RGM performs site evaluations to identify the status of a site from Phase 1 through to site closure. Part of our work involves a site walkover and a desktop study to gather information on the current and previous site conditions. A hydrocensus is also conducted to determine the potential receptors near the site that might be affected by possible contaminants. Once the necessary information has been gathered, a conceptual site model is developed to illustrate the site conditions from source, pathway and receptor linkages. All the gathered data are tested against the appropriate screening criteria to assess what further work is required.