1,1,1,2-Tetrachloroethane
Cullman Utilities Board
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
17
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 | ND | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2019-07-09 | L1116869-01 | ND |
| 2020-09-14 | 20171257001_IVOC | ND |
| 2020-10-21 | 20176647001_IVOC | ND |
| 2021-03-12 | 35618624001_IVOC | ND |
| 2021-05-24 | 35635610001_IVOC | ND |
| 2021-08-09 | 35654208001_IVOC | ND |
| 2021-11-15 | 35678231001_IVOC | ND |
| 2022-01-19 | 35691464001_IVOC | ND |
| 2022-03-16 | 35704226001_IVOC | ND |
| 2022-04-20 | 35712321001_IVOC | ND |
| 2022-07-26 | DC06126-01 | ND |
| 2022-09-21 | 35748351001_IVOC | ND |
| 2022-10-19 | 35754169001_IVOC | ND |
| 2023-01-19 | 35773721001_IVOC | ND |
| 2023-04-25 | 35794894001_IVOC | ND |
| 2023-07-27 | 35815984001_IVOC | ND |
| 2023-10-17 | 35835049001_IVOC | ND |