1,1-Dichloroethylene
Gonzales County Water Supply Corporation
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-02-20 | AC43865 | ND |
2014-06-05 | AC56103 | ND |
2014-09-05 | AC66060 | ND |
2015-02-04 | AC79291 | ND |
2015-02-04 | AC79275 | ND |
2015-02-04 | AC79273 | ND |
2015-02-04 | AC79281 | ND |
2015-07-22 | AD00644 | ND |
2016-01-19 | AD18620 | ND |
2016-01-19 | AD18652 | ND |
2016-09-09 | AD49182 | ND |
2017-03-13 | AD75502 | ND |
2017-03-13 | AD75498 | ND |
2017-03-13 | AD75500 | ND |
2018-02-08 | AE13037 | ND |
2018-03-12 | AE17864 | ND |
2018-03-12 | AE17882 | ND |
2018-03-12 | AE17842 | ND |
2019-01-09 | AE49237 | ND |
2019-01-09 | AE49241 | ND |