1,1,1-Trichloroethane
Columbia Water Company
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.
11
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-04-02 | 2306480001 | ND |
| 2019-04-10 | 9042204-01 | ND |
| 2020-04-07 | 22172654.00 | ND |
| 2020-04-07 | 22172675.00 | ND |
| 2020-04-23 | 22173056.00 | ND |
| 2021-04-12 | 24395237.00 | ND |
| 2022-04-11 | 26608865.00 | ND |
| 2023-03-06 | 28662973.00 | ND |
| 2023-04-03 | 28859674.00 | ND |
| 2023-04-17 | 29061121.00 | ND |
| 2023-04-17 | 28859836.00 | ND |