A category assigned to a site or pathway that poses a public health hazard because of long-term exposures to hazardous substances could result in adverse health effects.

This public health conclusion category is used for sites that pose a public health hazard due to the existence of exposures to hazardous substances or conditions that could result in adverse health effects.

The category is used in PHAs for sites that have certain physical features or evidence of chronic, site-related chemical exposure that could result in adverse health effects.