1,1,2,2-Tetrachloroethane
Ely Municipal Water Department
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.
15
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 | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-02-18 | 1402384-002 | ND |
| 2014-02-18 | 1402384-001 | ND |
| 2014-04-15 | 1404372-001 | ND |
| 2014-04-15 | 1404372-002 | ND |
| 2014-12-16 | 1412517-001 | ND |
| 2015-03-11 | 1503401-003 | ND |
| 2016-09-08 | 6I13035-04V | ND |
| 2016-09-08 | 6I13035-01 | ND |
| 2016-09-08 | 6I13035-02 | ND |
| 2016-09-08 | 6I13035-03 | ND |
| 2018-11-08 | 18110223-007 | ND |
| 2019-11-14 | 19110404-002 | ND |
| 2019-11-14 | 19110404-003 | ND |
| 2019-11-14 | 19110404-005 | ND |
| 2019-11-21 | 19110631-001 | ND |