1,1-Dichloroethylene
Perkasie Regional Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
41
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 | 7 | 0 | ND |
| 2019 | ND | 7 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 7 | 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 |
|---|---|---|
| 2018-03-06 | 8024485-02 | ND |
| 2018-06-04 | 8052857-02 | ND |
| 2018-09-04 | 8084662-02 | ND |
| 2018-09-17 | 8093548-01 | ND |
| 2018-09-17 | 8093548-03 | ND |
| 2018-09-17 | 8093548-02 | ND |
| 2018-12-03 | 8110453-02RE | ND |
| 2019-03-05 | 9023322-02 | ND |
| 2019-06-04 | 9053891-02 | ND |
| 2019-09-03 | 9084135-02 | ND |
| 2019-11-11 | 9111441-02 | ND |
| 2019-11-11 | 9111441-03 | ND |
| 2019-11-11 | 9111441-01 | ND |
| 2019-12-03 | 9113323-02 | ND |
| 2020-03-03 | 21828162.00 | ND |
| 2020-06-23 | 22393765.00 | ND |
| 2020-09-01 | 22778499.00 | ND |
| 2020-09-01 | 22778457.00 | ND |
| 2020-09-01 | 22778478.00 | ND |
| 2020-12-01 | 23344557.00 | ND |
| 2021-03-02 | 24041339.00 | ND |
| 2021-06-01 | 24619519.00 | ND |
| 2021-09-20 | 25201403.00 | ND |
| 2021-09-20 | 25201445.00 | ND |
| 2021-09-20 | 25201424.00 | ND |
| 2021-09-20 | 25201466.00 | ND |
| 2021-12-07 | 25746108.00 | ND |
| 2022-03-01 | 26270337.00 | ND |
| 2022-06-21 | 26824209.00 | ND |
| 2022-08-16 | 27213701.00 | ND |
| 2022-08-16 | 27213749.00 | ND |
| 2022-08-16 | 27213726.00 | ND |
| 2022-09-19 | 27420628.00 | ND |
| 2022-12-06 | 27980840.00 | ND |
| 2023-03-07 | 28503190.00 | ND |
| 2023-06-06 | 29088299.00 | ND |
| 2023-09-05 | 29681635.00 | ND |
| 2023-09-19 | 29681638.00 | ND |
| 2023-09-19 | 29681637.00 | ND |
| 2023-09-19 | 29681636.00 | ND |
| 2023-12-05 | 30228258.00 | ND |