1,1-Dichloroethylene
College Township Water Authority
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 |
|---|---|---|
| 2014-03-04 | 4C05048-01 | ND |
| 2014-03-04 | 4C05048-02 | ND |
| 2015-09-09 | 13314012 | ND |
| 2015-09-09 | 13314033 | ND |
| 2016-06-02 | 14470575 | ND |
| 2016-10-13 | 15137797 | ND |
| 2017-02-23 | 15708871 | ND |
| 2017-10-16 | 16936512 | ND |
| 2018-08-22 | (103) SPRING | ND |
| 2018-11-27 | (104) | ND |
| 2019-08-26 | (103) SPRING | ND |
| 2019-11-25 | 9K29022-01 | ND |