Asbestos
Stanislaus Regional 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.
7
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 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 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 |
|---|---|---|
| 2018-09-12 | CA5010043_001_001-201809120915 | ND |
| 2019-03-14 | CA5010043_001_001-201903140900 | ND |
| 2019-09-19 | CA5010043_001_001-201909191030 | ND |
| 2020-04-16 | CA5010043_001_001-202004160830 | ND |
| 2020-09-17 | CA5010043_001_001-202009170900 | ND |
| 2021-03-18 | CA5010043_001_001-202103180820 | ND |
| 2021-09-16 | CA5010043_001_001-202109160830 | ND |