1,1-Dichloroethylene
City of Hearne
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
24
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 | 2 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 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 |
|---|---|---|
| 2014-07-30 | AC61547 | ND |
| 2014-07-30 | AC61543 | ND |
| 2015-01-20 | AC76832 | ND |
| 2015-01-20 | AC76828 | ND |
| 2015-01-20 | AC76834 | ND |
| 2015-05-04 | AC90351 | ND |
| 2015-06-25 | AC97471 | ND |
| 2015-08-21 | AD04926 | ND |
| 2016-02-03 | AD21876 | ND |
| 2016-02-03 | AD21872 | ND |
| 2016-08-23 | AD47463 | ND |
| 2016-08-23 | AD47459 | ND |
| 2017-08-30 | AD94507 | ND |
| 2017-08-30 | AD94501 | ND |
| 2017-08-30 | AD94509 | ND |
| 2017-09-26 | AD98007 | ND |
| 2018-06-21 | AE31007 | ND |
| 2018-06-21 | AE30999 | ND |
| 2018-06-21 | AE31005 | ND |
| 2018-06-21 | AE31001 | ND |
| 2019-05-16 | AE66873 | ND |
| 2019-05-16 | AE66875 | ND |
| 2019-05-16 | AE66871 | ND |
| 2019-05-16 | AE66869 | ND |