1,1-Dichloroethylene
Gracemont Public Works Authority
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 | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-01-10 | SDWA-1228032-00 | ND |
| 2018-04-05 | SDWA-1251701-00 | ND |
| 2018-07-09 | SDWA-1280205-00 | ND |
| 2018-10-12 | SDWA-1313584-00 | ND |
| 2019-02-15 | SDWA-1350470-00 | ND |
| 2020-02-04 | SDWA-1456782-00 | ND |
| 2021-03-25 | SDWA-1554029-00 | ND |
| 2023-02-10 | SDWA-1662230-00 | ND |
| 2023-02-10 | SDWA-1766689-00 | ND |
| 2023-02-10 | SDWA-1766696-00 | ND |