1,1-Dichloroethylene
Rockingham, City of
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-12-17 | 37729_14-38353 | ND |
| 2015-11-04 | ND | |
| 2016-03-02 | 37729_16-06722 | ND |
| 2016-06-08 | 37729_16-18225 | ND |
| 2016-09-07 | 37729_16-31125 | ND |
| 2016-12-07 | 37729_16-42373 | ND |
| 2017-10-10 | 37729_17-37962 | ND |
| 2018-01-09 | 37729_18-00830 | ND |
| 2019-08-13 | 37729_19-34329 | ND |
| 2019-10-07 | 37729_19-43303 | ND |