Manganese
Cottonwood Hills Estates
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.
7
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 24.0 ppb | 2 | 2 | 11.0 ppb - 37.0 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 95.9 ppb | 2 | 2 | 1.70 ppb - 190.0 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-02-13 | Q1805887007 | 37.0 ppb |
| 2018-02-13 | Q1805887008 | 11.0 ppb |
| 2021-03-16 | Q2106819002 | 1.70 ppb |
| 2021-06-16 | Q2115846006 | 190.0 ppb |
| 2023-11-28 | 11843901 | ND |
| 2023-11-28 | 11843902 | ND |
| 2023-11-28 | 11843903 | ND |