1,1,2,2-Tetrachloroethane
Farm-to-market Associates
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.
9
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.167 ppb | 3 | 1 | ND - 0.500 ppb |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-09-17 | BH15304 | ND |
| 2015-07-23 | 307161-07POCS | ND |
| 2015-07-23 | 307161-08POCS | ND |
| 2016-07-20 | 317742-02POCS | ND |
| 2016-07-20 | 317742-01POCS | ND |
| 2018-02-27 | BZ95430POCS | ND |
| 2018-07-31 | 420-140368-8POCS | ND |
| 2018-07-31 | 420-140368-9POCS | 0.500 ppb |
| 2019-08-08 | 420-158308-8POCS | ND |