1,1,1,2-Tetrachloroethane
City of Troy
NOTE: City of Troy purchases water from City of Temple which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Temple.
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Samples
Samples exceeding legal limit (MCL)
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 | 1 | 0 | ND |
| 2022 | ND | 2 | 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
NOTE: City of Troy purchases water from City of Temple which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Temple.
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-10 | AE36484 | ND |
| 2019-07-23 | AE75563 | ND |
| 2020-07-14 | AF19237 | ND |
| 2021-07-08 | AF61076 | ND |
| 2022-07-13 | AG04530 | ND |
| 2023-07-06 | AG47322 | ND |