1,1,1-Trichloroethane
Pilot Mountain, Town of
NOTE: Pilot Mountain, Town of purchases water from City of Mount Airy which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Mount Airy.
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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: Pilot Mountain, Town of purchases water from City of Mount Airy which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Mount Airy.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-30 | 45855-03 | ND |
| 2018-01-30 | 45855-06 | ND |
| 2020-01-28 | 77782-03 | ND |
| 2020-01-28 | 77782-07 | ND |
| 2021-01-26 | 189-21 | ND |
| 2021-01-26 | 192-21 | ND |
| 2022-01-25 | 255-22 | ND |
| 2022-01-25 | 258-22 | ND |
| 2023-02-07 | 37729_23-06135 | ND |
| 2023-02-07 | 37729_23-06136 | ND |