This Corrective Action Implementation Work Plan was prepared to implement the corrective actions identified in the Final Building 1065 Area Corrective Action Plan to address soil and groundwater contamination at the Building 1065 Area, Presidio of San Francisco, California. The activities described in this Work Plan identify the fieldwork components of implementing the corrective actions to address soil and groundwater contamination that is related to or co-located with releases of petroleum hydrocarbons from past uses of the Site. The Construction Drawings and Technical Specifications provide additional detail regarding what is required of the Remediation Contractor for the excavation activities. The Site was historically used for vehicle maintenance, and contained a service/gas station, garage, laundry with dry cleaning facility, crematory, paint shop, power house/steam plant, fuel oil storage, and fuel oil distribution lines, occupational therapy building, warehouses, isolation ward and prison, wagon shed, and an incinerator.