1,1-Dichloroethylene
Washington Ridge C.c.
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
11
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 3 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-06 | CA2910013_005_005-201806061000 | ND |
| 2018-07-18 | CA2910013_005_005-201807180930 | ND |
| 2018-11-27 | CA2910013_005_005-201811271000 | ND |
| 2019-03-27 | CA2910013_003_003-201903270845 | ND |
| 2019-03-27 | CA2910013_002_002-201903270830 | ND |
| 2019-03-27 | CA2910013_005_005-201903270900 | ND |
| 2020-06-16 | CA2910013_005_005-202006161330 | ND |
| 2021-06-24 | CA2910013_005_005-202106240915 | ND |
| 2022-03-08 | CA2910013_002_002-202203081033 | ND |
| 2022-03-08 | CA2910013_005_005-202203081138 | ND |
| 2022-03-08 | CA2910013_003_003-202203081111 | ND |