1,1,1,2-Tetrachloroethane
Fort Bend County MUD 25
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-05-16 | AC54455 | ND |
| 2015-02-04 | AC79293 | ND |
| 2015-02-04 | AC79295 | ND |
| 2015-02-04 | AC79265 | ND |
| 2015-02-04 | AC79289 | ND |
| 2015-06-02 | AC94168 | ND |
| 2016-01-19 | AD18648 | ND |
| 2016-01-19 | AD18642 | ND |
| 2016-01-19 | AD18622 | ND |
| 2016-06-21 | AD41365 | ND |
| 2016-08-02 | AD46709 | ND |
| 2017-01-12 | AD64770 | ND |
| 2017-01-12 | AD64784 | ND |
| 2017-01-12 | AD64774 | ND |
| 2018-02-12 | AE13292 | ND |
| 2018-02-12 | AE13290 | ND |
| 2018-02-12 | AE13294 | ND |
| 2018-02-12 | AE13288 | ND |
| 2019-01-17 | AE50416 | ND |
| 2019-01-17 | AE50420 | ND |
| 2019-01-17 | AE50410 | ND |