1,1,1,2-Tetrachloroethane
Westchester County WD #2
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-06-05 | 1406525-001 POC | ND |
2015-06-17 | 1506G79-001 POC | ND |
2016-12-01 | S013687-04 POC | ND |
2017-06-27 | S019429 POC | ND |
2017-08-04 | 7026292002 POC | ND |
2018-05-11 | 7051465001 POCS | ND |
2019-05-31 | 7091709001 POCS | ND |