1,1,1-Trichloroethane
Waterloo Water Works
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.
17
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 |
|---|---|---|---|---|
| 2012 | 0.0589 ppb | 9 | 1 | ND - 0.530 ppb |
| 2013 | 0.560 ppb | 3 | 2 | ND - 1.11 ppb |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 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 |
|---|---|---|
| 2012-10-23 | 1942205 | ND |
| 2012-10-23 | 1942198 | ND |
| 2012-10-23 | 1942199 | ND |
| 2012-10-23 | 1942200 | ND |
| 2012-10-23 | 1942201 | ND |
| 2012-10-23 | 1942202 | 0.530 ppb |
| 2012-10-23 | 1942203 | ND |
| 2012-10-23 | 1942204 | ND |
| 2012-10-23 | 1942206 | ND |
| 2013-03-13 | 1968392 | 1.11 ppb |
| 2013-06-19 | 1985831 | 0.570 ppb |
| 2013-07-23 | 1993061 | ND |
| 2014-02-19 | 2036027 | ND |
| 2015-03-05 | 1C50388-01 | ND |
| 2015-10-13 | 1J51068-01 | ND |
| 2016-01-27 | 1A61740-01 | ND |
| 2017-02-08 | 1B70543-01 | ND |