1,1,1,2-Tetrachloroethane
Porter SUD
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
31
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 | 1 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-07-08 | AC59005 | ND |
| 2015-04-13 | AC87989 | ND |
| 2015-04-13 | AC87995 | ND |
| 2015-04-13 | AC87983 | ND |
| 2015-04-13 | AC87991 | ND |
| 2015-04-13 | AC88001 | ND |
| 2015-04-13 | AC88005 | ND |
| 2015-09-30 | AD09108 | ND |
| 2015-09-30 | AD09106 | ND |
| 2015-11-19 | AD14236 | ND |
| 2015-11-19 | AD14238 | ND |
| 2016-01-12 | AD17610 | ND |
| 2016-01-12 | AD17618 | ND |
| 2016-01-12 | AD17620 | ND |
| 2016-01-12 | AD17608 | ND |
| 2016-01-12 | AD17602 | ND |
| 2017-01-19 | AD65761 | ND |
| 2017-01-19 | AD65751 | ND |
| 2017-01-19 | AD65767 | ND |
| 2017-01-19 | AD65769 | ND |
| 2017-10-11 | AE00408 | ND |
| 2018-01-09 | AE08391 | ND |
| 2018-01-09 | AE08367 | ND |
| 2018-01-09 | AE08369 | ND |
| 2018-01-09 | AE08409 | ND |
| 2018-11-26 | AE46856 | ND |
| 2019-01-23 | AE50957 | ND |
| 2019-01-23 | AE50961 | ND |
| 2019-01-23 | AE50955 | ND |
| 2019-01-23 | AE50953 | ND |
| 2019-01-23 | AE50951 | ND |