1,1,1-Trichloroethane
City of Shavano Park
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.
24
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 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-03-02 | AE16674 | ND |
| 2018-03-02 | AE16676 | ND |
| 2018-03-02 | AE16700 | ND |
| 2018-03-02 | AE16668 | ND |
| 2019-04-03 | AE61029 | ND |
| 2019-04-03 | AE61035 | ND |
| 2019-04-03 | AE61039 | ND |
| 2019-04-03 | AE61047 | ND |
| 2020-02-24 | AE99519 | ND |
| 2020-02-24 | AE99539 | ND |
| 2020-02-24 | AE99541 | ND |
| 2020-05-15 | AF11875 | ND |
| 2021-02-23 | AF43941 | ND |
| 2021-02-23 | AF43945 | ND |
| 2021-02-23 | AF43943 | ND |
| 2021-06-18 | AF58893 | ND |
| 2022-03-09 | AF88394 | ND |
| 2022-03-09 | AF88406 | ND |
| 2022-03-09 | AF88408 | ND |
| 2022-03-09 | AF88412 | ND |
| 2023-06-22 | AG45585 | ND |
| 2023-06-22 | AG45593 | ND |
| 2023-06-22 | AG45601 | ND |
| 2023-06-22 | AG45603 | ND |