1,1-Dichloroethylene
Chatham Co-North
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 | 4 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-01-14 | C317027-01 | ND |
2014-04-01 | C402461-01 | ND |
2014-07-08 | C406834-01 | ND |
2014-10-06 | C411105-01 | ND |
2015-01-06 | ND | |
2015-04-10 | ND | |
2015-07-01 | ND | |
2015-10-06 | ND | |
2016-01-15 | C515211-01 | ND |
2016-04-13 | CZ02412-01 | ND |
2016-07-14 | CZ07770-01 | ND |
2017-04-26 | CA03279-01 | ND |
2018-04-24 | CB00315-01RE1 | ND |
2019-04-24 | CC06264-01 | ND |