1,1,1,2-Tetrachloroethane
Sneedville Utility District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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 | Result |
|---|---|
| 2018-01-02 | ND |
| 2018-04-03 | ND |
| 2018-07-02 | ND |
| 2018-10-10 | ND |
| 2019-03-19 | ND |
| 2019-04-01 | ND |
| 2019-07-01 | ND |
| 2019-10-01 | ND |
| 2020-01-07 | ND |
| 2021-01-04 | ND |
| 2021-07-12 | ND |
| 2022-07-13 | ND |
| 2023-07-10 | ND |