1,1,1-Trichloroethane
City of Willis
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.
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
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 |
|---|---|---|
| 2014-01-22 | AC39831 | ND |
| 2015-07-20 | AD00177 | ND |
| 2015-07-20 | AD00179 | ND |
| 2015-10-07 | AD09803 | ND |
| 2016-05-10 | AD36139 | ND |
| 2016-05-10 | AD36111 | ND |
| 2016-05-10 | AD36113 | ND |
| 2017-02-28 | AD72494 | ND |
| 2017-02-28 | AD72450 | ND |
| 2017-02-28 | AD72480 | ND |
| 2018-03-20 | AE19046 | ND |
| 2018-03-20 | AE19084 | ND |
| 2018-07-05 | AE32438 | ND |
| 2019-05-09 | AE65699 | ND |
| 2019-05-09 | AE65701 | ND |
| 2019-05-09 | AE65703 | ND |