1,1-Dichloroethylene
Rison Waterworks
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 6 | 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 |
|---|---|---|
| 2014-02-05 | 14037002909 | ND |
| 2014-05-05 | 14128006609 | ND |
| 2014-11-19 | 14324008001 | ND |
| 2015-12-01 | 15337001701 | ND |
| 2016-01-25 | 16028003201 | ND |
| 2016-04-25 | 16119004101 | ND |
| 2016-05-02 | 16126015701 | ND |
| 2016-09-12 | 16259004101 | ND |
| 2016-10-17 | 16294003301 | ND |
| 2016-10-17 | 16294003401 | ND |
| 2017-10-04 | 17278011402 | ND |
| 2018-10-23 | 18298000501 | ND |
| 2019-10-22 | 19297000301 | ND |
| 2019-10-22 | 19297000201 | ND |