1,1,1,2-Tetrachloroethane
Janesville Water Utility
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 8 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2014-02-25 | 771928 | ND |
| 2014-02-25 | 771931 | ND |
| 2014-02-25 | 771925 | ND |
| 2014-02-26 | 772232 | ND |
| 2014-02-26 | 772235 | ND |
| 2014-04-28 | 782734 | ND |
| 2014-07-29 | 806667 | ND |
| 2014-10-14 | 825486 | ND |
| 2015-02-11 | 843014 | ND |
| 2015-04-29 | 857167 | ND |
| 2015-08-19 | 878021 | ND |
| 2015-11-10 | 893381 | ND |
| 2016-02-09 | 904717 | ND |
| 2016-04-26 | 917940 | ND |
| 2016-08-01 | 936371 | ND |
| 2017-04-11 | 982422 | ND |
| 2017-04-11 | 982425 | ND |
| 2017-04-11 | 982417 | ND |
| 2018-01-31 | 1039237 | ND |
| 2018-05-14 | 1055415 | ND |
| 2018-07-10 | 1065966 | ND |
| 2018-11-06 | 1091305 | ND |
| 2019-02-04 | 1103525 | ND |
| 2019-05-21 | 1122290 | ND |
| 2019-07-31 | 1137854 | ND |