1,1,1,2-Tetrachloroethane
City of Alto
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 | 2 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2018-05-29 | Q1821302006 | ND |
| 2018-12-11 | Q1850897004 | ND |
| 2019-03-20 | Q1911720002 | ND |
| 2019-03-29 | Q1912916002 | ND |
| 2019-05-20 | Q1927027002 | ND |
| 2020-10-22 | Q2041198001 | ND |
| 2020-10-22 | Q2041198003 | ND |
| 2021-10-14 | Q2128845006 | ND |
| 2021-10-14 | Q2128845008 | ND |
| 2022-03-03 | Q2207391003 | ND |
| 2022-03-03 | Q2207391005 | ND |
| 2023-04-20 | Q2314880004 | ND |
| 2023-04-20 | Q2314880006 | ND |