1,1-Dichloroethylene
Royal Senter Ridge S/d
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
16
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 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 |
|---|---|---|
| 2019-04-15 | CC04309-01 | ND |
| 2020-04-08 | CD03202-01 | ND |
| 2020-04-08 | CD03203-01 | ND |
| 2020-07-31 | CD08354-01 | ND |
| 2020-10-14 | CD13756-01 | ND |
| 2021-02-09 | CD18755-01 | ND |
| 2021-04-28 | CE02840-01 | ND |
| 2021-08-06 | CE07619-01 | ND |
| 2021-08-11 | CE07487-01 | ND |
| 2022-04-20 | CF02449-01 | ND |
| 2022-08-12 | CF07158-01 | ND |
| 2022-08-18 | CF07159-01 | ND |
| 2022-10-12 | CF12774-01 | ND |
| 2023-01-11 | 752-1065-1 | ND |
| 2023-04-19 | 37729_23-19622 | ND |
| 2023-08-16 | 37729_23-45652 | ND |