1,1-Dichloroethylene
West Jefferson Waterworks District 2
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
14
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-02-04 | AD88742 | ND |
| 2014-02-04 | AD88742 | ND |
| 2015-03-16 | 35179807004 | ND |
| 2015-03-16 | 35179807004 | ND |
| 2016-01-27 | 35226999004 | ND |
| 2016-01-27 | 35226999004 | ND |
| 2017-02-22 | 35296827004 | ND |
| 2017-02-22 | 35296827004 | ND |
| 2018-01-30 | 35371297004 | ND |
| 2018-01-30 | 35371297004 | ND |
| 2019-02-05 | 35446731001 | ND |
| 2019-02-05 | 35446731001 | ND |
| 2019-09-05 | 35495391001 | ND |
| 2019-09-05 | 35495391001 | ND |