1,1,1,2-Tetrachloroethane
City of Austin Water & Wastewater
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
20
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 | 6 | 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 |
|---|---|---|
| 2014-08-19 | AC64332 | ND |
| 2014-08-19 | AC64304 | ND |
| 2015-03-23 | AC85661 | ND |
| 2015-05-28 | AC93641 | ND |
| 2015-09-01 | AD05216 | ND |
| 2015-09-01 | AD05218 | ND |
| 2015-09-01 | AD05224 | ND |
| 2015-11-17 | AD13846 | ND |
| 2016-02-25 | AD25739 | ND |
| 2016-09-08 | AD48510 | ND |
| 2016-09-08 | AD48512 | ND |
| 2017-03-09 | AD74430 | ND |
| 2017-08-01 | AD91611 | ND |
| 2017-08-01 | AD91609 | ND |
| 2018-02-06 | AE12498 | ND |
| 2018-08-02 | AE35598 | ND |
| 2018-08-02 | AE35600 | ND |
| 2019-02-07 | AE53484 | ND |
| 2019-08-15 | AE78986 | ND |
| 2019-08-15 | AE78984 | ND |