1,1,1-Trichloroethane
Delaware City PWS
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 | 6 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-01-08 | 14-10197-07B | ND |
| 2014-04-22 | 14-14820-01 | ND |
| 2014-04-29 | 14-15064-01 | ND |
| 2014-05-06 | 14-15329-01 | ND |
| 2014-08-07 | 14-20328-01 | ND |
| 2014-08-07 | 14-20328-02 | ND |
| 2015-01-09 | 15-10315-05B | ND |
| 2016-01-12 | 16-10537-01B | ND |
| 2017-01-11 | 17-10616-02 | ND |
| 2018-01-09 | 18-10443-02B | ND |
| 2019-01-08 | 19-10475-01B | ND |