1,1,1,2-Tetrachloroethane
City of Red Bluff
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 11 | 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 |
|---|---|---|
| 2019-04-16 | 5867-004-0830 | ND |
| 2019-04-16 | 5867-007-0800 | ND |
| 2019-04-16 | 5867-008-0900 | ND |
| 2019-04-16 | 5867-009-1000 | ND |
| 2019-04-16 | 5867-014-1000 | ND |
| 2019-04-16 | 5867-015-0900 | ND |
| 2019-04-17 | 5867-003-0740 | ND |
| 2019-04-17 | 5867-005-0800 | ND |
| 2019-04-17 | 5867-010-0815 | ND |
| 2019-04-17 | 5867-011-0830 | ND |
| 2019-04-17 | 5867-012-0720 | ND |