Asbestos
California Water Service (CWS) - Los Altos Suburban
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.
19
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 19 | 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 |
|---|---|---|
| 2015-01-14 | 9590-021-1225 | ND |
| 2015-01-14 | 9590-037-0930 | ND |
| 2015-01-14 | 9590-035-1110 | ND |
| 2015-01-14 | 9590-032-1100 | ND |
| 2015-01-14 | 9590-030-1050 | ND |
| 2015-01-14 | 9590-029-1030 | ND |
| 2015-01-14 | 9590-028-1045 | ND |
| 2015-01-14 | 9590-024-1000 | ND |
| 2015-01-14 | 9590-023-1230 | ND |
| 2015-01-14 | 9590-022-1202 | ND |
| 2015-01-14 | 9590-002-1123 | ND |
| 2015-01-14 | 9590-020-1247 | ND |
| 2015-01-14 | 9590-018-1305 | ND |
| 2015-01-14 | 9590-015-1215 | ND |
| 2015-01-14 | 9590-011-0906 | ND |
| 2015-01-14 | 9590-010-0858 | ND |
| 2015-01-14 | 9590-008-0853 | ND |
| 2015-01-21 | 9590-016-1145 | ND |
| 2015-07-07 | 9590-008-1053 | ND |