1,1,1-Trichloroethane
Highridge Water Authority
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.
14
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-02-19 | 14022960-001 | ND |
| 2014-02-19 | 14022960-002 | ND |
| 2015-02-18 | 12465609 | ND |
| 2015-02-18 | 12465629 | ND |
| 2016-02-18 | 13934827 | ND |
| 2016-02-18 | 13934848 | ND |
| 2017-04-05 | 16027021 | ND |
| 2017-04-05 | 16027044 | ND |
| 2018-06-13 | 7054911001 | ND |
| 2018-06-13 | 7054911002 | ND |
| 2019-06-12 | 7093386001 | ND |
| 2019-06-12 | 7093386002 | ND |
| 2019-07-16 | 7097758001 | ND |
| 2019-07-16 | 7097758002 | ND |