1,1-Dichloroethylene
Cherokee MD
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 | 4 | 0 | ND |
2015 | ND | 7 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 3 | 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 | Result |
---|---|
2014-01-16 | ND |
2014-04-14 | ND |
2014-07-07 | ND |
2014-10-08 | ND |
2015-01-21 | ND |
2015-04-08 | ND |
2015-06-30 | ND |
2015-07-22 | ND |
2015-08-25 | ND |
2015-11-19 | ND |
2015-12-07 | ND |
2016-03-10 | ND |
2016-03-10 | ND |
2016-03-16 | ND |
2016-04-26 | ND |
2016-08-02 | ND |
2016-12-13 | ND |
2017-02-06 | ND |
2017-02-06 | ND |
2017-05-09 | ND |
2017-10-12 | ND |
2018-02-01 | ND |
2018-04-04 | ND |
2018-04-17 | ND |
2018-05-16 | ND |
2019-02-05 | ND |
2019-05-08 | ND |
2019-11-04 | ND |