1,1,1-Trichloroethane
Aqua Pa West Chester
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.
18
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 | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-01-29 | AF74444 | ND |
| 2018-02-22 | AF77012 | ND |
| 2018-03-22 | AF78070 | ND |
| 2019-03-06 | AG10280 | ND |
| 2019-03-06 | AG10262 | ND |
| 2019-03-06 | AG10272 | ND |
| 2019-03-07 | AG10725 | ND |
| 2020-03-10 | 21839026.00 | ND |
| 2020-03-11 | 21839005.00 | ND |
| 2020-04-02 | 22014461.00 | ND |
| 2021-02-10 | 23881864.00 | ND |
| 2021-02-10 | 23881885.00 | ND |
| 2021-02-10 | 23881906.00 | ND |
| 2022-01-28 | 25934696.00 | ND |
| 2022-02-24 | 26110784.00 | ND |
| 2022-03-28 | 26280761.00 | ND |
| 2023-03-23 | 28514073.00 | ND |
| 2023-03-28 | 28514094.00 | ND |