1,1,1,2-Tetrachloroethane
Superior Water Light & Power Company
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 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 |
|---|---|---|
| 2014-04-23 | 782246 | ND |
| 2016-02-16 | 905547 | ND |
| 2016-04-12 | 914974 | ND |
| 2016-07-13 | 933310 | ND |
| 2016-10-18 | 954299 | ND |
| 2017-01-24 | 971015 | ND |
| 2017-04-25 | 985193 | ND |
| 2017-07-24 | 1006127 | ND |
| 2017-10-23 | 1025643 | ND |
| 2018-02-21 | 1042019 | ND |
| 2018-04-25 | 1051968 | ND |
| 2018-07-23 | 1068991 | ND |
| 2018-10-22 | 1088278 | ND |
| 2019-01-23 | 1102681 | ND |
| 2019-04-22 | 1116705 | ND |
| 2019-07-16 | 1134940 | ND |