1,1-Dichloroethylene
Pennsylvania American Water Company New Castle
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
11
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-03-13 | 38838701 | ND |
| 2019-03-05 | 43249601 | ND |
| 2020-03-02 | 21958181.00 | ND |
| 2021-03-03 | 24177544.00 | ND |
| 2022-03-03 | 26399641.00 | ND |
| 2023-01-03 | 28286019.00 | ND |
| 2023-03-15 | 28638084.00 | ND |
| 2023-03-29 | 28638190.00 | ND |
| 2023-04-12 | 28831003.00 | ND |
| 2023-04-24 | 28831145.00 | ND |
| 2023-05-08 | 29031509.00 | ND |