After performing Phase I and II Environmental Site Assessments for the multiple properties comprising this site, Ten Bears personnel developed cost estimates and provided field review for the segregation and disposal of petroleum soils excavated for construction. Excavation of petroleum soils was necessitated by the construction of below-grade parking resulting in excavation depths as great as 40 feet. To minimize the volume of soil requiring special handling and disposal, Ten Bears personnel provided in the field guidance for segregation of petroleum soils encountered during excavation. In addition, Ten Bears personnel provided closure documentation for seven underground storage tanks removed during the excavation.