1,1,1-Trichloroethane
Pennsylvania American Water Company Butler
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-03-12 | 38836501 | ND |
| 2019-03-05 | 43248101 | ND |
| 2020-03-09 | 21939746.00 | ND |
| 2021-03-01 | 24158502.00 | ND |
| 2022-03-07 | 26380897.00 | ND |
| 2023-03-07 | 28618857.00 | ND |
| 2023-03-14 | 28618946.00 | ND |
| 2023-03-27 | 28618967.00 | ND |
| 2023-04-10 | 28809066.00 | ND |
| 2023-04-25 | 28809087.00 | ND |
| 2023-05-09 | 29010738.00 | ND |