Asbestos
St Charles Water District 1 East Bank
Asbestos is a mineral fiber introduced into water by the dissolution of asbestos-containing minerals and from decay of asbestos cement in water mains. Asbestos causes cancer when ingested or inhaled.
21
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 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
MFL = million fibers per liter
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 7 MFL
The legal limit for asbestos, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.
MFL = million fibers per liter
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-01-22 | 35483799002 | ND |
| 2019-01-22 | 35483799001 | ND |
| 2019-01-22 | 35483799002 | ND |
| 2019-01-22 | 35483799001 | ND |
| 2020-03-05 | 35536156001 | ND |
| 2020-03-05 | 35536156002 | ND |
| 2020-03-05 | 35536156003 | ND |
| 2020-03-05 | 35536156004 | ND |
| 2021-01-28 | 35608550002 | ND |
| 2021-01-28 | 35608550004 | ND |
| 2021-01-28 | 35608550003 | ND |
| 2021-01-28 | 35608550001 | ND |
| 2021-10-25 | 35674116001 | ND |
| 2022-02-02 | 35695493001 | ND |
| 2022-02-02 | 35695493002 | ND |
| 2022-02-02 | 35695495001 | ND |
| 2022-02-02 | 35695495002 | ND |
| 2023-03-20 | 146501 | ND |
| 2023-03-20 | 146502 | ND |
| 2023-03-20 | 35788999001 | ND |
| 2023-03-20 | 35788999002 | ND |