1,1,1-Trichloroethane
Battle Ground 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.
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 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2018-04-10 | ND | |
| 2018-07-18 | ND | |
| 2019-05-21 | ND | |
| 2019-11-07 | ND | |
| 2021-06-23 | 4188694 | ND |
| 2021-10-19 | 4194906 | ND |
| 2022-05-31 | 4292478 | ND |
| 2022-05-31 | 4292477 | ND |
| 2022-06-29 | 4303896 | ND |
| 2022-10-27 | 4370656 | ND |
| 2023-06-07 | 4473915 | ND |
| 2023-07-18 | 4488413 | ND |
| 2023-12-05 | 4570035 | ND |