1,1-Dichloroethylene
Hartford Waterworks
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
13
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-03-18 | 775375 | ND |
| 2014-03-18 | 775372 | ND |
| 2014-03-18 | 775378 | ND |
| 2014-03-18 | 775381 | ND |
| 2014-03-18 | 775384 | ND |
| 2015-01-28 | 840841 | ND |
| 2016-04-05 | 913985 | ND |
| 2017-03-21 | 978876 | ND |
| 2017-03-21 | 978867 | ND |
| 2017-03-21 | 978879 | ND |
| 2017-03-21 | 978873 | ND |
| 2017-03-21 | 978870 | ND |
| 2018-02-13 | 1040931 | ND |