1,1,1-Trichloroethane
Big Flats Water District #2
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | 0.693 ppb | 6 | 4 | ND - 1.30 ppb |
| 2021 | 0.517 ppb | 6 | 3 | ND - 1.10 ppb |
| 2022 | 0.313 ppb | 3 | 1 | ND - 0.940 ppb |
| 2023 | 0.293 ppb | 3 | 1 | ND - 0.880 ppb |
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 |
|---|---|---|
| 2018-04-04 | R1802920-002POCS | ND |
| 2018-04-04 | R1802920-001POCS | ND |
| 2019-04-03 | R1902904-002POCS | ND |
| 2019-04-03 | R1902904-001POCS | ND |
| 2020-01-08 | 3080420001POC | 0.930 ppb |
| 2020-04-10 | 3096566002POC | ND |
| 2020-04-10 | 3096566001POC | ND |
| 2020-04-10 | 3096566003POC | 0.930 ppb |
| 2020-07-01 | 3112191001POC | 1.000 ppb |
| 2020-10-07 | 3134231001POC | 1.30 ppb |
| 2021-01-13 | 3152400001POC | 1.10 ppb |
| 2021-04-07 | 3168913002POC | ND |
| 2021-04-07 | 3168913001POC | ND |
| 2021-04-07 | 3168913003POC | 0.900 ppb |
| 2021-07-07 | 3187629001 | ND |
| 2021-10-13 | R2110762-001POCS | 1.10 ppb |
| 2022-04-07 | S2D0298-03POCS | 0.940 ppb |
| 2022-04-07 | S2D0298-02POCS | ND |
| 2022-04-07 | S2D0298-01POCS | ND |
| 2023-04-24 | R2303482-001POC | ND |
| 2023-04-24 | R2303482-002POC | ND |
| 2023-07-19 | T3G2236-01POCS | 0.880 ppb |