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 |
|---|---|---|---|---|
| 2014 | 2.40 ppb | 1 | 1 | 2.40 ppb |
| 2015 | 3.10 ppb | 1 | 1 | 3.10 ppb |
| 2016 | 2.60 ppb | 1 | 1 | 2.60 ppb |
| 2017 | 2.30 ppb | 1 | 1 | 2.30 ppb |
| 2018 | 2.40 ppb | 1 | 1 | 2.40 ppb |
| 2019 | 2.00 ppb | 1 | 1 | 2.00 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-06-03 | POC - 1400016046 | 2.40 ppb |
| 2015-06-30 | 2015 POC - EP | 3.10 ppb |
| 2016-08-11 | 2016 POC-1613101 | 2.60 ppb |
| 2017-09-06 | EHS1700045381-SR | 2.30 ppb |
| 2018-09-13 | 1815875-001 | 2.40 ppb |
| 2019-08-22 | 1914132-001 | 2.00 ppb |