1,1,1,2-Tetrachloroethane
Hills & Dales
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-10-31 | AE45068 | ND |
| 2018-10-31 | AE45070 | ND |
| 2019-12-17 | AE92707 | ND |
| 2019-12-17 | AE92709 | ND |
| 2020-12-02 | AF36275 | ND |
| 2020-12-02 | AF36283 | ND |
| 2021-05-18 | AF54403 | ND |
| 2021-05-18 | AF54405 | ND |
| 2021-09-07 | AF68995 | ND |
| 2021-11-15 | AF76649 | ND |
| 2022-12-20 | AG22372 | ND |
| 2023-10-25 | AG61061 | ND |
| 2023-10-25 | AG61063 | ND |