1,1,1,2-Tetrachloroethane
City of Refugio
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | 6 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-04-02 | AC49026 | ND |
| 2015-04-21 | AC89079 | ND |
| 2016-03-14 | AD28502 | ND |
| 2016-03-14 | AD28500 | ND |
| 2016-07-18 | AD44575 | ND |
| 2016-07-18 | AD44577 | ND |
| 2016-10-26 | AD54833 | ND |
| 2016-10-26 | AD54823 | ND |
| 2017-04-04 | AD78329 | ND |
| 2017-04-04 | AD78311 | ND |
| 2018-02-20 | AE14479 | ND |
| 2019-06-10 | AE69760 | ND |
| 2019-08-15 | AE78928 | ND |