1,1,1,2-Tetrachloroethane
Towering Oaks and Rosewood Hills Subdivisionivi
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
19
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2015-02-23 | AC81483 | ND |
| 2015-02-23 | AC81473 | ND |
| 2015-02-23 | AC81481 | ND |
| 2016-02-17 | AD23949 | ND |
| 2016-02-17 | AD23953 | ND |
| 2016-02-17 | AD23945 | ND |
| 2017-02-07 | AD69276 | ND |
| 2017-02-07 | AD69248 | ND |
| 2017-02-07 | AD69250 | ND |
| 2018-01-22 | AE09615 | ND |
| 2018-01-22 | AE09621 | ND |
| 2018-01-22 | AE09611 | ND |
| 2018-08-03 | AE35870 | ND |
| 2018-10-30 | AE44876 | ND |
| 2019-02-20 | AE55073 | ND |
| 2019-02-20 | AE55095 | ND |
| 2019-02-20 | AE55067 | ND |
| 2019-02-20 | AE55055 | ND |
| 2019-04-25 | AE63736 | ND |