1,1,1,2-Tetrachloroethane
Hughson, City Of
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
8
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-08-15 | CA5010008_005_005-201808151150 | ND |
| 2018-08-15 | CA5010008_014_014-201808150910 | ND |
| 2018-08-15 | CA5010008_003_003-201808151046 | ND |
| 2021-07-20 | CA5010008_003_003-202107200910 | ND |
| 2021-07-20 | CA5010008_005_005-202107200920 | ND |
| 2021-07-20 | CA5010008_014_014-202107201345 | ND |
| 2023-05-18 | CA5010008_016_016-202305181354 | ND |
| 2023-05-18 | CA5010008_017_017-202305181335 | ND |