Asbestos
San Lorenzo Valley Water District
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 7 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
MFL = million fibers per liter
State and national drinking water standards and health guidelines
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 |
---|---|---|
2015-05-06 | 9590-010-1345 | ND |
2015-05-06 | 0004-022-1410 | ND |
2015-05-06 | 9590-023-1315 | ND |
2015-05-06 | 9590-024-1300 | ND |
2015-05-06 | 9590-025-1425 | ND |
2015-05-06 | 9590-026-1400 | ND |
2015-05-06 | 9590-034-1300 | ND |