1,1,1-Trichloroethane
Castle Mountain Creeks Owners Association
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.
14
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 1 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2019-01-07 | V1900713 | ND |
| 2020-02-11 | V2006067 | ND |
| 2020-05-13 | V2021731 | ND |
| 2020-08-24 | V2041261 | ND |
| 2020-12-08 | V2061672 | ND |
| 2021-01-08 | V2101074 | ND |
| 2021-04-15 | V2117132 | ND |
| 2021-07-15 | V2135856 | ND |
| 2021-10-26 | V2157582 | ND |
| 2022-03-07 | V2210666 | ND |
| 2022-04-06 | V2216003 | ND |
| 2022-09-15 | V2246108 | ND |
| 2022-12-22 | V2262581 | ND |
| 2023-10-19 | V2322779-01 | ND |