1,1-Dichloroethylene
E Greenville Borough Water Department
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
12
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 | 0.850 ppb | 2 | 1 | ND - 1.70 ppb |
| 2019 | 1.05 ppb | 2 | 1 | ND - 2.10 ppb |
| 2020 | 1.35 ppb | 2 | 1 | ND - 2.70 ppb |
| 2021 | 1.55 ppb | 2 | 1 | ND - 3.10 ppb |
| 2022 | 1.000 ppb | 2 | 1 | ND - 2.00 ppb |
| 2023 | 0.950 ppb | 2 | 1 | ND - 1.90 ppb |
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 |
|---|---|---|
| 2018-10-24 | 8028884-01 | ND |
| 2018-10-24 | 8028884-02 | 1.70 ppb |
| 2019-10-08 | 9034268-01 | ND |
| 2019-10-09 | 9034268-02 | 2.10 ppb |
| 2020-10-13 | 23181118.00 | ND |
| 2020-10-14 | 23181119.00 | 2.70 ppb |
| 2021-10-04 | 25403122.00 | ND |
| 2021-10-04 | 25403123.00 | 3.10 ppb |
| 2022-10-31 | 27640327.00 | ND |
| 2022-11-02 | 27640328.00 | 2.00 ppb |
| 2023-10-03 | 29699025.00 | ND |
| 2023-10-03 | 29699026.00 | 1.90 ppb |