1,1-Dichloroethylene
City Of South Shore 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 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 1 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-08-06 | 4080407-01 | ND |
2017-11-01 | 7111499-01 | ND |
2018-03-27 | 8033410-01 | ND |
2018-05-09 | 8051920-01 | ND |
2018-08-01 | 8110005-01 | ND |
2018-11-28 | 8110423-01 | ND |
2019-03-27 | 9030723-01 | ND |
2019-05-29 | 9050275-01 | ND |
2019-08-14 | 9080489-01 | ND |
2019-11-06 | 9110610-01 | ND |