2,4,5-TP (Silvex)
Edina
2(2,4,5-trichlorophenoxy) propionic acid (2,4,5-TP or Silvex) is a cancer-causing herbicide banned in the U.S. in 1985 because of its toxicity. It is still detected as a groundwater contaminant in areas where it was sprayed or stored.
39
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 | 5 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 14 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 11 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 3 ppb
The EWG Health Guideline of 3 ppb for 2,4,5-TP 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 harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 50 ppb
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-20 | 14H1844-02 | ND |
| 2014-08-20 | 14H1844-03 | ND |
| 2014-08-20 | 14H1841-02 | ND |
| 2014-11-19 | 14K0831-01 | ND |
| 2014-11-19 | 14K0831-02 | ND |
| 2016-04-11 | 3428675 | ND |
| 2016-04-11 | 3428696 | ND |
| 2016-04-11 | 3428659 | ND |
| 2016-04-11 | 3428603 | ND |
| 2016-06-20 | 3475889 | ND |
| 2016-06-21 | 3475814 | ND |
| 2016-06-21 | 3475841 | ND |
| 2016-06-21 | 3475904 | ND |
| 2016-06-21 | 3475925 | ND |
| 2016-06-21 | 3478335 | ND |
| 2016-07-21 | 3500795 | ND |
| 2016-07-21 | 3500790 | ND |
| 2016-07-21 | 3500707 | ND |
| 2016-07-21 | 3500712 | ND |
| 2017-07-26 | 17G1803-01 | ND |
| 2018-06-20 | 18F1380-01 | ND |
| 2018-06-20 | 18F1380-02 | ND |
| 2018-06-20 | 18F1382-01 | ND |
| 2018-06-20 | 18F1382-02 | ND |
| 2018-06-20 | 18F1382-03 | ND |
| 2018-08-01 | 18H0106-02 | ND |
| 2018-08-01 | 18H0106-04 | ND |
| 2018-08-01 | 18H0106-03 | ND |
| 2018-08-01 | 18H0106-01 | ND |
| 2018-08-01 | 18H0094-02 | ND |
| 2018-08-01 | 18H0094-01 | ND |
| 2019-08-05 | 19H0330-01 | ND |
| 2019-08-05 | 19H0330-02 | ND |
| 2019-08-05 | 19H0330-03 | ND |
| 2019-08-20 | 19H1758-02 | ND |
| 2019-10-10 | 19J0709-01 | ND |
| 2019-10-10 | 19J0709-02 | ND |
| 2019-10-10 | 19J0709-03 | ND |
| 2019-10-10 | 19J0709-04 | ND |