1,1-Dichloroethylene
Arlington Water Department
NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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
NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.
| Date | Lab ID | Result |
|---|---|---|
| 2019-11-14 | ND | |
| 2019-11-14 | ND | |
| 2022-05-23 | 4286326 | ND |
| 2022-05-23 | 4286327 | ND |