Aluminum
Chalk Hill Special Utility District
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 | 7.60 ppb | 1 | 1 | 7.60 ppb |
| 2019 | 8.50 ppb | 2 | 2 | 5.00 ppb - 12.0 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 7.90 ppb | 1 | 1 | 7.90 ppb |
| 2022 | 3.10 ppb | 2 | 1 | ND - 6.20 ppb |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-06-20 | Q1824487001 | 7.60 ppb |
| 2019-01-10 | Q1901411001 | 12.0 ppb |
| 2019-04-08 | Q1914000009 | 5.00 ppb |
| 2021-11-09 | Q2131359006 | 7.90 ppb |
| 2022-12-13 | Q2237298008 | 6.20 ppb |
| 2022-12-13 | Q2237298009 | ND |