1,1-Dichloroethylene
Grand Junction
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 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 | Result |
|---|---|
| 2014-05-14 | ND |
| 2015-09-09 | ND |
| 2016-02-10 | ND |
| 2016-06-23 | ND |
| 2016-09-07 | ND |
| 2016-12-05 | ND |
| 2017-02-14 | ND |
| 2017-09-19 | ND |
| 2017-11-14 | ND |
| 2018-03-05 | ND |
| 2018-04-16 | ND |
| 2018-08-28 | ND |
| 2018-10-08 | ND |
| 2019-07-03 | ND |