1,1,1,2-Tetrachloroethane
S S WSC
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
21
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 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-03-26 | AC48344 | ND |
| 2014-09-08 | AC66064 | ND |
| 2015-01-15 | AC76454 | ND |
| 2015-01-15 | AC76450 | ND |
| 2015-01-15 | AC76452 | ND |
| 2015-01-15 | AC76448 | ND |
| 2016-01-21 | AD19289 | ND |
| 2016-01-21 | AD19283 | ND |
| 2016-01-21 | AD19297 | ND |
| 2016-01-21 | AD19295 | ND |
| 2017-05-10 | AD83658 | ND |
| 2017-05-10 | AD83656 | ND |
| 2017-05-10 | AD83648 | ND |
| 2017-05-10 | AD83650 | ND |
| 2018-07-02 | AE32233 | ND |
| 2018-07-02 | AE32229 | ND |
| 2018-07-02 | AE32231 | ND |
| 2019-03-28 | AE60472 | ND |
| 2019-03-28 | AE60474 | ND |
| 2019-03-28 | AE60480 | ND |
| 2019-03-28 | AE60478 | ND |