1,1,1,2-Tetrachloroethane
Sevier County Water Association
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-05-21 | 18144005701 | ND |
| 2018-07-24 | 18207002001 | ND |
| 2019-04-29 | 19122009701 | ND |
| 2019-08-28 | 19241001401 | ND |
| 2020-05-26 | 20149002509 | ND |
| 2020-07-22 | 20204001801 | ND |
| 2020-08-17 | 20233006801 | ND |
| 2021-04-06 | 21098007201 | ND |
| 2021-08-02 | 21217000201 | ND |
| 2022-04-05 | O196358-VOC-1 | ND |
| 2022-07-05 | O199205-VOC-1 | ND |