1,1,1-Trichloroethane
Bristol County Water Authority
NOTE: Bristol County Water Authority purchases water from City of Providence which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Providence.
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 | ND | 4 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 3 | 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
NOTE: Bristol County Water Authority purchases water from City of Providence which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Providence.
Date | Lab ID | Result |
---|---|---|
2014-01-21 | 1401191-01_TO12 | ND |
2015-02-18 | 1501351-01_TO12 | ND |
2016-03-24 | 1601603-01_TO12 | ND |
2017-01-31 | 1701086-01_TO12 | ND |
2018-02-06 | 1801079-01_TO12 | ND |
2019-02-05 | 1901020-01_TO12 | ND |