1,1,1-Trichloroethane
City of Troutdale
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 7 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 6 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2020-07-29 | VDG012105-V | ND |
| 2020-07-29 | VDG012103-V | ND |
| 2020-07-29 | VDG012107-V | ND |
| 2020-07-29 | VDG012111-V | ND |
| 2020-07-29 | VDG012101-V | ND |
| 2020-07-29 | VDG012109-V | ND |
| 2020-07-29 | VDG012113-V | ND |
| 2022-05-31 | 22-006286-0001-V | ND |
| 2022-05-31 | 22-06286-0006-V | ND |
| 2022-05-31 | 22-006286-0002-V | ND |
| 2022-05-31 | 22-006286-0004-V | ND |
| 2022-05-31 | 22-006286-0005-V | ND |
| 2022-05-31 | 22-006286-0003-V | ND |