1,1,1,2-Tetrachloroethane
Estates At Highland Ridge
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
38
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 | 6 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 8 | 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 | Result |
|---|---|
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-10-10 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-12-23 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-12-14 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-12-28 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-12-21 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-10-23 | ND |
| 2023-12-12 | ND |
| 2023-12-13 | ND |