1,1-Dichloroethylene
Golden State Water Company (GSWC) - San Dimas
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
12
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 7 ppb
The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-19 | 9588-051-0930 | ND |
| 2014-05-14 | 9588-014-1010 | ND |
| 2015-02-18 | 9588-051-0920 | ND |
| 2015-05-18 | 9588-014-0915 | ND |
| 2016-02-16 | 9588-051-0825 | ND |
| 2016-05-12 | 9588-014-0925 | ND |
| 2017-01-05 | 9588-051-0800 | ND |
| 2017-05-15 | 9588-014-0905 | ND |
| 2018-02-15 | 9588-051-1045 | ND |
| 2018-05-16 | 9588-014-0855 | ND |
| 2019-02-11 | 9588-051-0835 | ND |
| 2019-06-12 | 9588-014-0830 | ND |