1,1,1-Trichloroethane
Montgomery County Municipal Utility District 89
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.
12
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 | 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 |
---|---|---|
2014-11-17 | AC72251 | ND |
2014-11-17 | AC72253 | ND |
2015-06-08 | AC94944 | ND |
2015-06-08 | AC94946 | ND |
2016-12-06 | AD60648 | ND |
2016-12-06 | AD60662 | ND |
2017-05-09 | AD83367 | ND |
2017-09-07 | AD95194 | ND |
2018-07-25 | AE34540 | ND |
2018-07-25 | AE34534 | ND |
2019-11-21 | AE90176 | ND |
2019-11-21 | AE90174 | ND |