1,1,1-Trichloroethane
Marble Community Water System
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.
11
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 | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-19 | 92377444001VOC | ND |
| 2020-03-16 | 92469616001_12710 | ND |
| 2021-03-29 | 92530231001A_12710 | ND |
| 2021-06-15 | 92544634001_12710 | ND |
| 2021-08-11 | 92555441001_12710 | ND |
| 2021-10-19 | 92567887001_12710 | ND |
| 2022-02-09 | 92587505001_12710 | ND |
| 2022-05-11 | 92604135001_12710 | ND |
| 2022-09-12 | 2093908-01 | ND |
| 2023-07-10 | 37729_23-36797 | ND |
| 2023-07-10 | 37729_23-36799 | ND |