1,1,1,2-Tetrachloroethane
Dallas Water Utility
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-07-03 | Q1425969002 | ND |
| 2014-09-10 | Q1442990003 | ND |
| 2014-09-10 | Q1442990002 | ND |
| 2015-07-08 | Q1526377021 | ND |
| 2015-07-08 | Q1526377019 | ND |
| 2015-07-08 | Q1526377022 | ND |
| 2016-07-07 | Q1627338001 | ND |
| 2016-09-14 | Q1637473001 | ND |
| 2016-09-14 | Q1637473004 | ND |
| 2017-07-10 | Q1727819009 | ND |
| 2017-07-10 | Q1727819018 | ND |
| 2017-08-23 | Q1737870004 | ND |
| 2018-07-17 | Q1828182010 | ND |
| 2018-08-07 | Q1831263004 | ND |
| 2018-08-07 | Q1831263001 | ND |
| 2019-07-08 | Q1942567001 | ND |
| 2019-07-16 | Q1945074005 | ND |
| 2019-07-16 | Q1945074007 | ND |