1,1,1,2-Tetrachloroethane
Alexandria
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
37
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 16 | 0 | ND |
| 2016 | ND | 9 | 0 | ND |
| 2017 | ND | 10 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2015-01-14 | 15A0527-02 | ND |
| 2015-01-14 | 15A0527-03 | ND |
| 2015-01-14 | 15A0527-04 | ND |
| 2015-01-14 | 15A0529-02 | ND |
| 2015-01-14 | 15A0529-03 | ND |
| 2015-01-14 | 15A0529-04 | ND |
| 2015-01-14 | 15A0530-01 | ND |
| 2015-01-14 | 15A0527-01 | ND |
| 2015-06-09 | 15F0683-03 | ND |
| 2015-06-09 | 15F0688-01 | ND |
| 2015-06-09 | 15F0686-04 | ND |
| 2015-06-09 | 15F0686-03 | ND |
| 2015-06-09 | 15F0686-02 | ND |
| 2015-06-09 | 15F0683-04 | ND |
| 2015-06-09 | 15F0683-02 | ND |
| 2015-06-09 | 15F0683-01 | ND |
| 2016-02-23 | 16B1261-01 | ND |
| 2016-11-28 | 16K1115-02 | ND |
| 2016-11-28 | 16K1121-01 | ND |
| 2016-11-28 | 16K1118-04 | ND |
| 2016-11-28 | 16K1118-03 | ND |
| 2016-11-28 | 16K1118-02 | ND |
| 2016-11-28 | 16K1118-01 | ND |
| 2016-11-28 | 16K1115-03 | ND |
| 2016-11-28 | 16K1115-01 | ND |
| 2017-09-05 | 17I0174-01 | ND |
| 2017-09-05 | 17I0174-02 | ND |
| 2017-09-05 | 17I0175-01 | ND |
| 2017-09-05 | 17I0175-02 | ND |
| 2017-09-05 | 17I0175-03 | ND |
| 2017-09-05 | 17I0175-04 | ND |
| 2017-09-05 | 17I0180-01 | ND |
| 2017-09-05 | 17I0180-02 | ND |
| 2017-09-05 | 17I0180-03 | ND |
| 2017-09-05 | 17I0180-04 | ND |
| 2018-05-29 | 18E2383-01 | ND |
| 2019-10-15 | 19J0985-01 | ND |