1,1,1-Trichloroethane
Suffolk County Water 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.0381 ppb | 1 | 1 | 0.0381 ppb |
2015 | 0.0170 ppb | 1 | 1 | 0.0170 ppb |
2016 | 0.0515 ppb | 1 | 1 | 0.0515 ppb |
2017 | 0.0393 ppb | 1 | 1 | 0.0393 ppb |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-06-01 | 0.0381 ppb* | |
2015-06-01 | 0.0170 ppb* | |
2016-06-01 | 0.0515 ppb* | |
2017-06-01 | 0.0393 ppb* |
* Sample result is taken from the system's CCR report.