2,4,5-TP (Silvex)
Status: National drinking water standard exists
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.
0
states detected
0
utilities detected
0
people served
State and national drinking water standards and health guidelines
Health Guideline 3 ppb
The 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.
ppb = parts per billion.
EPA Maximum Contaminant
Level (MCL) 50 ppb
The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.
ppb = parts per billion.
EPA Maximum Contaminant
Level Goal (MCLG)50.0 ppb
A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.
ppb = parts per billion.
States reporting 2,4,5-TP in drinking water
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| State | Utilities | People Served |
Utilities with the highest amounts of 2,4,5-TP, 2015
| Utility | Location | Tests | Average level | People served |
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| Utility | Location | Tests | Average level | People served |
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