1,1-Dichloroethylene
Laurel Ridge
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
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 | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-10-31 | CB17096-01RE1 | ND |
| 2019-04-04 | CC05835-01 | ND |
| 2020-11-17 | CD19449-01 | ND |
| 2021-03-16 | CE04719-01 | ND |
| 2021-06-07 | CE09178-01 | ND |
| 2021-08-03 | CE11745-01 | ND |
| 2021-12-07 | CE19581-01 | ND |
| 2022-03-24 | CF04542-01 | ND |
| 2022-08-08 | CF12020-01 | ND |
| 2023-05-22 | 752-7542-1 | ND |