1,1,1,2-Tetrachloroethane
Orange County WCID 1
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
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 | 5 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-04-17 | AC51076 | ND |
| 2015-02-26 | AC82115 | ND |
| 2015-02-26 | AC82127 | ND |
| 2016-02-23 | AD25080 | ND |
| 2016-02-23 | AD25078 | ND |
| 2017-02-21 | AD71272 | ND |
| 2017-02-21 | AD71274 | ND |
| 2017-05-23 | AD85279 | ND |
| 2017-08-25 | AD94489 | ND |
| 2017-11-07 | AE04095 | ND |
| 2018-02-14 | AE13802 | ND |
| 2018-02-14 | AE13788 | ND |
| 2018-02-14 | AE13784 | ND |
| 2019-04-08 | AE61410 | ND |
| 2019-04-08 | AE61408 | ND |
| 2019-04-08 | AE61406 | ND |