Gun Site 720 Rubble Pit: Environmental information document

The Gun Site 720 Rubble Pit is located north of D Area at the Savannah River Plant (SRP). This rubble pit is near the location of a former gun replacement in operation during the mid-1950s. Eight drums (from visual inspection) of unknown content and origin were disposed at this waste site. No soil cores from the rubble pit have been collected and analyzed. Groundwater in the area has not been evaluated because there are no monitoring wells in the vicinity. The closure options postulated for the site are waste removal and closure, no waste removal and closure, and no action. No human health risk calculations were performed for this site because no materials disposed at the site could be identified as presenting a health or environmental risk. A cost estimate for each closure option was prepared. The cost analysis shows that removal of the drums and surface soils from the Gun Site 720 Rubble Pit and disposal in a waste storage/disposal facility is more expensive than the other two options by about a factor of 2.