1,1,1-Trichloroethane
Willowbrook Development
NOTE: Willowbrook Development purchases water from Johnston County - West which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by Johnston County - West.
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 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | 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
NOTE: Willowbrook Development purchases water from Johnston County - West which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by Johnston County - West.
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-07 | 8545-010714-EP1V | ND |
| 2015-01-13 | ND | |
| 2016-01-12 | 8545-011216-EP1V | ND |
| 2017-01-17 | 8545-011717-EP1V | ND |
| 2018-01-23 | 8545-012318-EP1V | ND |
| 2019-01-22 | 8545-012219-EP1V | ND |