1,1,1,2-Tetrachloroethane
Montclair Water Bureau
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
27
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 | 11 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-02-27 | 4020540-02 | ND |
| 2014-06-20 | 4060637-02 | ND |
| 2014-06-20 | 4060637-04 | ND |
| 2014-06-20 | 4060637-06 | ND |
| 2014-07-22 | 4070666-02 | ND |
| 2014-09-10 | 28750-4 | ND |
| 2014-09-10 | 28750-2 | ND |
| 2014-09-10 | 28750-6 | ND |
| 2014-11-04 | 29684-4 | ND |
| 2014-11-04 | 29684-2 | ND |
| 2014-11-04 | 29684-6 | ND |
| 2015-03-06 | 31544-2 | ND |
| 2015-05-19 | DWS537-6 | ND |
| 2015-05-19 | DWS537-4 | ND |
| 2015-05-19 | DWS537-2 | ND |
| 2015-07-21 | DWSC68-2 | ND |
| 2015-07-29 | DWSC90-2 | ND |
| 2015-07-29 | DWSC90-4 | ND |
| 2015-11-06 | DWSC724-2 | ND |
| 2015-11-06 | DWSC724-4 | ND |
| 2017-08-28 | DWSC3790-2 | ND |
| 2017-10-11 | DWSC4095-2 | ND |
| 2018-06-07 | DWSC5477-6 | ND |
| 2018-08-16 | 18081706-01 | ND |
| 2018-10-25 | 18102615-02 | ND |
| 2019-02-27 | 19022804-02 | ND |
| 2019-07-18 | 19072203-002 | ND |