1,1,1,2-Tetrachloroethane
Riverdale Subdivision
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-02-21 | 38859101-VOC | ND |
| 2018-05-16 | 39301001 | ND |
| 2018-08-22 | 40588001-VOC | ND |
| 2018-11-19 | 41796901-VOC | ND |
| 2019-02-27 | 43169501-VOC | ND |
| 2020-02-17 | 48249101 | ND |
| 2020-12-22 | 53331101 | ND |
| 2021-02-09 | 53345401 | ND |
| 2022-02-28 | 57715901 | ND |