1,1,2,2-Tetrachloroethane
City of Alamo Heights
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
28
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-04-27 | AC89591 | ND |
| 2015-04-27 | AC89585 | ND |
| 2015-04-27 | AC89593 | ND |
| 2015-04-27 | AC89587 | ND |
| 2015-04-27 | AC89595 | ND |
| 2016-03-15 | AD28830 | ND |
| 2016-03-15 | AD28838 | ND |
| 2016-03-15 | AD28804 | ND |
| 2016-03-15 | AD28810 | ND |
| 2016-03-15 | AD28808 | ND |
| 2017-04-10 | AD79194 | ND |
| 2017-04-10 | AD79192 | ND |
| 2017-04-10 | AD79188 | ND |
| 2017-04-10 | AD79204 | ND |
| 2017-04-10 | AD79190 | ND |
| 2018-01-10 | AE08651 | ND |
| 2018-01-10 | AE08653 | ND |
| 2018-01-10 | AE08663 | ND |
| 2018-01-10 | AE08665 | ND |
| 2018-01-10 | AE08659 | ND |
| 2018-04-09 | AE21698 | ND |
| 2018-08-03 | AE35854 | ND |
| 2018-10-12 | AE43450 | ND |
| 2019-03-01 | AE56929 | ND |
| 2019-03-27 | AE60220 | ND |
| 2019-03-27 | AE60232 | ND |
| 2019-03-27 | AE60222 | ND |
| 2019-03-27 | AE60258 | ND |