1,1,1-Trichloroethane
Howard County Cons Public Water Supply District 1
NOTE: Howard County Cons Public Water Supply District 1 purchases water from Howard County Regional Water Comm. which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by Howard County Regional Water Comm..
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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
NOTE: Howard County Cons Public Water Supply District 1 purchases water from Howard County Regional Water Comm. which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by Howard County Regional Water Comm..
| Date | Lab ID | Result |
|---|---|---|
| 2017-04-06 | AC93415 | ND |