1,1-Dichloroethylene
Tallulah Water System
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 | ND | 8 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-10-22 | 35426078002 | ND |
| 2018-10-22 | 35426078003 | ND |
| 2018-10-22 | 35426078004 | ND |
| 2018-10-22 | 35426078005 | ND |
| 2018-10-22 | 35426078002 | ND |
| 2018-10-22 | 35426078003 | ND |
| 2018-10-22 | 35426078004 | ND |
| 2018-10-22 | 35426078005 | ND |
| 2021-11-01 | 35674847001 | ND |
| 2021-11-01 | 35674847002 | ND |
| 2021-11-01 | 35674847003 | ND |
| 2021-11-01 | 35674847004 | ND |
| 2023-03-17 | 35787887002 | ND |
| 2023-04-17 | 35794067001 | ND |
| 2023-07-17 | 35814095001 | ND |
| 2023-10-02 | 35831872001 | ND |