2,4,5-TP (Silvex)
Vestal Consolidated WD #1
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.
24
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 | 6 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 6 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-09-30 | J4I0395-01SOC | ND |
| 2014-09-30 | J4I0395-03SOC | ND |
| 2014-09-30 | J4I0395-05SOC | ND |
| 2014-09-30 | J4I0395-06SOC | ND |
| 2014-09-30 | J4I0395-02SOC | ND |
| 2014-12-18 | J4L0232-03SOC | ND |
| 2015-11-19 | J5K0492-01SOC | ND |
| 2015-11-19 | J5K0492-04SOC | ND |
| 2015-11-19 | J5K0492-06SOC | ND |
| 2015-11-19 | J5K0492-03SOC | ND |
| 2015-11-19 | J5K0492-02SOC | ND |
| 2015-11-19 | J5K0492-05SOC | ND |
| 2017-10-03 | J7J0233-04SOC | ND |
| 2017-10-03 | J7J0233-02SOC | ND |
| 2017-10-03 | J7J0233-01SOC | ND |
| 2017-10-03 | J7J0233-05SOC | ND |
| 2017-10-03 | J7J0233-06SOC | ND |
| 2017-10-03 | J7J0233-03SOC | ND |
| 2019-06-19 | J9F1081-06 | ND |
| 2019-06-19 | J9F1081-02 | ND |
| 2019-06-19 | J9F1081-03 | ND |
| 2019-06-19 | J9F1081-04 | ND |
| 2019-06-19 | J9F1081-05 | ND |
| 2019-06-19 | J9F1081-01 | ND |