1,1-Dichloroethylene
South Middleton Twp Water Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-17 | 14021713-002 | ND |
| 2014-02-17 | 14021713-003 | ND |
| 2014-02-17 | 14021713-001 | ND |
| 2015-02-16 | 12479760 | ND |
| 2015-02-16 | 12479793 | ND |
| 2015-02-16 | 12479826 | ND |
| 2016-05-16 | 14360360 | ND |
| 2016-05-16 | 14360384 | ND |
| 2016-05-16 | 14360335 | ND |
| 2017-05-16 | 16209358 | ND |
| 2017-05-16 | 16209381 | ND |
| 2017-05-16 | 16209335 | ND |
| 2018-05-15 | 8052993-01 | ND |
| 2018-05-15 | 8052993-02 | ND |
| 2018-05-15 | 8052993-03 | ND |
| 2019-05-14 | 9052836-01 | ND |
| 2019-05-14 | 9052836-02 | ND |
| 2019-05-14 | 9052836-03 | ND |