1,1,2,2-Tetrachloroethane
Wellesley Water Division (MWRA)
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.
68
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 | 9 | 0 | ND |
| 2015 | ND | 12 | 0 | ND |
| 2016 | ND | 12 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 12 | 0 | ND |
| 2019 | ND | 11 | 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 | Result |
|---|---|
| 2014-05-05 | ND |
| 2014-05-05 | ND |
| 2014-05-05 | ND |
| 2014-08-04 | ND |
| 2014-08-04 | ND |
| 2014-08-04 | ND |
| 2014-11-06 | ND |
| 2014-11-06 | ND |
| 2014-11-06 | ND |
| 2015-03-11 | ND |
| 2015-03-11 | ND |
| 2015-03-11 | ND |
| 2015-05-06 | ND |
| 2015-05-06 | ND |
| 2015-05-06 | ND |
| 2015-08-06 | ND |
| 2015-08-06 | ND |
| 2015-08-06 | ND |
| 2015-11-05 | ND |
| 2015-11-05 | ND |
| 2015-11-05 | ND |
| 2016-02-03 | ND |
| 2016-02-03 | ND |
| 2016-03-08 | ND |
| 2016-05-04 | ND |
| 2016-05-04 | ND |
| 2016-05-04 | ND |
| 2016-08-03 | ND |
| 2016-08-03 | ND |
| 2016-08-03 | ND |
| 2016-11-03 | ND |
| 2016-11-03 | ND |
| 2016-11-03 | ND |
| 2017-02-01 | ND |
| 2017-02-01 | ND |
| 2017-02-01 | ND |
| 2017-05-03 | ND |
| 2017-05-03 | ND |
| 2017-05-03 | ND |
| 2017-08-29 | ND |
| 2017-08-29 | ND |
| 2017-08-29 | ND |
| 2017-11-06 | ND |
| 2017-11-06 | ND |
| 2017-11-06 | ND |
| 2018-02-08 | ND |
| 2018-02-08 | ND |
| 2018-02-08 | ND |
| 2018-05-03 | ND |
| 2018-05-03 | ND |
| 2018-05-03 | ND |
| 2018-08-01 | ND |
| 2018-08-01 | ND |
| 2018-08-01 | ND |
| 2018-11-01 | ND |
| 2018-11-01 | ND |
| 2018-11-01 | ND |
| 2019-02-04 | ND |
| 2019-02-04 | ND |
| 2019-02-04 | ND |
| 2019-05-01 | ND |
| 2019-05-01 | ND |
| 2019-08-02 | ND |
| 2019-08-02 | ND |
| 2019-08-02 | ND |
| 2019-11-07 | ND |
| 2019-11-07 | ND |
| 2019-11-07 | ND |