1,1-Dichloroethylene
City of Dorchester
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 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 |
|---|---|---|
| 2015-05-13 | Q1517645016 | ND |
| 2015-05-13 | Q1517645001 | ND |
| 2015-09-02 | Q1533992002 | ND |
| 2015-11-24 | Q1546745001 | ND |
| 2016-10-11 | Q1643052002 | ND |
| 2016-10-11 | Q1643052004 | ND |
| 2017-12-12 | Q1765866005 | ND |
| 2017-12-12 | Q1765866002 | ND |
| 2018-07-05 | Q1826628001 | ND |
| 2018-07-05 | Q1826628010 | ND |
| 2019-08-13 | Q1954235002 | ND |
| 2019-08-13 | Q1954235004 | ND |