1,1-Dichloroethylene
The Harbor
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
14
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 | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 5 | 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 |
|---|---|---|
| 2015-06-08 | 345744 | ND |
| 2015-08-19 | 390604 | ND |
| 2015-11-17 | 428018 | ND |
| 2016-02-17 | 494511 | ND |
| 2016-05-24 | 551139 | ND |
| 2016-08-17 | 604725 | ND |
| 2017-02-14 | 708866 | ND |
| 2018-02-11 | 907920 | ND |
| 2018-02-27 | 928373 | ND |
| 2018-05-09 | 967961 | ND |
| 2018-08-14 | 1025112 | ND |
| 2018-11-13 | 1076475 | ND |
| 2019-02-19 | 1123010 | ND |
| 2019-05-13 | 1157718 | ND |