1,1,1,2-Tetrachloroethane
Chesterfield County Central Water System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
26
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 |
|---|---|---|---|---|
| 2012 | ND | 4 | 0 | ND |
| 2013 | ND | 6 | 0 | ND |
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | 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 |
|---|---|---|
| 2012-06-05 | E120400841 | ND |
| 2012-06-05 | E120400817 | ND |
| 2012-06-05 | E120400837 | ND |
| 2012-06-05 | E120400821 | ND |
| 2013-04-23 | E130202509 | ND |
| 2013-04-23 | E130202506 | ND |
| 2013-04-23 | E130202494 | ND |
| 2013-04-23 | E130202481 | ND |
| 2013-05-14 | E130501441 | ND |
| 2013-05-14 | E130501440 | ND |
| 2014-04-22 | E140308605 | ND |
| 2014-04-22 | E140308573 | ND |
| 2014-04-22 | E140308595 | ND |
| 2014-04-22 | E140308606 | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2016-04-25 | E160305675 | ND |
| 2016-04-25 | E160305671 | ND |
| 2016-04-25 | E160305672 | ND |
| 2016-04-25 | E160305682 | ND |
| 2017-04-19 | E170304726 | ND |
| 2017-04-19 | E170304724 | ND |
| 2017-04-19 | E170304741 | ND |
| 2017-04-20 | E170304722 | ND |