File characteristics: Software (83 files); ASCII character set. Physical description: 4 computer diskettes; 3 1/2 in.; high density; 44MB. System requirements: PC and UNIX compatible; DOS. The objective of this research is to develop a groundwater remediation advisory system for use in investigating possible remediation activities for the cleanup of contamination from hazardous substances, pollutants and contaminants at Air Force sites. The advisory system provides a decision framework for selecting an appropriate model from the numerous available transport models conditioned on available site data. In addition, the use of optimization methods is explored for determining optimal remediation strategies at a specific site. The optimization routine evaluates tradeoffs between the long-term cost of remediation and the probability the remediation strategy will fail. The final product of this project is a computer-based Air Force Installation Restoration Workstation Advisory System for contaminant modeling and decision-making. This software can be used as an aid to technical project managers within the US Air Force Installation Restoration Program in developing and evaluating possible remediation alternatives and managing ongoing remediation activities. This users manual provides guidance on use of the advisory system. (Author).