2,4,5-TP (Silvex)
Franklin Square WD
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 | ND | 4 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 6 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-04-01 | 1404080-001-SOCS | ND |
2014-04-01 | 1404080-002-SOCS | ND |
2014-04-08 | 1404651-002-SOCS | ND |
2014-04-15 | 1404B70-001-SOCS | ND |
2015-08-04 | 1508266-002-SOCS | ND |
2015-08-11 | 1508871-001-SOCS | ND |
2015-08-11 | 1508266-001-SOCS | ND |
2015-08-11 | 1508871-002-SOCS | ND |
2015-08-25 | 1508J38-001-SOCS | ND |
2017-04-04 | 701499801-SOCS | ND |
2017-04-04 | 7014998001-SOCS | ND |
2017-04-04 | 701-4998002-SOC | ND |
2017-04-11 | 7015529001 | ND |
2017-04-11 | 7015529002 | ND |
2017-04-18 | 7016178001 | ND |
2018-12-04 | 7072994001 | ND |
2018-12-04 | 7072994003 | ND |
2018-12-04 | 7072994004 | ND |
2018-12-04 | 7072994002 | ND |