Asbestos
Jefferson County Rural Water District 1
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.
8
Samples
1
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 | 2.24 MFL | 4 | 4 | 0.88 MFL - 3.16 MFL |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 3.78 MFL | 4 | 3 | ND - 8.78 MFL |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-04-29 | 2019-4-29 ASB 2 | 3.16 MFL |
| 2019-04-29 | 2019-4-29 ASB 5 | 2.11 MFL |
| 2019-04-29 | 2019-4-29 ASB 6 | 0.88 MFL |
| 2019-04-29 | 2019-4-29 ASB 7 | 2.81 MFL |
| 2022-02-28 | 2022-02-28 ASB 2 | ND |
| 2022-02-28 | 2022-2-28 ASB 5 | 8.78 MFL |
| 2022-02-28 | 2022-02-28 ASB 6 | 5.97 MFL |
| 2022-02-28 | 2022-2-28 ASB 7 | 0.35 MFL |