1,1,1,2-Tetrachloroethane
Antelope Valley - East Kern Water Agency
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
15
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 |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-09-10 | 9588-015-1016 | ND |
| 2014-12-03 | 9588-015-0954 | ND |
| 2015-05-13 | 9590-015-1040 | ND |
| 2017-05-10 | 9590-015-1116 | ND |
| 2018-02-28 | 9590-019-0928 | ND |
| 2018-03-14 | 9590-020-0640 | ND |
| 2018-03-21 | 9590-023-0830 | ND |
| 2018-05-23 | 9590-019-0947 | ND |
| 2018-06-20 | 9590-023-1023 | ND |
| 2018-06-20 | 9590-024-0811 | ND |
| 2018-08-08 | 9590-019-1055 | ND |
| 2019-02-13 | 9590-017-1033 | ND |
| 2019-02-13 | 9590-018-1122 | ND |
| 2019-03-13 | 9590-020-0903 | ND |
| 2019-08-14 | 9590-019-1045 | ND |