1,1-Dichloroethylene
East Hempfield Water Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
37
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 | 7 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 13 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-09-30 | 14032956-01 | ND |
| 2014-09-30 | 14032956-02 | ND |
| 2014-09-30 | 14032956-03 | ND |
| 2014-09-30 | 14032956-04 | ND |
| 2014-12-29 | 14122146-01 | ND |
| 2014-12-29 | 14122146-02 | ND |
| 2014-12-29 | 14122146-03 | ND |
| 2015-09-15 | 13360709 | ND |
| 2015-09-15 | 13360730 | ND |
| 2015-09-15 | 13360688 | ND |
| 2015-09-15 | 13360751 | ND |
| 2016-12-27 | 15481336 | ND |
| 2016-12-27 | 15481315 | ND |
| 2016-12-27 | 15481357 | ND |
| 2016-12-27 | 15481294 | ND |
| 2017-03-16 | 15901259 | ND |
| 2017-03-16 | 15901280 | ND |
| 2017-03-16 | 15901508 | ND |
| 2017-03-16 | 15901301 | ND |
| 2017-03-16 | 15901238 | ND |
| 2017-05-23 | 16218716 | ND |
| 2017-05-23 | 16218737 | ND |
| 2017-05-23 | 16218467 | ND |
| 2017-05-23 | 16218446 | ND |
| 2017-08-30 | 16844202 | ND |
| 2017-08-30 | 16844223 | ND |
| 2017-11-15 | 17129204 | ND |
| 2017-11-15 | 17129183 | ND |
| 2018-02-28 | 7104860-01 | ND |
| 2018-06-06 | 8044976-01 | ND |
| 2018-06-06 | 8044976-02 | ND |
| 2018-06-06 | 8044976-03 | ND |
| 2018-11-19 | 8015122-01 | ND |
| 2019-05-20 | 9045072-01 | ND |
| 2019-05-20 | 9045072-02 | ND |
| 2019-05-20 | 9045072-03 | ND |
| 2019-08-21 | 9085002-03 | ND |