1,1,2,2-Tetrachloroethane
Larchmont Village
NOTE: Larchmont Village purchases water from Westchester Joint Water Works which is required to test for 1,1,2,2-tetrachloroethane. Sample information shown below was taken by Westchester Joint Water 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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 2 | 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
NOTE: Larchmont Village purchases water from Westchester Joint Water Works which is required to test for 1,1,2,2-tetrachloroethane. Sample information shown below was taken by Westchester Joint Water Works.
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-17 | AQ04609POC | ND |
| 2014-10-23 | AQ22037POC | ND |
| 2014-12-01 | AQ2601POC | ND |
| 2015-10-27 | AR23195POC | ND |
| 2015-10-27 | AR23193POC | ND |
| 2015-10-27 | AR23194POC | ND |
| 2016-09-06 | AS19150POC WJWW | ND |
| 2017-11-13 | AT23824POC-WJWW | ND |
| 2017-11-13 | AT23822POC-WJWW | ND |
| 2018-02-21 | AU03660POCS | ND |
| 2018-09-24 | AU20757WJWWPOCS | ND |
| 2018-10-24 | AU23144POCS | ND |
| 2019-10-21 | AV22258POCS | ND |
| 2019-11-12 | AV23850WJWW-POCS | ND |