1,1,1,2-Tetrachloroethane
Emerald Lakes Subdivision
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
14
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 4 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-21 | AE41289 | ND |
| 2018-09-21 | AE41291 | ND |
| 2019-06-13 | AE70595 | ND |
| 2019-06-13 | AE70605 | ND |
| 2020-11-16 | AF34617 | ND |
| 2020-11-16 | AF34619 | ND |
| 2021-04-21 | AF50923 | ND |
| 2021-04-21 | AF50933 | ND |
| 2022-03-08 | AF88104 | ND |
| 2022-03-08 | AF88114 | ND |
| 2022-06-01 | AF99085 | ND |
| 2022-09-06 | AG11654 | ND |
| 2023-09-14 | AG56330 | ND |
| 2023-09-14 | AG56334 | ND |