Aluminum
Gowc North Water System
Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.
29
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 360.0 ppb | 1 | 1 | 360.0 ppb |
| 2021 | 6.67 ppb | 3 | 1 | ND - 20.0 ppb |
| 2022 | 8.46 ppb | 13 | 7 | ND - 20.0 ppb |
| 2023 | 30.0 ppb | 12 | 8 | ND - 110.0 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 |
|---|---|---|
| 2020-12-02 | B2006458-001 | 360.0 ppb |
| 2021-02-01 | B2100475-001 | 20.0 ppb |
| 2021-05-03 | B2102123-001 | ND |
| 2021-05-03 | B2102123-002 | ND |
| 2022-02-09 | B2200572-002 | 20.0 ppb |
| 2022-02-09 | B2200572-001 | 20.0 ppb |
| 2022-02-15 | B2200664-002 | ND |
| 2022-02-15 | B2200664-001 | 20.0 ppb |
| 2022-04-04 | B2201638-001 | ND |
| 2022-04-04 | B2201638-002 | ND |
| 2022-09-27 | B2204850-001 | 10.00 ppb |
| 2022-10-24 | B2205110-002 | ND |
| 2022-10-24 | B2205110-001 | ND |
| 2022-11-22 | B2205635-004 | 10.00 ppb |
| 2022-11-22 | B2205635-003 | 20.0 ppb |
| 2022-11-22 | B2205635-002 | 10.00 ppb |
| 2022-11-22 | B2205635-001 | ND |
| 2023-01-23 | B2300295-006 | 20.0 ppb |
| 2023-01-23 | B2300295-005 | 10.00 ppb |
| 2023-01-23 | B2300295-004 | 10.00 ppb |
| 2023-01-23 | B2300295-003 | 20.0 ppb |
| 2023-01-23 | B2300295-001 | ND |
| 2023-01-27 | B2300529-001 | 20.0 ppb |
| 2023-02-22 | B2300746-001 | ND |
| 2023-04-03 | B2301548-002 | ND |
| 2023-04-03 | B2301548-001 | ND |
| 2023-07-10 | B2302776-004 | 100.0 ppb |
| 2023-07-10 | B2302776-002 | 110.0 ppb |
| 2023-07-10 | B2302776-001 | 70.0 ppb |