1,1,1-Trichloroethane
Rra Arrowhead Lake Lots
NOTE: Rra Arrowhead Lake Lots purchases water from City of Wichita Falls which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Wichita Falls.
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 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 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: Rra Arrowhead Lake Lots purchases water from City of Wichita Falls which is required to test for 1,1,1-trichloroethane. Sample information shown below was taken by City of Wichita Falls.
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-21 | Q1833473002 | ND |
| 2018-11-14 | Q1846491001 | ND |
| 2019-05-14 | Q1925075001 | ND |
| 2019-08-19 | Q1956634012 | ND |
| 2020-09-23 | Q2037767001 | ND |
| 2020-11-10 | Q2044047001 | ND |
| 2021-02-03 | Q2103346004 | ND |
| 2021-08-16 | Q2121825003 | ND |
| 2022-08-17 | Q2224340018 | ND |
| 2022-08-17 | Q2224340023 | ND |
| 2023-08-21 | Q2335127007 | ND |
| 2023-08-21 | Q2335127009 | ND |