1,1,1-Trichloroethane
City of San Juan Capistrano
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.
10
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 | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-12-23 | 9590-010-1508 | ND |
| 2015-02-10 | 9590-010-1111 | ND |
| 2015-05-19 | 9590-010-0808 | ND |
| 2015-08-24 | 9590-010-0911 | ND |
| 2016-02-29 | 9590-010-0809 | ND |
| 2017-02-08 | 9590-010-0815 | ND |
| 2018-06-13 | 9590-010-1322 | ND |
| 2019-03-27 | 4792-010-0715 | ND |
| 2019-07-08 | 4792-010-1215 | ND |
| 2019-10-15 | 4792-010-1230 | ND |