1,1,1,2-Tetrachloroethane
Rolling Green First Addition
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2015-06-08 | 15F0520-01 | ND |
| 2015-06-08 | 15F0520-02 | ND |
| 2015-08-13 | 15H0974-01 | ND |
| 2015-08-13 | 15H0974-02 | ND |
| 2015-11-02 | 15K0134-02 | ND |
| 2015-11-02 | 15K0134-03 | ND |
| 2016-03-14 | 3414156 | ND |
| 2016-03-14 | 3414240 | ND |
| 2016-05-03 | 16E0133-01 | ND |
| 2016-05-03 | 16E0133-02 | ND |
| 2017-08-21 | 17H1662-01 | ND |
| 2017-08-21 | 17H1662-02 | ND |
| 2018-07-18 | 18G1275-01 | ND |