1,1-Dichloroethylene
Upper Makefield Enclave
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
8
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 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2015-11-16 | 13504792 | ND |
| 2016-02-09 | 13860685 | ND |
| 2016-04-19 | 14091438 | ND |
| 2016-08-16 | 14722596 | ND |
| 2016-11-10 | 15215533 | ND |
| 2017-08-16 | 16554248 | ND |
| 2018-04-20 | 8010453-01 | ND |
| 2019-04-15 | 9011916-01 | ND |