1,1,1,2-Tetrachloroethane
River Falls Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
21
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 8 | 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 |
|---|---|---|
| 2014-06-11 | 796163 | ND |
| 2014-06-11 | 796157 | ND |
| 2014-06-11 | 796166 | ND |
| 2014-06-11 | 796169 | ND |
| 2014-06-11 | 796160 | ND |
| 2015-09-24 | 885690 | ND |
| 2015-10-26 | 890948 | ND |
| 2016-03-17 | 910824 | ND |
| 2016-05-31 | 923422 | ND |
| 2016-09-13 | 945512 | ND |
| 2016-10-11 | 952738 | ND |
| 2017-03-07 | 976543 | ND |
| 2017-05-01 | 986327 | ND |
| 2017-05-02 | 986335 | ND |
| 2017-05-02 | 986339 | ND |
| 2017-05-02 | 986331 | ND |
| 2017-05-02 | 986343 | ND |
| 2017-07-27 | 1007195 | ND |
| 2017-10-10 | 1023449 | ND |
| 2018-06-05 | 1060415 | ND |
| 2019-09-10 | 1146566 | ND |