1,1,1-Trichloroethane
Sevier County Water Association
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.
13
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2018-05-21 | 18144005701 | ND |
| 2018-07-24 | 18207002001 | ND |
| 2019-04-29 | 19122009701 | ND |
| 2019-08-28 | 19241001401 | ND |
| 2020-05-26 | 20149002509 | ND |
| 2020-07-22 | 20204001801 | ND |
| 2020-08-17 | 20233006801 | ND |
| 2021-04-06 | 21098007201 | ND |
| 2021-08-02 | 21217000201 | ND |
| 2022-04-05 | O196358-VOC-1 | ND |
| 2022-07-05 | O199205-VOC-1 | ND |
| 2023-04-05 | O207333-VOC-1 | ND |
| 2023-07-03 | O210122-VOC-1 | ND |