1,1,1-Trichloroethane
Boston Harbor
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.
19
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 12 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 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 |
|---|---|---|
| 2015-04-01 | 15863 | ND |
| 2015-04-01 | 15863 | ND |
| 2015-04-01 | 15863 | ND |
| 2015-05-04 | 16373 | ND |
| 2015-05-04 | 16372 | ND |
| 2015-09-17 | 18579 | ND |
| 2015-09-17 | 18578 | ND |
| 2015-10-29 | 19346 | ND |
| 2015-10-29 | 19346 | ND |
| 2015-10-29 | 19347 | ND |
| 2015-10-29 | 19347 | ND |
| 2015-12-11 | 20103 | ND |
| 2016-03-08 | ND | |
| 2017-03-22 | ND | |
| 2018-05-31 | ND | |
| 2018-05-31 | ND | |
| 2018-09-24 | ND | |
| 2018-11-15 | ND | |
| 2018-12-11 | ND |