1,1-Dichloroethylene
Pennsylvania American Water Company Butler
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 |
|---|---|---|
| 2018-03-12 | 38836501 | ND |
| 2019-03-05 | 43248101 | ND |
| 2020-03-09 | 21939749.00 | ND |
| 2021-03-01 | 24158505.00 | ND |
| 2022-03-07 | 26380900.00 | ND |
| 2023-03-07 | 28618854.00 | ND |
| 2023-03-14 | 28618949.00 | ND |
| 2023-03-27 | 28618970.00 | ND |
| 2023-04-10 | 28809069.00 | ND |
| 2023-04-25 | 28809090.00 | ND |
| 2023-05-09 | 29010735.00 | ND |