1,1-Dichloroethylene
Umh Arbor Estates
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
6
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 | 1.000 ppb | 1 | 1 | 1.000 ppb |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | 0.800 ppb | 1 | 1 | 0.800 ppb |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-04-02 | 8009162-01 | 1.000 ppb |
| 2019-05-13 | 9016459-01 | ND |
| 2020-05-04 | 22194279.00 | ND |
| 2021-05-03 | 24417863.00 | 0.800 ppb |
| 2022-05-02 | 26628132.00 | ND |
| 2023-12-04 | 30227195.00 | ND |