1,1,1,2-Tetrachloroethane
CTWC - Unionville System
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 16 | 0 | ND |
2015 | ND | 15 | 0 | ND |
2016 | ND | 14 | 0 | ND |
2017 | ND | 8 | 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 |
---|---|---|
2014-01-21 | BG01724VOC1 | ND |
2014-01-22 | BG01725VOC1 | ND |
2014-01-22 | BG01728VOC1 | ND |
2014-01-22 | BG01727VOC1 | ND |
2014-01-22 | BG01726VOC1 | ND |
2014-01-22 | BG017276VOC1 | ND |
2014-02-12 | BG09383VOC1 | ND |
2014-04-02 | BG26931VOC1 | ND |
2014-04-03 | BG26932VOC1 | ND |
2014-04-03 | BG26933VOC1 | ND |
2014-07-09 | BG72399VOC1 | ND |
2014-07-09 | BG72400VOC1 | ND |
2014-07-09 | BG72401VOC1 | ND |
2014-10-01 | BH22261VOC1 | ND |
2014-10-16 | BH28261VOC1 | ND |
2014-10-16 | BH28262VOC1 | ND |
2015-01-07 | BH61113VOC1 | ND |
2015-01-07 | BH61116VOC1 | ND |
2015-01-07 | BH61115VOC1 | ND |
2015-01-07 | BH61114VOC1 | ND |
2015-01-07 | BH61112VOC1 | ND |
2015-01-22 | BH66100VOC1 | ND |
2015-04-28 | BJ08475VOC1 | ND |
2015-04-28 | BJ08476VOC1 | ND |
2015-05-05 | BJ12368VOC1 | ND |
2015-07-15 | BJ47000VOC1 | ND |
2015-07-15 | BJ47001VOC1 | ND |
2015-08-05 | BJ69611VOC1 | ND |
2015-10-06 | BK02878VOC1 | ND |
2015-10-06 | BK02877VOC1 | ND |
2015-10-06 | BK02876VOC1 | ND |
2016-01-11 | BK51257VOC1 | ND |
2016-01-11 | BK51258VOC1 | ND |
2016-01-11 | BK51260VOC1 | ND |
2016-01-11 | BK51261VOC1 | ND |
2016-01-11 | BK51259VOC1 | ND |
2016-04-11 | BN12525VOC1 | ND |
2016-04-11 | BN12526VOC1 | ND |
2016-04-11 | BN12527VOC1 | ND |
2016-08-16 | BN92944VOC1 | ND |
2016-08-16 | BN92945VOC1 | ND |
2016-08-16 | BN92946VOC1 | ND |
2016-10-24 | BV62669VOC1 | ND |
2016-10-24 | BV62670VOC1 | ND |
2016-11-01 | BV72457VOC1 | ND |
2017-05-23 | BY28459VOC1 | ND |
2017-07-25 | BY71391VOC1 | ND |
2017-07-25 | BY71392VOC1 | ND |
2017-07-25 | BY71394VOC1 | ND |
2017-07-25 | BY71393VOC1 | ND |
2017-08-15 | BY84216VOC1 | ND |
2017-10-27 | BZ28354VOC1 | ND |
2017-11-28 | BZ47211VOC1 | ND |
2018-07-23 | CA96742 | ND |
2018-07-23 | CA96743 | ND |
2018-07-31 | CB01360 | ND |
2019-01-29 | VOC1 200520002 | ND |
2019-01-29 | VOC1 200519997 | ND |