1,1-Dichloroethylene
Suffolk County Water Authority
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.00963 ppb | 1 | 1 | 0.00963 ppb |
2015 | ND | 1 | 0 | ND |
2016 | 0.01000 ppb | 1 | 1 | 0.01000 ppb |
2017 | 0.0107 ppb | 1 | 1 | 0.0107 ppb |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-06-01 | 0.00963 ppb* | |
2015-06-01 | ND* | |
2016-06-01 | 0.01000 ppb* | |
2017-06-01 | 0.0107 ppb* |
* Sample result is taken from the system's CCR report.