Hazardous Waste Combustion Risk Assessment, DuPont Experimental Station Facility

LOCATION: Wilmington, DE

Hazardous Waste Combustion Risk Assessment, DuPont Experimental Station Facility


  • Human Health and Ecological Risk Assessment
  • EPA Hazardous Waste Combustion Guidance
  • Fugitive Emissions and Upset Conditions


Avatar employed the most current EPA Hazardous Waste Combustion risk assessment protocol to evaluate multipathway exposures to humans and ecological receptors at this incinerator located in EPA Region 3. Avatar staff has performed over 30 combustion-related risk assessments similar to the DuPont Experimental Station Facility in Wilmington, DE, is experienced in all relevant technical aspects of these projects, and have significant negotiating, public participation, and permitting experience as well. Avatar used its considerable experience in these types of projects to assist DuPont in applying and modifying this guidance to make it applicable to this project. This approach is critical in addressing some of the conservative aspects of this EPA guidance and in making the risk assessment more realistic and defensible. Avatar dealt with both EPA Region 3 and the State of Delaware in bringing this project to a successful conclusion.

Avatar evaluated stack emissions for their potential impact on human health and the environment. In addition, fugitive emissions and upset condition emissions were evaluated for potential chronic and acute health effects. Residential, farming and fishing scenarios were evaluated. In addition to a comprehensive risk assessment, Avatar is experienced in dealing with the integration of risk assessment concerns with trial burns and compliance test programs. This understanding of the big picture assisted DuPont in developing realistic operating conditions for their facility.

Incinerator projects are often contentious and require significant interaction with the local community to explain the approach and the results of the entire risk assessment process. Avatar senior staff has been involved in many public outreach and communication programs for these projects, including multiple meetings with citizen groups and public meeting support. We know how to translate complicated technical information into language the interested public can understand.