1,1,1-Trichloroethane
Assumption Parish Waterworks District 1
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 8 | 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 |
---|---|---|
2014-02-03 | AD88681 | ND |
2014-02-03 | AD88681 | ND |
2014-04-14 | AD90510 | ND |
2014-04-14 | AD90510 | ND |
2014-07-21 | AD93831 | ND |
2014-07-21 | AD93831 | ND |
2014-10-06 | AD98268 | ND |
2014-10-06 | AD98268 | ND |
2015-03-31 | 35181766003 | ND |
2015-03-31 | 35181766003 | ND |
2016-03-15 | 35234393001 | ND |
2016-03-15 | 35234393001 | ND |
2017-01-31 | 35292293003 | ND |
2017-01-31 | 35292293003 | ND |
2018-01-25 | 35370415008 | ND |
2018-01-25 | 35370415008 | ND |
2019-01-29 | 35445085001 | ND |
2019-01-29 | 35445085001 | ND |