1,1,1,2-Tetrachloroethane
Charlotte Courthouse, Town of
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | 1 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-07-23 | 14-11053 | ND |
| 2015-07-20 | 460013-JAMES R. | ND |
| 2016-08-16 | 16-14626 | ND |
| 2016-08-16 | 16-14625 | ND |
| 2016-08-16 | 16-14624 | ND |
| 2018-12-27 | 18-25392 | ND |
| 2019-08-29 | 19-15793 | ND |
| 2019-08-29 | 19-15794 | ND |
| 2019-08-29 | 19-15795 | ND |