1,1,1,2-Tetrachloroethane
Oakdale
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2015-05-18 | 15E1325-01 | ND |
| 2016-07-19 | 3497659 | ND |
| 2016-07-19 | 3497668 | ND |
| 2016-07-19 | 3497708 | ND |
| 2016-07-19 | 3497736 | ND |
| 2016-07-19 | 3497755 | ND |
| 2016-07-19 | 3497769 | ND |
| 2018-08-29 | 18H2504-04 | ND |
| 2018-11-28 | 18K1049-01 | ND |
| 2019-09-24 | 19I1346-03 | ND |
| 2019-09-24 | 19I1346-05 | ND |