1,1,1,2-Tetrachloroethane
Wisconsin Dells Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2020-09-10 | 471856 | ND |
| 2020-09-11 | 472186 | ND |
| 2020-09-11 | 472171 | ND |
| 2020-09-11 | 472166 | ND |
| 2020-09-11 | 472174 | ND |
| 2020-09-11 | 472182 | ND |
| 2023-04-26 | 1317741 | ND |
| 2023-04-26 | 1317743 | ND |
| 2023-06-20 | 1337392 | ND |
| 2023-07-18 | 1349254 | ND |
| 2023-07-18 | 1349252 | ND |