1,1,1-Trichloroethane
City of Hewitt
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.
12
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 |
|---|---|---|---|---|
| 2012 | ND | 1 | 0 | ND |
| 2013 | ND | 1 | 0 | ND |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | 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 |
|---|---|---|
| 2012-01-12 | AB77664 | ND |
| 2013-02-12 | 1302396002 | ND |
| 2014-01-14 | AC38665 | ND |
| 2015-03-23 | AC85649 | ND |
| 2015-03-23 | AC85645 | ND |
| 2015-03-23 | AC85655 | ND |
| 2016-01-20 | AD19012 | ND |
| 2016-01-20 | AD19002 | ND |
| 2016-04-06 | AD32129 | ND |
| 2017-04-03 | AD78087 | ND |
| 2017-10-09 | AD99814 | ND |
| 2017-10-31 | AE03236 | ND |