1,1,1,2-Tetrachloroethane
City of Hemet
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-05-28 | 4790-025-1100 | ND |
| 2014-11-12 | 4790-034-1100 | ND |
| 2015-11-10 | 4790-024-0730 | ND |
| 2016-01-13 | 4790-010-0810 | ND |
| 2016-01-13 | 4790-012-1000 | ND |
| 2016-07-06 | 4790-025-1010 | ND |
| 2017-12-26 | 4790-034-0920 | ND |
| 2018-11-28 | 4790-024-0810 | ND |
| 2019-01-21 | 4790-012-0950 | ND |