1,1-Dichloroethylene
Walking Horse Ranch Estates
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
12
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2022-09-16 | V202209049001 | ND |
| 2022-09-16 | V202209049002 | ND |
| 2022-09-16 | V202209049003 | ND |
| 2022-12-07 | V202212013501 | ND |
| 2022-12-07 | V202212013502 | ND |
| 2022-12-07 | V202212013503 | ND |
| 2023-03-14 | V202303020201 | ND |
| 2023-03-14 | V220230320202 | ND |
| 2023-03-14 | V202303020203 | ND |
| 2023-06-18 | V202306041202 | ND |
| 2023-06-18 | V202306041203 | ND |
| 2023-06-18 | V2023060412 | ND |