1,1,1-Trichloroethane
City of Coeur D Alene
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.
17
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 | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-07-16 | V195339 | ND |
| 2019-05-29 | V204289 | ND |
| 2019-05-29 | V204292 | ND |
| 2019-06-03 | V204364 | ND |
| 2020-07-20 | V218126 | ND |
| 2021-07-20 | V2021070360 | ND |
| 2022-03-22 | V202203039802 | ND |
| 2022-04-26 | V202204048802 | ND |
| 2022-04-27 | V2022040546 | ND |
| 2022-04-27 | V2022040529 | ND |
| 2022-05-02 | V202205003001 | ND |
| 2022-05-02 | V2022050013 | ND |
| 2022-05-02 | V2022050007 | ND |
| 2022-07-12 | V202207029502 | ND |
| 2022-10-31 | V202210064202 | ND |
| 2023-02-13 | V202302018702 | ND |
| 2023-05-16 | V202305031902 | ND |