1,1,1,2-Tetrachloroethane
Suburban Water Systems - La Mirada
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2015-06-30 | 9588-015-1015 | ND |
| 2015-08-13 | 9588-006-1041 | ND |
| 2016-05-19 | 9588-015-1220 | ND |
| 2016-08-04 | 9588-006-1208 | ND |
| 2017-05-08 | 9588-015-1259 | ND |
| 2017-08-07 | 9588-006-1420 | ND |
| 2018-05-24 | 9588-015-1128 | ND |
| 2018-09-07 | 9588-006-1503 | ND |
| 2019-05-14 | 9588-015-1513 | ND |
| 2019-09-10 | 9588-006-0959 | ND |