1,1-Dichloroethylene
City of Richwood
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-04-17 | AC51086 | ND |
| 2014-04-17 | AC51088 | ND |
| 2014-04-17 | AC51096 | ND |
| 2015-01-27 | AC77951 | ND |
| 2015-01-27 | AC77961 | ND |
| 2015-01-27 | AC77955 | ND |
| 2016-01-13 | AD17923 | ND |
| 2016-01-13 | AD17921 | ND |
| 2016-01-13 | AD17895 | ND |
| 2017-01-05 | AD63251 | ND |
| 2017-01-05 | AD63229 | ND |
| 2017-01-05 | AD63237 | ND |
| 2018-02-07 | AE13021 | ND |
| 2018-04-05 | AE21468 | ND |
| 2018-04-05 | AE21466 | ND |
| 2019-01-09 | AE49225 | ND |
| 2019-01-09 | AE49239 | ND |
| 2019-02-12 | AE54138 | ND |