1,1-Dichloroethylene
City of Justin
NOTE: City of Justin purchases water from Utrwd Regional Water Treatment Plant which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.
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 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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
NOTE: City of Justin purchases water from Utrwd Regional Water Treatment Plant which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-13 | Q1836570001 | ND |
| 2018-09-25 | Q1838256005 | ND |
| 2019-09-26 | Q1969362002 | ND |
| 2019-09-27 | Q1970279005 | ND |
| 2020-08-18 | Q2032859002 | ND |
| 2020-08-18 | Q2032859004 | ND |
| 2021-09-27 | Q2126305003 | ND |
| 2021-09-27 | Q2126305005 | ND |
| 2022-09-15 | Q2227673003 | ND |
| 2022-09-15 | Q2227673005 | ND |
| 2023-08-02 | Q2331445001 | ND |
| 2023-08-02 | Q2331445003 | ND |