1,1,1-Trichloroethane
Alameda County Water District
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 | 5 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-05-27 | 9590-015-1020 | ND |
2014-07-21 | 9590-041-0955 | ND |
2014-07-21 | 9590-038-0955 | ND |
2014-07-22 | 9590-053-0905 | ND |
2014-07-22 | 9590-040-0925 | ND |
2015-07-06 | 9590-038-1000 | ND |
2015-07-06 | 9590-040-1105 | ND |
2015-07-06 | 9590-041-0921 | ND |
2015-07-21 | 9590-053-0905 | ND |
2016-07-21 | 9590-038-0915 | ND |
2016-07-21 | 9590-053-0940 | ND |
2016-07-21 | 9590-041-0905 | ND |
2016-07-21 | 9590-040-0825 | ND |
2017-07-17 | 9590-041-1005 | ND |
2017-07-17 | 9590-038-1030 | ND |
2017-07-25 | 9590-053-1032 | ND |
2017-07-25 | 9590-040-0915 | ND |
2018-07-11 | 9590-041-0755 | ND |
2018-07-11 | 9590-038-0726 | ND |
2018-07-17 | 9590-040-0850 | ND |
2018-07-17 | 9590-053-0845 | ND |
2019-04-16 | 9590-038-0800 | ND |
2019-04-23 | 9590-053-0745 | ND |
2019-04-30 | 9590-041-0905 | ND |
2019-06-04 | 9590-040-0815 | ND |