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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

UTILITIES WITH CONTAMINATION
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Utilities with the highest amounts of 2,4,5-TP, 2015

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UtilityLocationTestsAverage levelPeople served