Appendix C: Discussion Items

Appendix C

Discussion Items

General Questions to be Addressed

by All Workgroups

a. How should information attained from the Army Corps' tiered testing

framework be used in a risk assessment?

b. When should risk assessment be used within the tiered assessment

framework?

c. Who will perform risk assessments on dredged material management

projects?

d. What are the limitations to conducting a risk assessment that is not site

specific (e.g., How can one use risk to rank management alternatives prior

to site selection)?

Exposure Assessment Workgroup

a. What are the important fate and transport pathways associated with

different disposal alternatives? What physical fate and transport models

can be used to model these pathways? Do the models predict

concentrations in ambient water and sediment?

b. Describe monitoring occurring at dredged material disposal sites (i.e.,

What types of physical, chemical, and biological data are being collected

at these sites?)

c. What other types of information could be collected during dredged material

evaluations to better facilitate evaluation of fate and transport mechanisms

(e.g., Since concentrations of dissolved organic carbon (DOC) in ambient

waters can affect concentrations of freely dissolved organic contaminants

Appendix C Discussion Items