1,1-Dichloroethylene
Pennsylvania American Water Company Yardley
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
35
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 | 3 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2018-04-11 | 39062701 | ND |
| 2018-08-14 | 40630801 | ND |
| 2018-08-14 | 40630201 | ND |
| 2019-04-04 | 43649801 | ND |
| 2019-08-22 | 45815901 | ND |
| 2019-08-22 | 45816001 | ND |
| 2020-01-06 | 21487048.00 | ND |
| 2020-04-09 | 22005641.00 | ND |
| 2020-04-09 | 22005620.00 | ND |
| 2020-07-09 | 22591158.00 | ND |
| 2020-08-06 | 22780451.00 | ND |
| 2020-08-06 | 22780472.00 | ND |
| 2020-10-12 | 23166541.00 | ND |
| 2021-01-06 | 23695995.00 | ND |
| 2021-04-06 | 24231005.00 | ND |
| 2021-04-06 | 24230984.00 | ND |
| 2021-07-07 | 24812029.00 | ND |
| 2021-08-02 | 25004513.00 | ND |
| 2021-08-02 | 25004534.00 | ND |
| 2021-10-04 | 25387746.00 | ND |
| 2022-01-03 | 25926354.00 | ND |
| 2022-03-09 | 26272419.00 | ND |
| 2022-04-06 | 26447214.00 | ND |
| 2022-04-06 | 26447239.00 | ND |
| 2022-07-12 | 27020348.00 | ND |
| 2022-08-04 | 27216454.00 | ND |
| 2022-08-04 | 27216433.00 | ND |
| 2022-10-13 | 27625707.00 | ND |
| 2023-01-03 | 28156610.00 | ND |
| 2023-04-17 | 28684443.00 | ND |
| 2023-04-17 | 28684423.00 | ND |
| 2023-07-12 | 29285437.00 | ND |
| 2023-08-09 | 29478505.00 | ND |
| 2023-08-09 | 29478484.00 | ND |
| 2023-10-11 | 29870732.00 | ND |