1,1,1-Trichloroethane
South Middleton Twp Water Authority
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.
33
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 | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-05-15 | 8052993-01 | ND |
| 2018-05-15 | 8052993-02 | ND |
| 2018-05-15 | 8052993-03 | ND |
| 2019-05-14 | 9052836-02 | ND |
| 2019-05-14 | 9052836-03 | ND |
| 2019-05-14 | 9052836-01 | ND |
| 2020-05-14 | 22355425.00 | ND |
| 2020-05-14 | 22355404.00 | ND |
| 2020-05-14 | 22355383.00 | ND |
| 2021-02-17 | 24007058.00 | ND |
| 2021-02-17 | 24007010.00 | ND |
| 2021-02-17 | 24007034.00 | ND |
| 2021-05-18 | 24579637.00 | ND |
| 2021-05-18 | 24579686.00 | ND |
| 2021-05-18 | 24579662.00 | ND |
| 2021-08-17 | 25164854.00 | ND |
| 2021-08-17 | 25164903.00 | ND |
| 2021-08-17 | 25164879.00 | ND |
| 2022-05-17 | 26788404.00 | ND |
| 2022-05-17 | 26788453.00 | ND |
| 2022-05-17 | 26788429.00 | ND |
| 2022-08-23 | 27587400.00 | ND |
| 2022-08-23 | 27587401.00 | ND |
| 2022-08-23 | 27587399.00 | ND |
| 2022-11-16 | 27948231.00 | ND |
| 2022-11-16 | 27948255.00 | ND |
| 2022-11-16 | 27948206.00 | ND |
| 2023-03-30 | 28650588.00 | ND |
| 2023-03-30 | 28650637.00 | ND |
| 2023-03-30 | 28650613.00 | ND |
| 2023-05-25 | 29247754.00 | ND |
| 2023-05-25 | 29247753.00 | ND |
| 2023-05-25 | 29247752.00 | ND |