1,1-Dichloroethylene
Norwich Public Utilities
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-05-01 | 6300210VOC1 | ND |
2014-05-01 | 6300211VOC1 | ND |
2014-05-01 | 6300209VOC1 | ND |
2015-08-19 | 6301190VOC1 | ND |
2015-08-19 | 6301191VOC1 | ND |
2015-08-19 | 6301192VOC1 | ND |
2016-11-17 | 6302524VOC1 | ND |
2016-11-17 | 6302525VOC1 | ND |
2016-11-17 | 6302526VOC1 | ND |
2017-06-15 | PH-0453-6303177V | ND |
2017-06-15 | PH-0453-6303179V | ND |
2017-06-15 | PH-0453-6303178V | ND |
2018-09-18 | PH-0453-6304496V | ND |
2018-09-18 | PH-0453-6304497V | ND |
2018-10-03 | PH-0453-6304498V | ND |
2019-08-29 | PH-0453-6305609V | ND |
2019-08-29 | PH-0453-6305611V | ND |
2019-09-16 | PH-0453-6305610V | ND |