1,1,1,2-Tetrachloroethane
Bluebonnet Water Supply Corporation
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 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 |
|---|---|---|
| 2014-07-29 | AC61244 | ND |
| 2015-09-01 | AD05212 | ND |
| 2016-03-15 | AD28848 | ND |
| 2016-05-18 | AD37312 | ND |
| 2016-09-09 | AD48642 | ND |
| 2016-11-09 | AD57452 | ND |
| 2017-10-10 | AE00149 | ND |
| 2018-05-10 | AE25953 | ND |
| 2019-05-22 | AE67683 | ND |