1,1,2,2-Tetrachloroethane
Walker Water
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.
17
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 | ND | 8 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-25 | 14086000901 | ND |
| 2014-03-25 | 14086001001 | ND |
| 2014-06-25 | 14177005101 | ND |
| 2014-06-25 | 14177005201 | ND |
| 2014-07-01 | 14184007301 | ND |
| 2014-07-01 | 14184007401 | ND |
| 2014-10-08 | 14282007801 | ND |
| 2014-10-08 | 14282007901 | ND |
| 2015-01-05 | 15008007701 | ND |
| 2015-01-05 | 15008007801 | ND |
| 2015-04-01 | 15092005801 | ND |
| 2015-04-01 | 15092005701 | ND |
| 2015-07-08 | 15190008801 | ND |
| 2015-07-08 | 15190008901 | ND |
| 2015-10-06 | 15281000601 | ND |
| 2015-10-06 | 15281000501 | ND |
| 2016-08-23 | 16237003301 | ND |