1,1-Dichloroethylene
Harris County MUD 157
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 | 1 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 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 |
---|---|---|
2014-08-07 | AC62556 | ND |
2015-05-15 | AC92350 | ND |
2015-05-15 | AC92346 | ND |
2015-09-29 | AD08995 | ND |
2015-12-07 | AD15794 | ND |
2016-02-11 | AD23387 | ND |
2016-02-11 | AD23379 | ND |
2017-03-14 | AD74883 | ND |
2017-03-14 | AD74945 | ND |
2017-12-15 | AE07852 | ND |
2018-03-28 | AE20383 | ND |
2018-03-28 | AE20419 | ND |
2019-02-20 | AE55091 | ND |
2019-12-19 | AE92885 | ND |