1,1,1-Trichloroethane
City of Concord
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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-01-15 | 8221-011514-EP1V | ND |
2014-01-15 | 8221-011514-EP2V | ND |
2015-01-14 | ND | |
2015-01-14 | ND | |
2016-01-26 | 3391022 | ND |
2016-01-26 | 3391002 | ND |
2017-01-23 | 3625435 | ND |
2017-01-23 | 3625440 | ND |
2018-01-30 | 3861468 | ND |
2018-01-30 | 3861484 | ND |
2019-02-04 | 4187564 | ND |
2019-02-04 | 4187620 | ND |