1,1,1-Trichloroethane
Deforest Waterworks
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.
20
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 | 7 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | 0.110 ppb | 3 | 1 | ND - 0.330 ppb |
| 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 |
|---|---|---|
| 2014-06-24 | 140960001 | ND |
| 2014-06-24 | 140958001 | ND |
| 2014-06-24 | 140959001 | ND |
| 2014-07-23 | 147208001 | ND |
| 2014-08-12 | 150736001 | ND |
| 2014-09-10 | 156235001 | ND |
| 2014-10-15 | 163748001 | ND |
| 2015-02-17 | 179800001 | ND |
| 2015-02-17 | 179800003 | ND |
| 2015-09-15 | 217481001 | ND |
| 2016-04-18 | 249026001 | ND |
| 2016-04-18 | 249027001 | ND |
| 2016-09-26 | 279964001 | ND |
| 2017-06-20 | 999039 | ND |
| 2017-06-20 | 999036 | ND |
| 2018-03-13 | 1044929 | ND |
| 2018-03-13 | 1044928 | ND |
| 2018-08-29 | 404007001 | 0.330 ppb |
| 2019-06-19 | 1129331 | ND |
| 2019-06-19 | 1129330 | ND |