1,1,1,2-Tetrachloroethane
Daphne
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
19
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-01-13 | 140114012-1 | ND |
| 2014-01-13 | 140114012-2 | ND |
| 2016-01-13 | 160114026-3 | ND |
| 2016-01-13 | 160114026-1 | ND |
| 2016-01-13 | 160114026-2 | ND |
| 2016-04-13 | 160414036-1 | ND |
| 2016-04-13 | 160414036-2 | ND |
| 2017-01-12 | 170113027-1 | ND |
| 2017-01-12 | 170113027-2 | ND |
| 2018-09-25 | 18090667-001A | ND |
| 2018-11-05 | 18110119-001A | ND |
| 2019-01-16 | 19010491-003A | ND |
| 2019-01-16 | 19010491-002A | ND |
| 2019-01-16 | 19010491-001A | ND |
| 2019-04-08 | 19040336-001A | ND |
| 2019-06-13 | 20108286001_IVOC | ND |
| 2019-06-13 | 20108286002_IVOC | ND |
| 2019-09-12 | 20121497001_IVOC | ND |
| 2019-10-14 | 20126106001_IVOC | ND |