1,1,1,2-Tetrachloroethane
City of Hurst
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-08-13 | Q1436928004 | ND |
| 2014-08-13 | Q1436928002 | ND |
| 2015-04-09 | Q1513322006 | ND |
| 2015-04-09 | Q1513322004 | ND |
| 2015-04-09 | Q1513322001 | ND |
| 2016-03-21 | AD29581 | ND |
| 2016-07-11 | Q1627746002 | ND |
| 2016-07-11 | Q1627746006 | ND |
| 2016-07-11 | Q1627746004 | ND |
| 2017-01-04 | Q1700326003 | ND |
| 2017-01-04 | Q1700326012 | ND |
| 2017-07-24 | Q1730292001 | ND |
| 2018-07-10 | Q1826956005 | ND |
| 2018-07-10 | Q1826956002 | ND |
| 2018-10-02 | Q1839327002 | ND |
| 2019-01-16 | Q1902266010 | ND |
| 2019-01-16 | Q1902266002 | ND |
| 2019-04-17 | Q1915359005 | ND |