1,1-Dichloroethylene
City of Ontario
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 | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-06-02 | 140603046003-V | ND |
2015-04-22 | 1504987002-V | ND |
2016-01-09 | 140110031004-V | ND |
2016-04-20 | 1604902002-V | ND |
2017-04-19 | 1704759002-V | ND |
2018-04-19 | 1804853002-V | ND |
2018-07-11 | 1807589003-V | ND |
2019-07-16 | 1907762003-V | ND |