1,1,1,2-Tetrachloroethane
Amicks Ferry Water System
NOTE: Amicks Ferry Water System purchases water from City of Columbia which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Columbia.
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Samples
Samples exceeding legal limit (MCL)
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 | 3 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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
NOTE: Amicks Ferry Water System purchases water from City of Columbia which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Columbia.
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-12 | AE09073 | ND |
| 2018-07-16 | AE15003 | ND |
| 2019-01-08 | AE23570 | ND |
| 2019-07-16 | AE33661 | ND |
| 2020-10-14 | AE55739 | ND |
| 2020-11-04 | AE56846 | ND |
| 2021-10-19 | AE73590 | ND |
| 2021-10-20 | AE73703 | ND |
| 2022-09-08 | AE89410 | ND |
| 2022-09-19 | AE89796 | ND |
| 2023-09-06 | AF08032 | ND |
| 2023-09-21 | AF08856 | ND |