1,1,1,2-Tetrachloroethane
Pecan Grove
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 | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-08-06 | AE35848 | ND |
| 2018-08-06 | AE35852 | ND |
| 2019-01-10 | AE49327 | ND |
| 2019-01-10 | AE49335 | ND |
| 2020-11-10 | AF34089 | ND |
| 2021-03-08 | AF45734 | ND |
| 2022-09-08 | AG12187 | ND |
| 2022-10-24 | AG18072 | ND |
| 2022-12-06 | AG20899 | ND |
| 2023-01-10 | AG23737 | ND |
| 2023-01-10 | AG23745 | ND |
| 2023-05-31 | AG42572 | ND |