1,1-Dichloroethylene
Colonial Woods Water System
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 | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 1 | 0 | ND |
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 | Lab ID | Result |
---|---|---|
2014-07-21 | C406641-01 | ND |
2015-08-06 | ND | |
2015-11-12 | ND | |
2016-02-03 | C516425-01 | ND |
2016-11-14 | CZ12584-01 | ND |
2017-08-09 | CA07552-01 | ND |
2017-12-04 | CA12743-01 | ND |
2018-11-01 | CB13333-01 | ND |