1,1,1-Trichloroethane
Gracemont Public Works Authority
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.
10
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 | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-01-10 | SDWA-1228032-00 | ND |
| 2018-04-05 | SDWA-1251701-00 | ND |
| 2018-07-09 | SDWA-1280205-00 | ND |
| 2018-10-12 | SDWA-1313584-00 | ND |
| 2019-02-15 | SDWA-1350470-00 | ND |
| 2020-02-04 | SDWA-1456782-00 | ND |
| 2021-03-25 | SDWA-1554029-00 | ND |
| 2023-02-10 | SDWA-1662230-00 | ND |
| 2023-02-10 | SDWA-1766689-00 | ND |
| 2023-02-10 | SDWA-1766696-00 | ND |