ppb |
| 2021-08-03 | AF64355 | 1.50 ppb |
| 2021-08-03 | AF64356 | 14.9 ppb |
| 2023-07-12 | AG48071 | 1.10 ppb |