2,4,5-TP (Silvex)
Morrisville State College
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 | ND | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-06-19 | 06191401CSOC | ND |
2014-06-19 | 06191402CSOC | ND |
2014-06-19 | 06191403CSOC | ND |
2015-06-24 | 0624151C | ND |
2015-06-24 | 06241512CSOC | ND |
2015-06-24 | 06241513C | ND |
2018-06-07 | 06071808C | ND |
2018-06-07 | 06071810C | ND |
2018-06-07 | 06071809C | ND |
2019-05-30 | 05301907C | ND |
2019-05-30 | 05301908C | ND |
2019-05-30 | 05301909C | ND |