1,1,1,2-Tetrachloroethane
City of West
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-17 | AC43247 | ND |
| 2015-03-18 | AC85087 | ND |
| 2015-09-21 | AD07872 | ND |
| 2015-10-22 | AD11496 | ND |
| 2016-01-14 | AD18287 | ND |
| 2017-02-06 | AD69196 | ND |
| 2018-07-17 | AE33603 | ND |
| 2019-04-18 | AE62967 | ND |
| 2019-08-12 | AE78070 | ND |
| 2019-11-04 | AE88315 | ND |