1,1,1-Trichloroethane
Lafayette 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.
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.350 ppb | 2 | 1 | ND - 0.700 ppb |
| 2015 | 0.250 ppb | 2 | 1 | ND - 0.500 ppb |
| 2016 | ND | 2 | 0 | ND |
| 2017 | 0.290 ppb | 2 | 1 | ND - 0.580 ppb |
| 2018 | 0.300 ppb | 2 | 1 | ND - 0.600 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 |
|---|---|---|
| 2014-06-02 | 318591RV-1402 | 0.700 ppb |
| 2014-06-02 | 318592RV-1402 | ND |
| 2015-06-23 | 342731RV-1502 | ND |
| 2015-07-21 | 344572RV-1503 | 0.500 ppb |
| 2016-06-06 | 16060789001ARV-1 | ND |
| 2016-06-06 | 16060789003ARV-1 | ND |
| 2017-05-23 | 2017052173RV-170 | ND |
| 2017-05-23 | 2017052174RV-170 | 0.580 ppb |
| 2018-05-29 | 2018052853RV-180 | ND |
| 2018-05-29 | 2018052858RV-180 | 0.600 ppb |
| 2019-05-22 | 2019052290RV-190 | ND |
| 2019-05-22 | 2019052291RV-190 | ND |