1,1,1,2-Tetrachloroethane
North Harrison Water Supply Corporation
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
17
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 | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-11-10 | Q1455243004 | ND |
| 2015-03-20 | Q1510571007 | ND |
| 2015-05-27 | Q1519430020 | ND |
| 2015-05-27 | Q1519430014 | ND |
| 2015-05-27 | Q1519430011 | ND |
| 2016-11-01 | Q1647008014 | ND |
| 2016-11-01 | Q1647008011 | ND |
| 2016-11-01 | Q1647008012 | ND |
| 2017-10-04 | Q1748860003 | ND |
| 2017-10-04 | Q1748860002 | ND |
| 2017-10-04 | Q1748860013 | ND |
| 2018-11-06 | Q1844291006 | ND |
| 2018-11-06 | Q1844291004 | ND |
| 2018-11-06 | Q1844291003 | ND |
| 2019-03-05 | Q1909314001 | ND |
| 2019-03-05 | Q1909314005 | ND |
| 2019-03-05 | Q1909314003 | ND |