1,1,1,2-Tetrachloroethane
Lake Medina Shores
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-05-13 | AC53971 | ND |
| 2015-03-12 | AC84149 | ND |
| 2015-03-12 | AC84147 | ND |
| 2016-06-16 | AD41005 | ND |
| 2016-06-16 | AD41023 | ND |
| 2017-03-28 | AD77118 | ND |
| 2017-03-28 | AD77134 | ND |
| 2018-08-02 | AE35590 | ND |
| 2018-08-02 | AE35588 | ND |
| 2019-10-31 | AE88176 | ND |
| 2019-10-31 | AE88172 | ND |