1,1-Dichloroethylene
Danbury Water Department
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 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 |
|---|---|---|
| 2014-02-18 | E402994-5VOC | ND |
| 2014-02-18 | E402994-6VOC | ND |
| 2015-04-21 | E504H71-2VOC | ND |
| 2015-04-21 | E504H71-1VOC | ND |
| 2016-04-19 | E604J01-5VOC | ND |
| 2016-04-19 | E604J01-6VOC | ND |
| 2017-02-15 | 194887GE | ND |
| 2017-02-15 | 194886GE | ND |
| 2018-02-21 | 210745GE | ND |
| 2018-02-21 | 210744GE | ND |
| 2019-08-15 | VOC1 200545121 | ND |
| 2019-08-15 | VOC1 200545122 | ND |