Manganese
Brazosport Water Authority
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 | 6.80 ppb | 1 | 1 | 6.80 ppb |
| 2019 | 7.50 ppb | 1 | 1 | 7.50 ppb |
| 2020 | 2.80 ppb | 1 | 1 | 2.80 ppb |
| 2021 | 5.40 ppb | 1 | 1 | 5.40 ppb |
| 2022 | 4.00 ppb | 1 | 1 | 4.00 ppb |
| 2023 | 30.7 ppb | 1 | 1 | 30.7 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 |
|---|---|---|
| 2018-01-22 | AE09438 | 6.80 ppb |
| 2019-01-10 | AE49304 | 7.50 ppb |
| 2020-03-17 | AF03215 | 2.80 ppb |
| 2021-01-21 | AF40256 | 5.40 ppb |
| 2022-01-24 | AF81210 | 4.00 ppb |
| 2023-05-15 | AG40414 | 30.7 ppb |