1,1,1-Trichloroethane
Mount Vernon Water Works
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.
11
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-09-02 | 4090854-01 | ND |
| 2015-09-01 | 5090856-01 | ND |
| 2016-09-06 | 6091091-01 | ND |
| 2017-09-12 | 7090565-01 | ND |
| 2018-09-20 | 8092782-01 | ND |
| 2018-11-08 | 8110214-01 | ND |
| 2019-02-19 | 9020235-01 | ND |
| 2019-03-14 | 9032440-01 | ND |
| 2019-05-27 | 9051785-01 | ND |
| 2019-08-08 | 9081513-01 | ND |
| 2019-11-25 | 9111385-01 | ND |