1,1,1-Trichloroethane
Encinal Water Supply Corporation
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.
19
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 | 6 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2018-07-19 | AE33973 | ND |
| 2018-07-19 | AE33965 | ND |
| 2019-09-26 | AE84864 | ND |
| 2019-12-11 | AE92154 | ND |
| 2020-03-24 | AF04315 | ND |
| 2020-03-24 | AF04317 | ND |
| 2020-03-24 | AF04319 | ND |
| 2020-06-08 | AF14872 | ND |
| 2020-07-20 | AF19932 | ND |
| 2020-12-10 | AF37297 | ND |
| 2021-08-04 | AF64835 | ND |
| 2021-08-04 | AF64837 | ND |
| 2021-12-22 | AF79284 | ND |
| 2022-09-29 | AG15510 | ND |
| 2022-09-29 | AG15512 | ND |
| 2022-09-29 | AG15514 | ND |
| 2023-09-14 | AG56310 | ND |
| 2023-09-14 | AG56314 | ND |
| 2023-09-14 | AG56318 | ND |