1,1-Dichloroethylene
Alton Water Works
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 | 3 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-03-24 | 129795.01 | ND |
| 2015-03-24 | 141475.01 | ND |
| 2015-04-02 | 141786.01 | ND |
| 2015-04-02 | 141787.01 | ND |
| 2016-03-17 | A153943.01 | ND |
| 2016-06-20 | 157373.01 | ND |
| 2017-03-02 | 166100.01 | ND |
| 2017-06-19 | 170033.01 | ND |
| 2018-03-25 | 179876.01 | ND |
| 2018-06-07 | 182788.01 | ND |
| 2019-03-05 | 192582.01 | ND |
| 2019-05-15 | 195473.01 | ND |