1,1,1,2-Tetrachloroethane
Quint-mar Water Authority
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 7 | 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 |
|---|---|---|
| 2019-02-05 | AB32814 | ND |
| 2019-02-05 | AB32815 | ND |
| 2019-02-05 | AB32816 | ND |
| 2019-02-05 | AB32817 | ND |
| 2019-02-05 | AB32818 | ND |
| 2019-04-17 | AB34289 | ND |
| 2020-07-20 | AB43480 | ND |
| 2022-07-20 | AB60412 | ND |
| 2022-07-20 | AB60413 | ND |
| 2022-07-20 | AB60414 | ND |
| 2022-07-20 | AB60415 | ND |
| 2022-07-20 | AB60416 | ND |
| 2022-07-20 | AB60417 | ND |
| 2022-07-20 | AB60418 | ND |