1,1-Dichloroethylene
Yak Co. - Crewport
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
14
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 1.07 ppb | 3 | 3 | 0.800 ppb - 1.30 ppb |
| 2018 | 1.37 ppb | 7 | 5 | ND - 2.33 ppb |
| 2019 | 0.863 ppb | 4 | 2 | ND - 2.40 ppb |
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 |
|---|---|---|
| 2017-05-09 | 0.800 ppb | |
| 2017-07-18 | 1.30 ppb | |
| 2017-10-04 | 1.10 ppb | |
| 2018-02-20 | 1.40 ppb | |
| 2018-04-09 | 2.10 ppb | |
| 2018-05-08 | 2.33 ppb | |
| 2018-08-14 | ND | |
| 2018-08-14 | ND | |
| 2018-11-13 | 1.74 ppb | |
| 2018-11-13 | 2.05 ppb | |
| 2019-03-18 | ND | |
| 2019-03-18 | ND | |
| 2019-05-20 | 1.05 ppb | |
| 2019-06-13 | 2.40 ppb |