1,1,1-Trichloroethane
Mountain Home 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.
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-03-11 | 14072006502 | ND |
| 2015-02-24 | 15057000309 | ND |
| 2016-01-26 | 16029002302 | ND |
| 2017-01-23 | 17026000501 | ND |
| 2017-04-04 | 17095001102 | ND |
| 2017-07-04 | 17187008501 | ND |
| 2017-10-03 | 17278012701 | ND |
| 2018-01-09 | 18010003109 | ND |
| 2018-04-03 | 18094001809 | ND |
| 2018-07-02 | 18186010201 | ND |
| 2019-01-09 | 19010011302 | ND |