1,1,1-Trichloroethane
City of Ukiah
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 | 1 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 3 | 0 | ND |
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 |
---|---|---|
2014-07-08 | 9590-028-1400 | ND |
2015-07-22 | 9590-004-1154 | ND |
2015-07-22 | 9590-029-1239 | ND |
2016-07-29 | 1610-032-1345 | ND |
2016-09-13 | 1610-033-1110 | ND |
2017-07-27 | 1610-004-1111 | ND |
2017-07-27 | 1610-028-1435 | ND |
2017-07-27 | 1610-029-1420 | ND |