1,1,1,2-Tetrachloroethane
St. George Fire District 1
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
12
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-17 | 1403-04597-001 | ND |
| 2014-06-11 | 1406-10952-001 | ND |
| 2014-09-16 | 1409-19160-001 | ND |
| 2014-12-18 | BH56691 | ND |
| 2015-03-18 | 1503-04692-001 | ND |
| 2015-06-22 | 1506-12183-001 | ND |
| 2015-09-24 | 1509-20810-001 | ND |
| 2015-12-08 | 1512-26141-001 | ND |
| 2016-08-17 | 1608-18319-001 | ND |
| 2016-11-09 | 1611-25836-001 | ND |
| 2017-09-19 | 1709-22348-001 | ND |
| 2018-09-17 | 1809-23821-001 | ND |