1,1,1,2-Tetrachloroethane
Aquarion Water Company of Connecticut - Greenwich System
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 | 1 | 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 |
|---|---|---|
| 2018-04-02 | 201803873-VOC1 | ND |
| 2019-04-01 | 201904114-VOC1 | ND |
| 2019-04-01 | 201904109-VOC1 | ND |
| 2020-04-06 | 202004726-VOC1 | ND |
| 2020-04-07 | 202004860-VOC1 | ND |
| 2021-04-05 | 202104315-VOC1 | ND |
| 2021-05-10 | 202106584-VOC1 | ND |
| 2022-04-05 | 202204953-VOC1 | ND |
| 2022-05-16 | 202207710-VOC1 | ND |
| 2023-04-03 | 202304838-VOC1 | ND |
| 2023-06-06 | 202309335-VOC1 | ND |