2,4,5-TP (Silvex)
Winfield Water Works & Sewer Board
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.
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 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 6 | 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 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 |
---|---|---|
2015-01-13 | 150113012-3 | ND |
2015-01-13 | 150113012-1 | ND |
2015-01-13 | 150113012-2 | ND |
2015-04-17 | 150417020-1 | ND |
2015-04-17 | 150417020-2 | ND |
2015-04-17 | 150417020-3 | ND |
2018-01-08 | 180108028-1 | ND |
2018-01-08 | 180108028-2 | ND |
2018-01-08 | 180108028-3 | ND |
2018-04-10 | 180410042-1 | ND |
2018-04-10 | 180410042-2 | ND |
2018-04-10 | 180410042-3 | ND |