1,1,1,2-Tetrachloroethane
Magnolia Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
12
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2014-01-06 | 14008000802 | ND |
| 2014-04-01 | 14093000802 | ND |
| 2014-07-01 | 14184006602 | ND |
| 2015-08-11 | 15225004801 | ND |
| 2016-07-05 | 16189006202 | ND |
| 2016-07-05 | 16189005502 | ND |
| 2016-07-05 | 16189006302 | ND |
| 2017-07-03 | 17187000102 | ND |
| 2018-07-03 | 18186007209 | ND |
| 2019-07-08 | 19191000402 | ND |
| 2019-07-08 | 19191001002 | ND |
| 2019-07-08 | 19191000902 | ND |