1,1,1,2-Tetrachloroethane
UC - Davis
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 | 7 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 6 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-25 | 5810-026-1050 | ND |
| 2014-05-20 | 5810-026-0650 | ND |
| 2014-09-04 | 5810-001-0742 | ND |
| 2014-09-04 | 5810-002-0929 | ND |
| 2014-09-04 | 5810-004-0953 | ND |
| 2014-09-04 | 5810-015-1305 | ND |
| 2014-09-04 | 5810-026-0850 | ND |
| 2015-02-19 | 5810-014-1030 | ND |
| 2015-03-24 | 5810-026-0900 | ND |
| 2017-09-27 | 5810-001-1040 | ND |
| 2017-09-27 | 5810-002-1225 | ND |
| 2017-09-27 | 5810-004-1020 | ND |
| 2017-09-27 | 5810-014-1205 | ND |
| 2017-09-27 | 5810-015-0940 | ND |
| 2017-09-27 | 5810-026-1005 | ND |