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[SWMU B-9]
Previous Investigations (Updated): None. The investigation planned under RL17 was inadvertently conducted at AOC 44.
Data Needs: Geophysical data for SWMU B-9. Previous geophysical survey was inadvertently conducted at AOC 44. The geophysical survey will be conducted prior to collecting any samples for chemical analysis.
Investigation Activities:
Remove any vegetation necessary to complete field activities listed below. If any potential UXO is observed during field activities, work will cease until UXO specialists are brought on site to identify and remove UXO.
Conduct a geophysical survey, as described in Section 2.4.1 of the Work Plan Overview, of the mapped site to identify any anomalies. A ground penetrating radar (GPR) device and an EM-31 instrument will be used to complete the geophysical survey. The approximate locations of the survey points are shown on Figure B9-2. The locations of the four corners of the survey points will be recorded using a GPS unit. Analysis of the EM and GPR data will follow field activities.