1,1,1,2-Tetrachloroethane
Adams Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-08-17 | 462474 | ND |
| 2020-08-17 | 462477 | ND |
| 2020-12-07 | 512222 | ND |
| 2021-02-23 | 548789001 | ND |
| 2021-02-23 | 548789001 | ND |
| 2021-05-18 | 562428001 | ND |
| 2021-08-02 | 575843001 | ND |
| 2021-10-11 | 588954001 | ND |
| 2022-08-15 | 637216001 | ND |
| 2022-09-21 | 644336001 | ND |
| 2023-05-08 | 677574001 | ND |
| 2023-05-08 | 677576001 | ND |
| 2023-08-08 | 693877001 | ND |