1,1,1-Trichloroethane
State College Boro Water Auth.
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.
23
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 | ND | 1 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2018-02-14 | 8B14177-01 | ND |
| 2019-02-12 | 9B12139-01 | ND |
| 2020-02-12 | 21735644.00 | ND |
| 2020-02-12 | 21735643.00 | ND |
| 2020-02-12 | 21735642.00 | ND |
| 2020-02-12 | 21735641.00 | ND |
| 2020-02-12 | 21735640.00 | ND |
| 2021-02-16 | 23954000.00 | ND |
| 2021-04-07 | 24321974.00 | ND |
| 2021-08-16 | 25098841.00 | ND |
| 2021-09-13 | 25291244.00 | ND |
| 2021-11-15 | 25654890.00 | ND |
| 2022-02-15 | 26182290.00 | ND |
| 2022-09-01 | 27520793.00 | ND |
| 2022-11-16 | 27890870.00 | ND |
| 2023-02-14 | 28415060.00 | ND |
| 2023-05-16 | 28981581.00 | ND |
| 2023-08-14 | 29577819.00 | ND |
| 2023-11-13 | 30139902.00 | ND |
| 2023-12-20 | 30314240.00 | ND |
| 2023-12-20 | 30314303.00 | ND |
| 2023-12-20 | 30314261.00 | ND |
| 2023-12-20 | 30314282.00 | ND |