1,1,1,2-Tetrachloroethane
Decker Hills
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
21
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 | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-04-15 | AC50585 | ND |
| 2015-09-23 | AD08265 | ND |
| 2015-09-23 | AD08263 | ND |
| 2015-09-23 | AD08267 | ND |
| 2015-09-23 | AD08259 | ND |
| 2016-06-01 | AD38987 | ND |
| 2016-06-01 | AD38989 | ND |
| 2016-06-01 | AD38973 | ND |
| 2016-06-01 | AD38981 | ND |
| 2017-08-25 | AD94469 | ND |
| 2017-08-25 | AD94483 | ND |
| 2017-08-25 | AD94481 | ND |
| 2017-08-25 | AD94475 | ND |
| 2018-07-09 | AE32630 | ND |
| 2018-07-09 | AE32626 | ND |
| 2018-07-09 | AE32644 | ND |
| 2018-07-09 | AE32636 | ND |
| 2019-03-19 | AE59057 | ND |
| 2019-03-19 | AE59039 | ND |
| 2019-03-19 | AE59055 | ND |
| 2019-03-19 | AE59037 | ND |