1,1,1,2-Tetrachloroethane
Rayburn Country Municipal Utility District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
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 | ND | 2 | 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
EWG Health Guideline: 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-12 | AE29516 | ND |
| 2018-06-12 | AE29518 | ND |
| 2019-02-19 | AE54862 | ND |
| 2019-02-19 | AE54890 | ND |
| 2020-07-23 | AF20476 | ND |
| 2020-07-23 | AF20478 | ND |
| 2021-01-13 | AF39180 | ND |
| 2021-01-13 | AF39182 | ND |
| 2022-03-29 | AF90979 | ND |
| 2022-03-29 | AF90983 | ND |
| 2023-02-16 | AG29341 | ND |
| 2023-02-16 | AG29343 | ND |