2,4,5-TP (Silvex)
Pamlico County Water
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 8 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2016-05-31 | 37729_16-16886 | ND |
2016-05-31 | 37729_16-16889 | ND |
2016-05-31 | 37729_16-16890 | ND |
2016-05-31 | 37729_16-16891 | ND |
2016-12-07 | 37729_16-42669 | ND |
2016-12-07 | 37729_16-42674 | ND |
2016-12-07 | 37729_16-42677 | ND |
2016-12-07 | 37729_16-42681 | ND |
2019-07-23 | 37729_19-31388 | ND |
2019-07-23 | 37729_19-31389 | ND |
2019-07-23 | 37729_19-31390 | ND |
2019-07-30 | 37729_19-31929 | ND |
2019-12-19 | 37729_19-54391 | ND |
2019-12-19 | 37729_19-54392 | ND |
2019-12-19 | 37729_19-54393 | ND |
2019-12-19 | 37729_19-54394 | ND |