1,1,1,2-Tetrachloroethane
City of Overton
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | 3 | 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 |
|---|---|---|
| 2018-03-13 | Q1810105002 | ND |
| 2018-03-13 | Q1810105003 | ND |
| 2018-06-11 | Q1823066006 | ND |
| 2019-04-15 | Q1914977001 | ND |
| 2019-04-15 | Q1914977004 | ND |
| 2020-05-14 | Q2019538003 | ND |
| 2020-05-14 | Q2019538005 | ND |
| 2021-05-03 | Q2111069004 | ND |
| 2021-10-21 | Q2129818002 | ND |
| 2022-06-27 | Q2217839002 | ND |
| 2022-06-27 | Q2217839004 | ND |
| 2023-05-25 | Q2319666002 | ND |
| 2023-05-25 | Q2319666004 | ND |