1,1,1-Trichloroethane
Georgetown
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 |
---|---|---|---|---|
2014 | 0.960 ppb | 1 | 1 | 0.960 ppb |
2015 | 0.960 ppb | 1 | 1 | 0.960 ppb |
2016 | ND | 1 | 0 | ND |
2017 | 0.920 ppb | 1 | 1 | 0.920 ppb |
2018 | 0.660 ppb | 1 | 1 | 0.660 ppb |
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 |
---|---|---|
2014-10-29 | 4104431-01 | 0.960 ppb |
2015-11-03 | 5111155-01 | 0.960 ppb |
2016-11-08 | 6111844-01 | ND |
2017-10-18 | 7103739-01 | 0.920 ppb |
2018-11-14 | 8112966-01 | 0.660 ppb |
2019-11-12 | 9112136-01 | ND |