1,1,1,2-Tetrachloroethane
Richland
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
10
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-03-26 | AI36767 | ND |
| 2014-04-30 | AI39260 | ND |
| 2014-07-23 | AI46627 | ND |
| 2015-04-07 | AI74291 | ND |
| 2016-04-20 | AJ10599 | ND |
| 2016-04-20 | AJ10600 | ND |
| 2017-10-17 | 173297-01 | ND |
| 2018-10-16 | 182882-01 | ND |
| 2019-02-12 | 187754-01 | ND |
| 2019-02-14 | 187755-01 | ND |