1,1,1,2-Tetrachloroethane
Bastrop County Water Control and Improvement District 2
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
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 | 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 |
|---|---|---|
| 2014-05-01 | AC52619 | ND |
| 2015-02-02 | AC78811 | ND |
| 2015-02-02 | AC78805 | ND |
| 2015-02-02 | AC78817 | ND |
| 2016-02-04 | AD22187 | ND |
| 2016-02-04 | AD22189 | ND |
| 2016-02-04 | AD22183 | ND |
| 2017-01-10 | AD63978 | ND |
| 2017-01-10 | AD63986 | ND |
| 2017-01-10 | AD63980 | ND |
| 2018-04-11 | AE22095 | ND |
| 2018-04-11 | AE22079 | ND |
| 2018-04-11 | AE22083 | ND |
| 2019-01-16 | AE50158 | ND |
| 2019-01-16 | AE50152 | ND |
| 2019-01-16 | AE50156 | ND |