1,1,1,2-Tetrachloroethane
City of Newman Water Department
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
9
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 | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-06-23 | 1120-010-0900 | ND |
| 2016-07-06 | 1120-005-0915 | ND |
| 2016-07-06 | 1120-006-0900 | ND |
| 2017-07-06 | 1120-010-1102 | ND |
| 2018-12-20 | 1120-004-0832 | ND |
| 2019-05-02 | 1120-012-0911 | ND |
| 2019-07-11 | 1120-006-1056 | ND |
| 2019-08-15 | 1120-012-1200 | ND |
| 2019-11-14 | 1120-012-0938 | ND |