1,1,2,2-Tetrachloroethane
Littleton Water Department
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
41
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 | 8 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 7 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-06-04 | ND |
| 2014-06-04 | ND |
| 2014-06-16 | ND |
| 2014-09-29 | ND |
| 2014-11-17 | ND |
| 2015-02-04 | ND |
| 2015-04-16 | ND |
| 2015-04-22 | ND |
| 2015-04-22 | ND |
| 2015-04-22 | ND |
| 2015-04-22 | ND |
| 2015-04-28 | ND |
| 2015-05-26 | ND |
| 2016-06-09 | ND |
| 2016-06-21 | ND |
| 2016-06-21 | ND |
| 2016-06-21 | ND |
| 2016-06-21 | ND |
| 2016-06-21 | ND |
| 2016-06-21 | ND |
| 2017-05-24 | ND |
| 2017-05-24 | ND |
| 2017-06-19 | ND |
| 2017-06-19 | ND |
| 2017-06-19 | ND |
| 2017-06-19 | ND |
| 2017-06-19 | ND |
| 2018-04-11 | ND |
| 2018-05-01 | ND |
| 2018-05-01 | ND |
| 2018-05-01 | ND |
| 2018-05-07 | ND |
| 2018-05-07 | ND |
| 2018-06-19 | ND |
| 2019-05-01 | ND |
| 2019-05-01 | ND |
| 2019-05-01 | ND |
| 2019-05-01 | ND |
| 2019-05-30 | ND |
| 2019-06-05 | ND |
| 2019-06-17 | ND |