Aluminum
Natchitoches Water System
Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.
11
Samples
0
Samples exceeding legal limit (MCL)
6
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 850.0 ppb | 2 | 2 | 850.0 ppb |
| 2019 | 750.0 ppb | 2 | 2 | 750.0 ppb |
| 2020 | 1,500.0 ppb | 1 | 1 | 1,500.0 ppb |
| 2021 | 1,820.0 ppb | 1 | 1 | 1,820.0 ppb |
| 2022 | 100.0 ppb | 1 | 1 | 100.0 ppb |
| 2023 | 62.5 ppb | 4 | 4 | 30.0 ppb - 100.0 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 |
|---|---|---|
| 2018-01-22 | 35370029001 | 850.0 ppb |
| 2018-01-22 | 35370029001 | 850.0 ppb |
| 2019-02-25 | 35450970001 | 750.0 ppb |
| 2019-02-25 | 35450970001 | 750.0 ppb |
| 2020-02-17 | B2000776-001 | 1,500.0 ppb |
| 2021-01-20 | B2100176-001 | 1,820.0 ppb |
| 2022-01-26 | B2200400-001 | 100.0 ppb |
| 2023-03-06 | B2300971-001 | 100.0 ppb |
| 2023-08-18 | B2303431-001 | 50.0 ppb |
| 2023-08-18 | B2303431-002 | 70.0 ppb |
| 2023-08-18 | B2303431-003 | 30.0 ppb |