1,1,1-Trichloroethane
Painted Post Village
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.
6
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 | 0.500 ppb | 1 | 1 | 0.500 ppb |
| 2015 | 0.600 ppb | 1 | 1 | 0.600 ppb |
| 2016 | 0.500 ppb | 1 | 1 | 0.500 ppb |
| 2017 | ND | 1 | 0 | ND |
| 2018 | 0.500 ppb | 1 | 1 | 0.500 ppb |
| 2019 | 0.500 ppb | 1 | 1 | 0.500 ppb |
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 | POC-1400008352-0 | 0.500 ppb |
| 2015-02-24 | POC-EHS150000599 | 0.600 ppb |
| 2016-12-13 | POC56608-SR-2-12 | 0.500 ppb |
| 2017-08-10 | POCH1055-03-08/1 | ND |
| 2018-04-10 | 15080-SR-2POCS | 0.500 ppb |
| 2019-07-02 | 1900033704-SR-1P | 0.500 ppb |