1,1,1-Trichloroethane
Atascosa Rural WSC
1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.
17
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-12 | AC42474 | ND |
| 2014-03-27 | AC48533 | ND |
| 2015-02-05 | AC79470 | ND |
| 2015-02-05 | AC79472 | ND |
| 2016-02-16 | AD23635 | ND |
| 2016-02-16 | AD23667 | ND |
| 2017-01-12 | AD64790 | ND |
| 2017-01-12 | AD64758 | ND |
| 2017-08-09 | AD92562 | ND |
| 2017-10-06 | AD99826 | ND |
| 2018-01-18 | AE09253 | ND |
| 2018-01-18 | AE09255 | ND |
| 2018-01-18 | AE09251 | ND |
| 2018-04-06 | AE21722 | ND |
| 2019-01-11 | AE49573 | ND |
| 2019-01-11 | AE49569 | ND |
| 2019-01-11 | AE49571 | ND |