Manganese
Fort Bend County Municipal Utility District 128
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.
4
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 | 4.66 ppb | 67 | 16 | ND - 55.0 ppb |
| 2019 | 2.33 ppb | 69 | 9 | ND - 42.0 ppb |
| 2020 | 1.43 ppb | 4 | 2 | ND - 3.40 ppb |
| 2021 | 5.10 ppb | 21 | 5 | ND - 67.2 ppb |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 7.92 ppb | 6 | 5 | ND - 15.3 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 |
|---|---|---|
| 2020-01-21 | 116672Q | 3.40 ppb |
| 2020-04-21 | 118021Q | ND |
| 2020-07-21 | 119965Q | 2.30 ppb |
| 2020-10-07 | 121964Q | ND |