1,1,1-Trichloroethane
City of Troutdale
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.
14
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 7 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 7 | 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 |
|---|---|---|
| 2014-07-23 | 40724161-V | ND |
| 2014-07-23 | 40724162-V | ND |
| 2014-07-23 | 40724163-V | ND |
| 2014-07-23 | 40724165-V | ND |
| 2014-07-23 | 40724166-V | ND |
| 2014-07-23 | 40724167-V | ND |
| 2014-07-23 | 40724164-V | ND |
| 2017-08-09 | 70809251-V | ND |
| 2017-08-09 | 70809252-V | ND |
| 2017-08-09 | 70809253-V | ND |
| 2017-08-09 | 70809256-V | ND |
| 2017-08-09 | 70809257-V | ND |
| 2017-08-09 | 70809258-V | ND |
| 2017-08-09 | 70809255-V | ND |