1,1-Dichloroethylene
Red Rock Valley Water District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
12
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 | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 3 | 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 | Result |
|---|---|
| 2014-09-23 | ND |
| 2015-08-25 | ND |
| 2016-12-21 | ND |
| 2016-12-27 | ND |
| 2017-12-12 | ND |
| 2018-11-07 | ND |
| 2018-11-07 | ND |
| 2018-11-07 | ND |
| 2019-03-13 | ND |
| 2019-06-26 | ND |
| 2019-09-30 | ND |
| 2019-12-16 | ND |