Asbestos
North Penn Water Authority
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.
12
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 | N/A | 0 | 0 | N/A |
| 2021 | ND | 12 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2021-10-12 | 25404766.00 | ND |
| 2021-10-12 | 25404767.00 | ND |
| 2021-10-12 | 25404768.00 | ND |
| 2021-10-12 | 25404769.00 | ND |
| 2021-10-12 | 25404770.00 | ND |
| 2021-10-12 | 25404771.00 | ND |
| 2021-10-19 | 25405309.00 | ND |
| 2021-10-19 | 25405310.00 | ND |
| 2021-10-19 | 25405311.00 | ND |
| 2021-10-26 | 25405445.00 | ND |
| 2021-10-26 | 25405446.00 | ND |
| 2021-10-26 | 25405447.00 | ND |