1,1,1-Trichloroethane
Northcrest Ranch Water System
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.
13
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 | ND | 3 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2014-04-10 | AC50138 | ND |
| 2014-04-10 | AC50148 | ND |
| 2014-06-05 | AC56097 | ND |
| 2015-04-22 | AC89232 | ND |
| 2015-04-22 | AC89234 | ND |
| 2016-11-30 | AD59599 | ND |
| 2016-11-30 | AD59617 | ND |
| 2017-09-12 | AD95777 | ND |
| 2017-09-12 | AD95773 | ND |
| 2018-07-24 | AE34333 | ND |
| 2018-07-24 | AE34335 | ND |
| 2019-09-30 | AE85137 | ND |
| 2019-11-25 | AE90436 | ND |