1,1,1,2-Tetrachloroethane
Connecticut Water Company - Hebron Center Division
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
14
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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-04-09 | CA16134VOC1 | ND |
| 2019-02-11 | VOC1 200521212 | ND |
| 2020-09-21 | VOC1 200591010 | ND |
| 2021-08-31 | 300048791 300048800 | ND |
| 2021-10-25 | V300088205 300088206 | ND |
| 2022-01-13 | CK16254 | ND |
| 2022-04-21 | CL13693 | ND |
| 2022-07-07 | CL72297 | ND |
| 2022-10-18 | CM65668 | ND |
| 2023-01-12 | CN22972 | ND |
| 2023-04-17 | CN85298 | ND |
| 2023-08-15 | CO75345 | ND |
| 2023-10-17 | CP28039 | ND |
| 2023-10-24 | CP33075 | ND |