1,1,1,2-Tetrachloroethane
CTWC - Naugatuck Region-Central System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 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 | Lab ID | Result |
|---|---|---|
| 2018-01-15 | BZ72858VOC1 | ND |
| 2018-02-13 | BZ88506VOC1 | ND |
| 2018-05-21 | CA50441VOC1 | ND |
| 2018-06-11 | CA67845VOC1 | ND |
| 2019-02-12 | VOC1 200521378 | ND |
| 2020-01-14 | VOC1 200563046 | ND |
| 2021-04-06 | VOC1 200611963 | ND |
| 2022-02-14 | CK66671 | ND |
| 2023-01-16 | CN24827 | ND |