1,1-Dichloroethylene
North Milam Water Supply Corporation
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
11
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 | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 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 |
|---|---|---|
| 2015-05-12 | AC91664 | ND |
| 2016-02-11 | AD23429 | ND |
| 2016-10-31 | AD55582 | ND |
| 2017-02-08 | AD69648 | ND |
| 2017-02-08 | AD69646 | ND |
| 2017-04-04 | AD78297 | ND |
| 2017-07-11 | AD88887 | ND |
| 2018-01-25 | AE10576 | ND |
| 2018-06-11 | AE29280 | ND |
| 2019-05-15 | AE66516 | ND |
| 2019-05-15 | AE66510 | ND |