1,1,1,2-Tetrachloroethane
Ulster Water District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-10-01 | JH1407079 | ND |
| 2015-10-27 | JH1507245 | ND |
| 2016-10-17 | S012384 | ND |
| 2016-11-15 | S013255-01 | ND |
| 2017-01-26 | S015228-01 | ND |
| 2017-05-25 | S018669-01 | ND |
| 2017-06-27 | S019801-02 | ND |
| 2017-10-14 | S023830-01 | ND |
| 2017-10-25 | S023848-01 | ND |
| 2018-10-15 | S033865-01 | ND |
| 2019-10-03 | S043360-01 | ND |