1,1-Dichloroethylene
City of Denton
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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-09-22 | Q1446473002 | ND |
2014-09-22 | Q1446473004 | ND |
2015-09-15 | Q1535735002 | ND |
2015-09-15 | Q1535735005 | ND |
2016-08-04 | Q1632452001 | ND |
2016-08-04 | Q1632452003 | ND |
2017-06-01 | Q1723398001 | ND |
2017-07-24 | Q1730630002 | ND |
2017-07-24 | Q1730630011 | ND |
2017-11-14 | Q1758193009 | ND |
2018-01-30 | Q1803503009 | ND |
2018-09-13 | Q1836569006 | ND |
2019-03-12 | Q1910518001 | ND |
2019-09-16 | Q1965017005 | ND |