1,1,1,2-Tetrachloroethane
Monona Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
24
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 | 5 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-09-02 | 154323001 | ND |
| 2014-09-02 | 154276001 | ND |
| 2014-09-05 | 155135001 | ND |
| 2014-09-25 | 159907001 | ND |
| 2014-12-12 | 172471001 | ND |
| 2015-01-30 | 177607001 | ND |
| 2015-06-16 | 199937001 | ND |
| 2015-07-14 | 205376001 | ND |
| 2015-07-14 | 205378001 | ND |
| 2015-11-17 | 228870001 | ND |
| 2016-02-01 | 237611001 | ND |
| 2016-04-06 | 247252001 | ND |
| 2016-07-07 | 264567001 | ND |
| 2016-09-28 | 280796001 | ND |
| 2016-10-20 | 285154001 | ND |
| 2017-03-30 | 306799001 | ND |
| 2017-04-13 | 309656001 | ND |
| 2017-04-13 | 309655001 | ND |
| 2017-04-13 | 309654001 | ND |
| 2017-09-22 | 344258001 | ND |
| 2018-07-11 | 393604001 | ND |
| 2018-09-25 | 410134001 | ND |
| 2019-04-24 | 442084001 | ND |
| 2019-09-05 | 467810001 | ND |