1,1,1,2-Tetrachloroethane
City of Elko
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
14
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 | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-05-07 | A4E0883-01 | ND |
| 2014-07-21 | A4G2269-01 | ND |
| 2014-07-23 | 1416770-01 | ND |
| 2014-07-23 | 1416779-01 | ND |
| 2015-05-19 | A5E1802-01 | ND |
| 2015-08-24 | 1521530-01 | ND |
| 2019-08-19 | B19081870-001 | ND |
| 2019-08-19 | B19081921-001 | ND |
| 2019-08-20 | B19082032-001 | ND |
| 2019-08-20 | B19082034-001A | ND |
| 2019-08-21 | B19082173-001A | ND |
| 2019-08-21 | B19082177-001 | ND |
| 2019-09-04 | B19090361-001A | ND |
| 2019-10-28 | B19102498-001 | ND |