1,1,1,2-Tetrachloroethane
Deforest Waterworks
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 12 | 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 |
|---|---|---|
| 2018-08-29 | 404007001 | ND |
| 2022-07-26 | 1326226 | ND |
| 2023-03-21 | 669283001 | ND |
| 2023-03-21 | 669282001 | ND |
| 2023-06-08 | 682745001 | ND |
| 2023-06-08 | 682743001 | ND |
| 2023-07-25 | 691015001 | ND |
| 2023-07-25 | 691015002 | ND |
| 2023-09-07 | 698953003 | ND |
| 2023-09-07 | 698953001 | ND |
| 2023-09-19 | 701205001 | ND |
| 2023-09-19 | 701208001 | ND |
| 2023-12-12 | 714406001 | ND |
| 2023-12-12 | 714406002 | ND |