1,1,1-Trichloroethane
Sierra Road Improvement Association Inc.
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.
0
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 | 0.0534 ppb | 65 | 4 | ND - 1.60 ppb |
| 2015 | 0.0825 ppb | 63 | 5 | ND - 1.80 ppb |
| 2016 | 0.107 ppb | 78 | 8 | ND - 1.70 ppb |
| 2017 | 0.0338 ppb | 68 | 2 | ND - 1.20 ppb |
| 2018 | 0.0978 ppb | 50 | 6 | ND - 1.10 ppb |
| 2019 | 0.0963 ppb | 54 | 5 | ND - 1.30 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 |
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