A risk-based remediation approach was developed as a design tool to support the decision-making process and re-examine remediation goals at an industrial site contaminated with chlorinated organics. This strategy is becoming a common practice in Brazil, as enforced by most environmental agencies and regulators. The risk-based approach demanded the assessment of contaminant exposure pathways as well as groundwater mass transport analysis, taking into account the intrinsic degradation pathways and other natural attenuation mechanisms. It was also emphasized the premise that groundwater transport modeling is inherently complex due to geological matrix and DNAPL characterization which determines the final contaminant concentrations at points of compliance and/or exposure. The Domenico's analytical solution for the advective-dispersive transport equation was used and its input parameters were assumed to be normally distributed. Risk analysis results indicate that vinyl chloride is responsible for the most elevated calculated risk at the site. Therefore, the understanding of the mechanisms of formation of this compound is a key factor to promote the best remedial action to be adopted. As the pump-and-treat system is not sufficient to eliminate the free-phase DNAPL source and achieve site closure, other remediation alternatives are being considered, such as soil vapor extraction and enhanced bioremediation in order to achieve the calculated SSTLs (site specific target levels).