Asbestos
Quartz Hill 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.
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 9 | 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 |
|---|---|---|
| 2014-07-15 | 2283-021-0714 | ND |
| 2018-04-10 | 2283-021-0810 | ND |
| 2018-04-10 | 2283-012-0710 | ND |
| 2018-04-10 | 2283-015-0735 | ND |
| 2018-04-10 | 2283-005-0715 | ND |
| 2018-04-10 | 2283-016-0800 | ND |
| 2018-04-10 | 2283-018-0745 | ND |
| 2018-04-10 | 2283-017-0740 | ND |
| 2018-04-17 | 2283-006-1145 | ND |
| 2018-04-17 | 2283-009-1135 | ND |
| 2019-04-09 | 2283-015-0835 | ND |
| 2019-04-09 | 2283-021-0925 | ND |
| 2019-04-09 | 2283-018-0910 | ND |
| 2019-04-09 | 2283-017-0900 | ND |
| 2019-04-09 | 2283-012-0730 | ND |
| 2019-04-09 | 2283-009-0825 | ND |
| 2019-04-09 | 2283-006-0805 | ND |
| 2019-04-09 | 2283-005-0750 | ND |
| 2019-06-04 | 2283-016-0800 | ND |