Aluminum
Tud - Tuolumne Water System
Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.
12
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 | ND | 2 | 0 | ND |
| 2019 | 115.0 ppb | 2 | 1 | ND - 230.0 ppb |
| 2020 | 265.0 ppb | 2 | 1 | ND - 530.0 ppb |
| 2021 | 105.0 ppb | 2 | 1 | ND - 210.0 ppb |
| 2022 | 110.0 ppb | 2 | 1 | ND - 220.0 ppb |
| 2023 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2018-08-22 | CA5510003_002_002-201808220810 | ND |
| 2018-08-22 | CA5510003_003_003-201808220824 | ND |
| 2019-08-13 | CA5510003_002_002-201908131105 | 230.0 ppb |
| 2019-08-13 | CA5510003_003_003-201908131135 | ND |
| 2020-08-13 | CA5510003_002_002-202008130940 | 530.0 ppb |
| 2020-08-13 | CA5510003_003_003-202008130925 | ND |
| 2021-08-23 | CA5510003_002_002-202108231405 | 210.0 ppb |
| 2021-08-23 | CA5510003_003_003-202108231350 | ND |
| 2022-08-10 | CA5510003_002_002-202208100755 | 220.0 ppb |
| 2022-08-10 | CA5510003_003_003-202208100745 | ND |
| 2023-08-03 | CA5510003_003_003-202308030905 | ND |
| 2023-08-03 | CA5510003_002_002-202308030855 | ND |