1,1,1-Trichloroethane
Collierville 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.
22
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 8 | 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 | Result |
|---|---|
| 2019-04-15 | ND |
| 2019-04-15 | ND |
| 2021-03-18 | ND |
| 2021-03-18 | ND |
| 2021-03-18 | ND |
| 2022-04-20 | ND |
| 2022-04-20 | ND |
| 2022-08-11 | ND |
| 2022-08-11 | ND |
| 2022-08-11 | ND |
| 2022-10-19 | ND |
| 2022-10-19 | ND |
| 2022-10-19 | ND |
| 2022-10-19 | ND |
| 2023-09-13 | ND |
| 2023-09-13 | ND |
| 2023-09-13 | ND |
| 2023-09-13 | ND |
| 2023-10-17 | ND |
| 2023-10-17 | ND |
| 2023-12-11 | ND |
| 2023-12-11 | ND |