1,1,1-Trichloroethane
Easton Water Div
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.
30
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 | 0.529 ppb | 7 | 2 | ND - 2.10 ppb |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | 0.913 ppb | 8 | 2 | ND - 3.90 ppb |
| 2018 | 1.48 ppb | 6 | 5 | ND - 3.30 ppb |
| 2019 | 0.243 ppb | 7 | 3 | ND - 0.700 ppb |
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 | Result |
|---|---|
| 2014-07-07 | 1.60 ppb |
| 2014-07-07 | ND |
| 2014-07-07 | ND |
| 2014-07-07 | 2.10 ppb |
| 2014-07-07 | ND |
| 2014-07-07 | ND |
| 2014-07-07 | ND |
| 2015-07-14 | ND |
| 2016-10-12 | ND |
| 2017-07-10 | ND |
| 2017-07-10 | 3.40 ppb |
| 2017-07-10 | ND |
| 2017-07-24 | ND |
| 2017-07-24 | ND |
| 2017-07-24 | ND |
| 2017-07-24 | ND |
| 2017-10-02 | 3.90 ppb |
| 2018-01-08 | 3.30 ppb |
| 2018-04-02 | 1.40 ppb |
| 2018-07-09 | 0.500 ppb |
| 2018-07-09 | 1.90 ppb |
| 2018-07-16 | ND |
| 2018-10-01 | 1.80 ppb |
| 2019-01-07 | 0.500 ppb |
| 2019-04-22 | ND |
| 2019-04-22 | ND |
| 2019-07-22 | 0.500 ppb |
| 2019-09-09 | ND |
| 2019-09-09 | ND |
| 2019-10-07 | 0.700 ppb |