1,1,1,2-Tetrachloroethane
Meadow District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 6 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 3 | 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 |
---|---|---|
2014-06-30 | S504511 | ND |
2014-07-24 | L5171754-3 | ND |
2014-07-24 | L5171754-2 | ND |
2014-08-25 | S479228 | ND |
2014-08-25 | S479187 | ND |
2014-10-24 | S251490 | ND |
2015-01-22 | S588750 | ND |
2015-08-12 | S612424 | ND |
2015-08-12 | S612423 | ND |
2015-10-20 | S614748 | ND |
2016-03-01 | S659176 | ND |
2016-08-17 | S670377 | ND |
2016-08-17 | S670376 | ND |
2017-01-25 | S670508 | ND |
2017-07-25 | S730815 | ND |
2017-07-25 | S679349 | ND |
2017-08-29 | S730913 | ND |
2017-08-29 | S730909 | ND |
2018-08-30 | S812183 | ND |
2018-08-30 | S812179 | ND |
2018-11-09 | S812573 | ND |
2019-08-01 | S898798 | ND |
2019-08-01 | S898802 | ND |