1,1,1,2-Tetrachloroethane
Ctwc - South Coventry System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-01-10 | BF97090VOC1 | ND |
| 2014-01-10 | BF97091VOC1 | ND |
| 2015-10-08 | BK05107VOC1 | ND |
| 2016-04-29 | BN21872VOC1 | ND |
| 2016-04-29 | BN21871VOC1 | ND |
| 2017-04-13 | BY04007VOC1 | ND |
| 2018-02-02 | BZ84112VOC1 | ND |
| 2018-02-09 | BZ87359VOC1 | ND |
| 2019-04-26 | VOC1 200529819 | ND |