1,1-Dichloroethylene
Annunciation Heights
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 | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 | Result |
---|---|
2014-06-19 | ND |
2014-07-14 | ND |
2014-10-28 | ND |
2015-03-16 | ND |
2015-03-16 | ND |
2015-04-07 | ND |
2015-08-03 | ND |
2015-10-05 | ND |
2016-02-01 | ND |
2016-04-04 | ND |
2016-07-11 | ND |
2016-10-03 | ND |
2017-01-11 | ND |
2017-04-12 | ND |
2017-07-19 | ND |
2017-10-19 | ND |