1,1,1-Trichloroethane
City Of South Shore 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.
12
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 |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-03-27 | 8033410-01 | ND |
| 2018-05-09 | 8051920-01 | ND |
| 2018-08-01 | 8110005-01 | ND |
| 2018-11-28 | 8110423-01 | ND |
| 2019-03-27 | 9030723-01 | ND |
| 2019-05-29 | 9050275-01 | ND |
| 2019-08-14 | 9080489-01 | ND |
| 2019-11-06 | 9110610-01 | ND |
| 2020-10-28 | 0100626-01 | ND |
| 2021-11-10 | 1101076-01RE1 | ND |
| 2022-11-02 | 2101004-01 | ND |
| 2023-07-12 | 3073438-01 | ND |