1,1,1,2-Tetrachloroethane
City of Big Sandy
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
12
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-08-30 | Q1834898002 | ND |
| 2018-08-30 | Q1834898003 | ND |
| 2019-10-10 | Q1972217003 | ND |
| 2019-10-10 | Q1972217005 | ND |
| 2020-06-22 | Q2024983006 | ND |
| 2020-06-22 | Q2024983008 | ND |
| 2021-07-14 | Q2118474002 | ND |
| 2021-07-14 | Q2118474004 | ND |
| 2022-07-25 | Q2220981003 | ND |
| 2022-07-25 | Q2220981005 | ND |
| 2023-07-13 | Q2327537004 | ND |
| 2023-10-03 | Q2342306007 | ND |