1,1,2,2-Tetrachloroethane
Nocona Hills Water Supply Corporation
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
13
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 | 2 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-12-10 | Q1850817001 | ND |
| 2018-12-10 | Q1850817004 | ND |
| 2019-02-20 | Q1907488002 | ND |
| 2019-02-20 | Q1907488007 | ND |
| 2020-09-21 | Q2037478001 | ND |
| 2020-09-21 | Q2037478003 | ND |
| 2021-06-21 | Q2116016005 | ND |
| 2021-06-21 | Q2116016007 | ND |
| 2022-05-10 | Q2213917001 | ND |
| 2022-05-10 | Q2213917003 | ND |
| 2023-07-05 | Q2326100006 | ND |
| 2023-07-05 | Q2326100008 | ND |
| 2023-10-03 | Q2342315001 | ND |