1,1,1,2-Tetrachloroethane
Mercy Water Supply Corporation
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
25
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2015-04-07 | AC87526 | ND |
| 2015-04-07 | AC87520 | ND |
| 2015-04-07 | AC87516 | ND |
| 2016-01-14 | AD18249 | ND |
| 2016-01-14 | AD18293 | ND |
| 2016-01-14 | AD18247 | ND |
| 2016-01-14 | AD18299 | ND |
| 2016-01-14 | AD18245 | ND |
| 2016-04-04 | AD31669 | ND |
| 2016-07-29 | AD46459 | ND |
| 2016-09-24 | AD51176 | ND |
| 2016-11-07 | AD56823 | ND |
| 2016-11-07 | AD56809 | ND |
| 2017-07-26 | AD90855 | ND |
| 2017-07-26 | AD90853 | ND |
| 2017-10-09 | AD99854 | ND |
| 2017-10-09 | AD99850 | ND |
| 2018-04-03 | AE21053 | ND |
| 2018-04-03 | AE21049 | ND |
| 2018-04-03 | AE21047 | ND |
| 2018-04-03 | AE21051 | ND |
| 2019-03-28 | AE60490 | ND |
| 2019-03-28 | AE60492 | ND |
| 2019-03-28 | AE60494 | ND |
| 2019-03-28 | AE60496 | ND |