Asbestos
Calleguas Municipal 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.
45
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 | 5 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-01-10 | 0004-010-1130 | ND |
| 2014-03-21 | 0004-007-1125 | ND |
| 2014-04-11 | 0004-009-1000 | ND |
| 2014-04-18 | 0004-011-1030 | ND |
| 2014-05-07 | 0004-004-0915 | ND |
| 2015-02-02 | 0004-004-0815 | ND |
| 2015-02-19 | 0004-017-1415 | ND |
| 2015-10-21 | 0004-014-1020 | ND |
| 2015-10-27 | 0004-015-1300 | ND |
| 2015-10-27 | 0004-016-1130 | ND |
| 2015-10-27 | 0004-012-1030 | ND |
| 2015-11-04 | 0004-004-1340 | ND |
| 2015-11-05 | 0004-013-1140 | ND |
| 2016-04-04 | 2283-004-0840 | ND |
| 2016-04-05 | 2283-023-1000 | ND |
| 2016-04-05 | 2283-022-0930 | ND |
| 2016-04-06 | 2283-018-1100 | ND |
| 2016-04-06 | 2283-021-1150 | ND |
| 2016-04-06 | 2283-020-1305 | ND |
| 2016-04-06 | 2283-019-1030 | ND |
| 2016-11-07 | 2283-004-0745 | ND |
| 2017-03-21 | 2283-004-1040 | ND |
| 2017-04-17 | 2283-009-1245 | ND |
| 2017-04-17 | 2283-008-1005 | ND |
| 2017-04-18 | 2283-006-1130 | ND |
| 2017-04-19 | 2283-011-1050 | ND |
| 2017-10-16 | 2283-004-0855 | ND |
| 2017-11-06 | 2283-010-1120 | ND |
| 2017-11-06 | 2283-007-1015 | ND |
| 2018-02-13 | 2283-015-1050 | ND |
| 2018-02-13 | 2283-016-0945 | ND |
| 2018-02-26 | 2283-004-0915 | ND |
| 2018-03-07 | 2283-013-1320 | ND |
| 2018-03-08 | 2283-012-1000 | ND |
| 2018-03-08 | 2283-014-1330 | ND |
| 2018-03-18 | 2283-014-1330 | ND |
| 2018-04-30 | 2283-017-1030 | ND |
| 2018-11-05 | 2283-004-0820 | ND |
| 2019-01-29 | 2283-004-0930 | ND |
| 2019-02-04 | 2283-018-0945 | ND |
| 2019-02-05 | 2283-022-1020 | ND |
| 2019-02-05 | 2283-023-0945 | ND |
| 2019-02-07 | 2283-020-0840 | ND |
| 2019-02-11 | 2283-021-0930 | ND |
| 2019-02-19 | 2283-019-1100 | ND |