Asbestos
Cucamonga 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.
17
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 | ND | 9 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2014-02-27 | 2283-033-1255 | ND |
| 2014-05-29 | 2283-033-0000 | ND |
| 2014-06-05 | 2283-027-1045 | ND |
| 2014-08-05 | 2283-055-1150 | ND |
| 2014-08-18 | 2283-003-1050 | ND |
| 2014-09-04 | 2283-027-1010 | ND |
| 2014-09-04 | 2283-033-1010 | ND |
| 2014-11-20 | 2283-033-1145 | ND |
| 2014-12-09 | 2283-027-1040 | ND |
| 2015-03-05 | 2283-027-0855 | ND |
| 2015-03-12 | 2283-055-1140 | ND |
| 2015-05-13 | 2283-055-1050 | ND |
| 2015-08-20 | 2283-055-0925 | ND |
| 2015-11-23 | 2283-055-0900 | ND |
| 2016-11-23 | 2283-035-1440 | ND |
| 2019-07-28 | 2283-001-0900 | ND |
| 2019-07-28 | 2283-022-0915 | ND |