1,1-Dichloroethylene
Montgomery County Municipal Utility District 83
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
7
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 | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-08-19 | AC64324 | ND |
| 2015-02-24 | AC81689 | ND |
| 2015-05-28 | AC93613 | ND |
| 2016-11-22 | AD59054 | ND |
| 2017-04-27 | AD81510 | ND |
| 2018-09-11 | AE39602 | ND |
| 2019-11-25 | AE90428 | ND |