1,1,1,2-Tetrachloroethane
City Of Glen Rose
NOTE: City Of Glen Rose purchases water from Somervell County Water District - Wheele which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Somervell County Water District - Wheele.
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 6 | 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
NOTE: City Of Glen Rose purchases water from Somervell County Water District - Wheele which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Somervell County Water District - Wheele.
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-26 | Q1817130006 | ND |
| 2019-02-13 | Q1906633002 | ND |
| 2020-11-03 | Q2042995003 | ND |
| 2021-06-01 | Q2114024004 | ND |
| 2022-02-22 | Q2206240008 | ND |
| 2023-10-11 | Q2343452001 | ND |