1,1,1-Trichloroethane
Fort Bend County WCID 2
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.
23
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 | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-02-04 | AC41259 | ND |
| 2014-02-04 | AC41261 | ND |
| 2015-02-04 | AC79269 | ND |
| 2015-02-04 | AC79287 | ND |
| 2015-02-04 | AC79285 | ND |
| 2015-02-04 | AC79255 | ND |
| 2016-01-27 | AD20429 | ND |
| 2016-01-27 | AD20425 | ND |
| 2016-01-27 | AD20449 | ND |
| 2016-01-27 | AD20447 | ND |
| 2017-01-05 | AD63223 | ND |
| 2017-01-05 | AD63249 | ND |
| 2017-01-05 | AD63217 | ND |
| 2017-01-05 | AD63255 | ND |
| 2017-01-05 | AD63227 | ND |
| 2018-01-09 | AE08371 | ND |
| 2018-01-09 | AE08361 | ND |
| 2018-01-09 | AE08397 | ND |
| 2018-01-09 | AE08385 | ND |
| 2019-01-25 | AE51622 | ND |
| 2019-04-11 | AE62090 | ND |
| 2019-04-11 | AE62086 | ND |
| 2019-07-19 | AE75352 | ND |