1,1-Dichloroethylene
Aqua Pa West Chester
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 |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-01-29 | AF74444 | ND |
| 2018-02-22 | AF77012 | ND |
| 2018-03-22 | AF78070 | ND |
| 2019-03-06 | AG10280 | ND |
| 2019-03-06 | AG10262 | ND |
| 2019-03-06 | AG10272 | ND |
| 2019-03-07 | AG10725 | ND |
| 2020-03-10 | 21839023.00 | ND |
| 2020-03-11 | 21839002.00 | ND |
| 2020-04-02 | 22014458.00 | ND |
| 2021-02-10 | 23881861.00 | ND |
| 2021-02-10 | 23881882.00 | ND |
| 2021-02-10 | 23881903.00 | ND |
| 2022-01-28 | 25934693.00 | ND |
| 2022-02-24 | 26110781.00 | ND |
| 2022-03-28 | 26280758.00 | ND |
| 2023-03-23 | 28514070.00 | ND |
| 2023-03-28 | 28514091.00 | ND |