1,1-Dichloroethylene
Freeport
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
15
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 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-04-15 | 1404933-001A | ND |
| 2014-07-15 | 1407A31-001A | ND |
| 2014-10-14 | 1410825-001A | ND |
| 2015-01-20 | 1501B68-001A | ND |
| 2015-01-20 | 1501B68-002A | ND |
| 2015-01-20 | 1501B68-004A | ND |
| 2016-01-12 | 1601642-002A | ND |
| 2017-01-10 | 1701670-001A | ND |
| 2017-01-18 | 1701B80-001A | ND |
| 2018-01-09 | 1801624-001A | ND |
| 2018-01-09 | 1801624-003A | ND |
| 2018-01-09 | 1801624-005A | ND |
| 2019-01-15 | 1901A98-001A | ND |
| 2019-01-15 | 1901A98-003A | ND |
| 2019-04-09 | 1904805-001A | ND |