1,1,1,2-Tetrachloroethane
Coachella Valley Water District: I.d. No. 8
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
6
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-05-14 | CA3310048_007_007-201905141030 | ND |
| 2019-05-15 | CA3310048_004_004-201905150800 | ND |
| 2021-11-10 | CA3310048_014_014-202111100825 | ND |
| 2022-01-06 | CA3310048_004_004-202201060940 | ND |
| 2022-02-01 | CA3310048_014_014-202202010740 | ND |
| 2022-02-16 | CA3310048_007_007-202202160735 | ND |