Abreeviated as qHRSC. High-resolution quantitative groundwater and soil sampling and analysis, geophysical methods, and aquifer characterization are combined to develop a conceptual site model (CSM) of contaminant mass distribution with a high degree of accuracy. The CSM is in turn used to develop targeted remediation plans focused on optimizing remedial cost and timeframes. The level of sophistication at which the CSM is presented can vary depending on the complexity of the site. The presentation can range from tabular data and 2-dimensional projection to a more complex 3-dimensional model.