Manganese
City of Aledo
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 | 0.267 ppb | 19 | 7 | ND - 1.30 ppb |
| 2019 | 1.37 ppb | 3 | 1 | ND - 4.10 ppb |
| 2020 | 10.00 ppb | 5 | 1 | ND - 50.0 ppb |
| 2021 | ND | 5 | 0 | ND |
| 2022 | 9.87 ppb | 3 | 2 | ND - 26.0 ppb |
| 2023 | 2.40 ppb | 5 | 1 | ND - 12.0 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 |
|---|---|---|
| 2019-08-14 | Q1955170001 | ND |
| 2019-08-14 | Q1955170002 | ND |
| 2019-08-14 | Q1955170015 | 4.10 ppb |
| 2022-09-29 | Q2229352004 | ND |
| 2022-09-29 | Q2229352007 | 26.0 ppb |
| 2022-11-21 | Q2234952003 | 3.60 ppb |