1,1,1,2-Tetrachloroethane
Lone Star Public Water System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-04-10 | AC50150 | ND |
2014-06-05 | AC56101 | ND |
2015-03-18 | AC85015 | ND |
2015-03-18 | AC85019 | ND |
2015-04-22 | AC89236 | ND |
2016-06-02 | AD39187 | ND |
2016-06-02 | AD39193 | ND |
2017-09-07 | AD95164 | ND |
2017-09-07 | AD95162 | ND |
2018-06-28 | AE31997 | ND |
2018-06-28 | AE32003 | ND |
2019-11-05 | AE88484 | ND |
2019-11-05 | AE88468 | ND |