For this project in the villages of Wilmette and Northfield, work included a Preliminary Environmental Site Assessment (PESA). purpose of this PESA is to identify the presence of any Recognized Environmental Conditions (RECs) within the study corridor from current and historical land uses. Other services included the collection of subsurface soil samples for chemical analysis to quantitatively determine the concentration of contaminants of concern, if any. This project also included a Clean Construction and Demolition Debris (CCDD) certification of qualified soils.