Aluminum
Guadalupe Blanco River Authority
Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.
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 | 71.6 ppb | 1 | 1 | 71.6 ppb |
| 2019 | 48.1 ppb | 1 | 1 | 48.1 ppb |
| 2020 | 45.8 ppb | 1 | 1 | 45.8 ppb |
| 2021 | 42.5 ppb | 1 | 1 | 42.5 ppb |
| 2022 | 31.8 ppb | 1 | 1 | 31.8 ppb |
| 2023 | 40.5 ppb | 1 | 1 | 40.5 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 600 ppb
The EWG Health Guideline of 600 ppb for aluminum was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the brain and nervous system.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-01 | AE16249 | 71.6 ppb |
| 2019-02-25 | AE55843 | 48.1 ppb |
| 2020-03-16 | AF02873 | 45.8 ppb |
| 2021-03-22 | AF47815 | 42.5 ppb |
| 2022-02-14 | AF84495 | 31.8 ppb |
| 2023-02-15 | AG29010 | 40.5 ppb |