1,1,1-Trichloroethane
Pittsburgh Water & Sewer Authority
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-01-27 | 1069532001 | ND |
| 2014-01-27 | 1069532002 | ND |
| 2014-08-28 | 2026581002 | ND |
| 2014-08-29 | 2026581001 | ND |
| 2015-12-07 | 13692564 | ND |
| 2015-12-07 | 13692585 | ND |
| 2016-11-16 | 15296027 | ND |
| 2016-11-16 | 15296048 | ND |
| 2017-05-25 | 16174959 | ND |
| 2018-05-02 | 18E0265-01 | ND |
| 2019-05-21 | 19E2494-01 | ND |
| 2019-12-13 | 19L1687-01 | ND |