1,1,1-Trichloroethane
West Gregg Special Utility District
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.
22
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 | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 5 | 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 |
|---|---|---|
| 2018-09-13 | Q1836486004 | ND |
| 2018-09-13 | Q1836486002 | ND |
| 2018-12-05 | Q1849734003 | ND |
| 2019-02-14 | Q1906942006 | ND |
| 2019-02-14 | Q1906942010 | ND |
| 2019-03-28 | Q1912650001 | ND |
| 2019-03-28 | Q1912650003 | ND |
| 2020-01-09 | Q2000956014 | ND |
| 2020-01-09 | Q2000956016 | ND |
| 2020-01-09 | Q2000956018 | ND |
| 2021-06-15 | Q2115566006 | ND |
| 2021-06-15 | Q2115566008 | ND |
| 2021-06-15 | Q2115566004 | ND |
| 2022-03-14 | Q2208516003 | ND |
| 2022-08-17 | Q2224332010 | ND |
| 2022-08-17 | Q2224332012 | ND |
| 2022-08-17 | Q2224332014 | ND |
| 2022-12-08 | Q2237012003 | ND |
| 2023-03-07 | Q2308919006 | ND |
| 2023-03-07 | Q2308919008 | ND |
| 2023-03-07 | Q2308919010 | ND |
| 2023-07-19 | Q2328453002 | ND |