A robust decision-support system (DSS) was developed to provide environmental managers with all integrated measure for tackling subsuface contamination problems. Such a DSS included components of mathematical modeling, risk assessment, remediation-technique screening, and monitoring-program design. A visual-language-based software package, named NRSRM, was developed for facilitating a variety of functions within the DSS. It provided a collection of measures for analyzing and visualizing subsurface contamination problems. A contaminated site located in western Canada was examined to demonstrate its applicability By exploring different remedial technologies, NRSRM recommended six alternatives for cleaning lip the site. Users call click selected items under each alternative to acquire more information of the related actions and efficiencies.