1,1,2,2-Tetrachloroethane
Harford County Department of Public Works
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.
8
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 7 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-01-17 | 0120016_01_L4901 | ND |
| 2014-04-14 | 0120016_02_L5015 | ND |
| 2014-04-14 | 0120016_03_L5015 | ND |
| 2014-04-29 | 0120016_01_L5028 | ND |
| 2014-07-11 | 0120016_01_L5153 | ND |
| 2014-10-31 | 0120016_01_20376 | ND |
| 2014-12-11 | 0120016_01_20446 | ND |
| 2015-02-13 | 0120016_01_20547 | ND |