1,1-Dichloroethylene
Northern Westchester Joint Water Works
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 | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-06-04 | 1406521-001 POC | ND |
2015-06-17 | 1506H00-001 POC | ND |
2016-12-01 | S013686-03 POC | ND |
2017-06-15 | S019423-01 POC | ND |
2018-05-11 | 7051464001 POCS | ND |
2019-05-31 | 7091708002 POCS | ND |