1,1-Dichloroethylene
City of Mount Airy
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 |
|---|---|---|
| 2014-02-28 | 779717V | ND |
| 2014-02-28 | 779718V | ND |
| 2015-02-10 | ND | |
| 2015-02-10 | ND | |
| 2016-01-29 | 14400-05 | ND |
| 2016-01-29 | 14400-06 | ND |
| 2017-01-31 | 30295-03 | ND |
| 2017-01-31 | 30295-09 | ND |
| 2018-01-30 | 45855-03 | ND |
| 2018-01-30 | 45855-06 | ND |
| 2019-01-29 | 62217-03 | ND |
| 2019-01-29 | 62217-06 | ND |