1,1,1,2-Tetrachloroethane
Marilee Elmont
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
18
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 | 2 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 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 |
|---|---|---|
| 2014-08-18 | Q1437103011 | ND |
| 2014-08-18 | Q1437103008 | ND |
| 2015-07-15 | Q1527270005 | ND |
| 2015-07-15 | Q1527270003 | ND |
| 2015-07-15 | Q1527270002 | ND |
| 2016-06-22 | Q1625662014 | ND |
| 2016-06-22 | Q1625662003 | ND |
| 2016-06-22 | Q1625662002 | ND |
| 2016-09-19 | Q1638405001 | ND |
| 2017-03-22 | Q1712324003 | ND |
| 2017-03-22 | Q1712324002 | ND |
| 2017-12-05 | Q1762918001 | ND |
| 2018-03-06 | Q1809285012 | ND |
| 2018-03-06 | Q1809285004 | ND |
| 2018-12-11 | Q1850963001 | ND |
| 2019-03-28 | Q1912690005 | ND |
| 2019-03-28 | Q1912690003 | ND |
| 2019-10-23 | Q1973423001 | ND |