The objectives of this term project are:

• to become familiar with the information available for past, current and planned activities at the site,
• to review and evaluate regional information and available site data describing hydrologic, physical and geologic characteristics of the site,
• to determine the sufficiency of the available site data for use in exposure pathway analysis related to chemical fate and transport modeling to be completed in future research, and
• to evaluate the air transport mechanism in more detail using an existing research model.

The evaluation of potential exposure pathways will take into account what is known about the operations of the facility and the potential future operations of the facility. The evaluation of the sufficiency of the data would include determining what is known and what is unknown about site conditions as the conditions relate to the physical and chemical processes of environmental transport. One transport mechanism will be studied in more detail. This is the air transport mechanism for which existing regional research models will be investigated. One model will be selected and will be run for several scenarios. The results using regional information will be compared to the existing site data.

It is envisioned that the results will include (1) identification of the likely exposure pathways to be evaluated in future research, (2) development of preliminary representations for the spatial variation of the site characteristics, (3) discussion of data needs for future fate and transport modeling, and (4) comparison of regional models for the air transport mechanisms to the site data.

Report Outline