Objective:
The objective of this research effort is to test, confirm and demonstrate the practicality of various model abstraction techniques for characterizing and simulating subsurface flow and contaminant transport through soils using a range of simple to complex analytical and numerical models at the watershed scale.

Approach:
Identify and review appropriate model abstraction techniques for hierarchical application of transport modeling for specific soil and contaminant properties and particular environmental conditions at watershed scale; test and confirm the appropriateness of the model abstraction approach through comparisons with conventional complex flow and transport models.