Asbestos
Assumption Parish Waterworks 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.
22
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 | 2 | 0 | ND |
| 2021 | 0.13 MFL | 6 | 2 | ND - 0.40 MFL |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2019-01-29 | 35444844001 | ND |
| 2019-01-29 | 35444844001 | ND |
| 2019-02-18 | 35448830001 | ND |
| 2019-02-18 | 35448830001 | ND |
| 2020-03-23 | 35539482001 | ND |
| 2020-03-23 | 35539482002 | ND |
| 2021-03-25 | 35622185002 | 0.40 MFL |
| 2021-03-25 | 35622185001 | ND |
| 2021-07-12 | 35647468001 | ND |
| 2021-07-12 | 35647468002 | 0.40 MFL |
| 2021-11-04 | 35676456001 | ND |
| 2021-12-28 | 35687292001 | ND |
| 2022-02-10 | 35697280001 | ND |
| 2022-03-15 | 35704159001 | ND |
| 2022-04-13 | 35712791001 | ND |
| 2022-08-25 | 35742736001 | ND |
| 2022-12-28 | 35769607001 | ND |
| 2023-02-27 | 35783258001 | ND |
| 2023-02-27 | 35783258002 | ND |
| 2023-04-18 | 146774 | ND |
| 2023-07-12 | 148044 | ND |
| 2023-10-16 | 149878 | ND |