1,1,2,2-Tetrachloroethane
City of Como
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.
11
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2015-06-30 | Q1524793017 | ND |
| 2015-06-30 | Q1524793018 | ND |
| 2016-05-25 | Q1620556001 | ND |
| 2016-05-25 | Q1620556003 | ND |
| 2017-11-08 | Q1757394005 | ND |
| 2017-11-08 | Q1757394001 | ND |
| 2018-05-09 | Q1818832002 | ND |
| 2018-05-09 | Q1818832008 | ND |
| 2019-06-13 | Q1936216009 | ND |
| 2019-06-13 | Q1936216011 | ND |
| 2019-09-19 | Q1967125001 | ND |