1,1,1-Trichloroethane
Ridge Spring, Town of
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.
21
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-02-05 | AD35365 | ND |
| 2014-06-19 | AD41563 | ND |
| 2014-08-21 | AD44333 | ND |
| 2015-06-10 | AD56709 | ND |
| 2015-07-22 | AD58564 | ND |
| 2015-10-21 | AD63347 | ND |
| 2016-02-17 | AD70859 | ND |
| 2016-04-20 | AD74602 | ND |
| 2016-09-27 | AD83029 | ND |
| 2016-11-15 | AD85906 | ND |
| 2017-02-15 | AD89949 | ND |
| 2017-06-06 | AD95398 | ND |
| 2017-10-25 | AE02587 | ND |
| 2018-01-17 | AE06217 | ND |
| 2018-05-02 | AE11636 | ND |
| 2018-07-18 | AE15231 | ND |
| 2018-10-17 | AE19864 | ND |
| 2019-02-27 | AE26426 | ND |
| 2019-04-02 | AE28055 | ND |
| 2019-07-16 | AE33704 | ND |
| 2019-11-25 | AE40764 | ND |