1,1,1-Trichloroethane
E Greenville Borough Water Department
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 | 0.250 ppb | 2 | 1 | ND - 0.500 ppb |
| 2019 | 0.250 ppb | 2 | 1 | ND - 0.500 ppb |
| 2020 | 0.300 ppb | 2 | 1 | ND - 0.600 ppb |
| 2021 | 0.400 ppb | 2 | 1 | ND - 0.800 ppb |
| 2022 | ND | 2 | 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 |
|---|---|---|
| 2018-10-24 | 8028884-01 | ND |
| 2018-10-24 | 8028884-02 | 0.500 ppb |
| 2019-10-08 | 9034268-01 | ND |
| 2019-10-09 | 9034268-02 | 0.500 ppb |
| 2020-10-13 | 23181124.00 | ND |
| 2020-10-14 | 23181125.00 | 0.600 ppb |
| 2021-10-04 | 25403128.00 | ND |
| 2021-10-04 | 25403129.00 | 0.800 ppb |
| 2022-10-31 | 27640333.00 | ND |
| 2022-11-02 | 27640334.00 | ND |
| 2023-10-03 | 29699031.00 | ND |
| 2023-10-03 | 29699032.00 | ND |