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Page 3 <br /> Four soil borings, B-4 through B-7, were drilled to a depth of 20 feet below ground surface <br /> Groundwater samples were collected from B-4 through B-7 using hydropunch sampling <br /> equipment Three soil borings, B-1 through B-3, were drilled to approximately 25 feet <br /> below ground surface on the northern and downgradient boundary of the site, near the <br /> sidewalk on West Benjamin Holt Drive Soil borings B-1 through B-3 were subsequently <br /> converted into monitor wells,MW-4 through MW-6, respectively <br /> Laboratory analyses of soil and groundwater samples collected from this site during the two <br /> subsurface investigations indicate hydrocarbon impact to both soil and groundwater primarily <br /> in the immediate vicinity of the pump island (bormgs B-5, B-6 and monitor well MW-2) and <br /> the underground storage tanks (boring B-4) <br /> On October 9, 1991 the underground storage tanks,pumps and product pipelines were <br /> removed The 450-500 cubic yards of excavated soil was stored on plastic sheeting pending <br /> analytical results The soil pale was sampled on December 9, 1991 The soil was transported <br /> on December 14, 1991 by Dillard Trucking, Inc to the two landfills The soil with levels of <br /> TPH-g over 100 ppm was transported to Chemical Waste Management Kettleman City <br /> Facility in Kettleman City, Cahfomna and the remainder of the pile with TPH-g under 100 <br /> ppm was transported to B F 1 , Vasco Road Landfall in Livermore, California <br />