1,1,1-Trichloroethane
City of San Clemente
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.
11
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-03-12 | 1805-021-0925 | ND |
| 2014-04-09 | 1805-004-1010 | ND |
| 2015-03-11 | 1805-021-1105 | ND |
| 2016-03-11 | 1805-021-1045 | ND |
| 2016-05-17 | 1805-004-1040 | ND |
| 2017-03-08 | 1805-021-1120 | ND |
| 2017-05-01 | 1805-004-0000 | ND |
| 2018-03-07 | 1805-021-0845 | ND |
| 2018-05-08 | 1805-004-0955 | ND |
| 2019-01-08 | 1805-021-1103 | ND |
| 2019-05-08 | 1805-004-0935 | ND |