1,1,1-Trichloroethane
Hinsdale Town Water District
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.
6
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 | 2.40 ppb | 1 | 1 | 2.40 ppb |
| 2019 | 2.00 ppb | 1 | 1 | 2.00 ppb |
| 2020 | 1.70 ppb | 1 | 1 | 1.70 ppb |
| 2021 | 1.20 ppb | 1 | 1 | 1.20 ppb |
| 2022 | 0.850 ppb | 1 | 1 | 0.850 ppb |
| 2023 | 1.40 ppb | 1 | 1 | 1.40 ppb |
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 |
|---|---|---|
| 2018-09-13 | 1815875-001 | 2.40 ppb |
| 2019-08-22 | 1914132-001 | 2.00 ppb |
| 2020-09-17 | 2015370-001 | 1.70 ppb |
| 2021-07-22 | 2111795-001 | 1.20 ppb |
| 2022-08-18 | 2213025-001 | 0.850 ppb |
| 2023-09-12 | EHS2300053328-POC | 1.40 ppb |