1,1-Dichloroethylene
West Harris County Municipal Utility District 15
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 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 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 |
|---|---|---|
| 2014-12-22 | AC75661 | ND |
| 2014-12-22 | AC75659 | ND |
| 2015-08-04 | AD02361 | ND |
| 2015-08-04 | AD02357 | ND |
| 2016-02-01 | AD21063 | ND |
| 2016-02-01 | AD21097 | ND |
| 2017-01-24 | AD66468 | ND |
| 2017-03-21 | AD76063 | ND |
| 2018-03-05 | AE16632 | ND |
| 2018-03-05 | AE16636 | ND |
| 2019-01-28 | AE51688 | ND |
| 2019-04-23 | AE63390 | ND |