1,1,1-Trichloroethane
Colby Waterworks
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.
13
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 | 3 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-08-13 | 810326 | ND |
| 2014-08-13 | 810323 | ND |
| 2014-10-24 | 827642 | ND |
| 2015-08-25 | 878740 | ND |
| 2015-11-17 | 894440 | ND |
| 2016-03-08 | 909005 | ND |
| 2016-05-10 | 920384 | ND |
| 2016-09-20 | 946837 | ND |
| 2017-09-12 | 1017662 | ND |
| 2017-09-12 | 1017665 | ND |
| 2018-06-04 | 1058548 | ND |
| 2019-09-09 | 1146072 | ND |
| 2019-09-18 | 1149297 | ND |